WO2024140679A1 - Spirocyclic hpk1 antagonists and uses thereof - Google Patents
Spirocyclic hpk1 antagonists and uses thereof Download PDFInfo
- Publication number
- WO2024140679A1 WO2024140679A1 PCT/CN2023/141942 CN2023141942W WO2024140679A1 WO 2024140679 A1 WO2024140679 A1 WO 2024140679A1 CN 2023141942 W CN2023141942 W CN 2023141942W WO 2024140679 A1 WO2024140679 A1 WO 2024140679A1
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- WIPO (PCT)
- Prior art keywords
- compound
- alkyl
- heterocycloalkyl
- cycloalkyl
- pharmaceutically acceptable
- Prior art date
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- 239000005557 antagonist Substances 0.000 title description 7
- 101100177670 Caenorhabditis elegans hpk-1 gene Proteins 0.000 title 1
- 150000001875 compounds Chemical class 0.000 claims abstract description 607
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 43
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- 101001059991 Homo sapiens Mitogen-activated protein kinase kinase kinase kinase 1 Proteins 0.000 claims abstract description 6
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- 125000000592 heterocycloalkyl group Chemical group 0.000 claims description 292
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- 229910052736 halogen Inorganic materials 0.000 claims description 170
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- 125000004093 cyano group Chemical group *C#N 0.000 claims description 103
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- 150000002431 hydrogen Chemical class 0.000 claims description 93
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- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 28
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- 150000002772 monosaccharides Chemical class 0.000 description 1
- 125000002757 morpholinyl group Chemical group 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- XBXCNNQPRYLIDE-UHFFFAOYSA-M n-tert-butylcarbamate Chemical compound CC(C)(C)NC([O-])=O XBXCNNQPRYLIDE-UHFFFAOYSA-M 0.000 description 1
- KVBGVZZKJNLNJU-UHFFFAOYSA-N naphthalene-2-sulfonic acid Chemical compound C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-N 0.000 description 1
- 125000004957 naphthylene group Chemical group 0.000 description 1
- 125000004593 naphthyridinyl group Chemical group N1=C(C=CC2=CC=CN=C12)* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- UMRZSTCPUPJPOJ-KNVOCYPGSA-N norbornane Chemical compound C1C[C@H]2CC[C@@H]1C2 UMRZSTCPUPJPOJ-KNVOCYPGSA-N 0.000 description 1
- 125000002868 norbornyl group Chemical group C12(CCC(CC1)C2)* 0.000 description 1
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N o-biphenylenemethane Natural products C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 125000005060 octahydroindolyl group Chemical group N1(CCC2CCCCC12)* 0.000 description 1
- 125000005061 octahydroisoindolyl group Chemical group C1(NCC2CCCCC12)* 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-M octanoate Chemical compound CCCCCCCC([O-])=O WWZKQHOCKIZLMA-UHFFFAOYSA-M 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920001542 oligosaccharide Polymers 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 125000001715 oxadiazolyl group Chemical group 0.000 description 1
- 125000000160 oxazolidinyl group Chemical group 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 125000000466 oxiranyl group Chemical group 0.000 description 1
- MHOVLDXJDIEEMJ-UHFFFAOYSA-N oxolan-3-amine;hydrochloride Chemical compound Cl.NC1CCOC1 MHOVLDXJDIEEMJ-UHFFFAOYSA-N 0.000 description 1
- 125000005476 oxopyrrolidinyl group Chemical group 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Chemical group OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 125000006340 pentafluoro ethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- NQFOGDIWKQWFMN-UHFFFAOYSA-N phenalene Chemical compound C1=CC([CH]C=C2)=C3C2=CC=CC3=C1 NQFOGDIWKQWFMN-UHFFFAOYSA-N 0.000 description 1
- 125000005562 phenanthrylene group Chemical group 0.000 description 1
- 125000001791 phenazinyl group Chemical group C1(=CC=CC2=NC3=CC=CC=C3N=C12)* 0.000 description 1
- 125000001484 phenothiazinyl group Chemical group C1(=CC=CC=2SC3=CC=CC=C3NC12)* 0.000 description 1
- 125000001644 phenoxazinyl group Chemical group C1(=CC=CC=2OC3=CC=CC=C3NC12)* 0.000 description 1
- 229940049953 phenylacetate Drugs 0.000 description 1
- WLJVXDMOQOGPHL-UHFFFAOYSA-N phenylacetic acid Chemical compound OC(=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-UHFFFAOYSA-N 0.000 description 1
- 229950009215 phenylbutanoic acid Drugs 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 125000004592 phthalazinyl group Chemical group C1(=NN=CC2=CC=CC=C12)* 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229940075930 picrate Drugs 0.000 description 1
- OXNIZHLAWKMVMX-UHFFFAOYSA-M picrate anion Chemical compound [O-]C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-M 0.000 description 1
- 125000004193 piperazinyl group Chemical group 0.000 description 1
- 229950010765 pivalate Drugs 0.000 description 1
- DIJNSQQKNIVDPV-UHFFFAOYSA-N pleiadene Chemical compound C1=C2[CH]C=CC=C2C=C2C=CC=C3[C]2C1=CC=C3 DIJNSQQKNIVDPV-UHFFFAOYSA-N 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- WSHYKIAQCMIPTB-UHFFFAOYSA-M potassium;2-oxo-3-(3-oxo-1-phenylbutyl)chromen-4-olate Chemical compound [K+].[O-]C=1C2=CC=CC=C2OC(=O)C=1C(CC(=O)C)C1=CC=CC=C1 WSHYKIAQCMIPTB-UHFFFAOYSA-M 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- UORVCLMRJXCDCP-UHFFFAOYSA-M propynoate Chemical compound [O-]C(=O)C#C UORVCLMRJXCDCP-UHFFFAOYSA-M 0.000 description 1
- 125000001042 pteridinyl group Chemical group N1=C(N=CC2=NC=CN=C12)* 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 125000000561 purinyl group Chemical group N1=C(N=C2N=CNC2=C1)* 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003072 pyrazolidinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000719 pyrrolidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 229940107700 pyruvic acid Drugs 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 230000006340 racemization Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- WEMQMWWWCBYPOV-UHFFFAOYSA-N s-indacene Chemical compound C=1C2=CC=CC2=CC2=CC=CC2=1 WEMQMWWWCBYPOV-UHFFFAOYSA-N 0.000 description 1
- 229960001860 salicylate Drugs 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 229940116351 sebacate Drugs 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Chemical group 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- AWUCVROLDVIAJX-GSVOUGTGSA-N sn-glycerol 3-phosphate Chemical compound OC[C@@H](O)COP(O)(O)=O AWUCVROLDVIAJX-GSVOUGTGSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- WRIKHQLVHPKCJU-UHFFFAOYSA-N sodium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([Na])[Si](C)(C)C WRIKHQLVHPKCJU-UHFFFAOYSA-N 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- 239000008117 stearic acid Chemical group 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- TYFQFVWCELRYAO-UHFFFAOYSA-L suberate(2-) Chemical compound [O-]C(=O)CCCCCCC([O-])=O TYFQFVWCELRYAO-UHFFFAOYSA-L 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- 238000003419 tautomerization reaction Methods 0.000 description 1
- CMIBWIAICVBURI-UHFFFAOYSA-N tert-butyl 3-aminopyrrolidine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCC(N)C1 CMIBWIAICVBURI-UHFFFAOYSA-N 0.000 description 1
- JSOMVCDXPUXKIC-UHFFFAOYSA-N tert-butyl 3-oxopyrrolidine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCC(=O)C1 JSOMVCDXPUXKIC-UHFFFAOYSA-N 0.000 description 1
- 108091008743 testicular receptors 4 Proteins 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000000147 tetrahydroquinolinyl group Chemical group N1(CCCC2=CC=CC=C12)* 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000001984 thiazolidinyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000005985 thienyl[1,3]dithianyl group Chemical group 0.000 description 1
- 238000011200 topical administration Methods 0.000 description 1
- NNBZCPXTIHJBJL-UHFFFAOYSA-N trans-decahydronaphthalene Natural products C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 1
- NNBZCPXTIHJBJL-MGCOHNPYSA-N trans-decalin Chemical compound C1CCC[C@@H]2CCCC[C@H]21 NNBZCPXTIHJBJL-MGCOHNPYSA-N 0.000 description 1
- 230000002103 transcriptional effect Effects 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- DBGVGMSCBYYSLD-UHFFFAOYSA-N tributylstannane Chemical compound CCCC[SnH](CCCC)CCCC DBGVGMSCBYYSLD-UHFFFAOYSA-N 0.000 description 1
- 125000003866 trichloromethyl group Chemical group ClC(Cl)(Cl)* 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- 125000005580 triphenylene group Chemical group 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- 229910000404 tripotassium phosphate Inorganic materials 0.000 description 1
- 125000005455 trithianyl group Chemical group 0.000 description 1
- 230000004614 tumor growth Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- ZDPHROOEEOARMN-UHFFFAOYSA-N undecanoic acid Chemical compound CCCCCCCCCCC(O)=O ZDPHROOEEOARMN-UHFFFAOYSA-N 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 229940071104 xylenesulfonate Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D519/00—Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/12—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains three hetero rings
- C07D471/20—Spiro-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/12—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains three hetero rings
- C07D491/20—Spiro-condensed systems
Definitions
- a new cancer treatment paradigm has emerged that harnesses the patient's own immune system to overcome immunoevasive strategies utilized by many cancers and to enhance anti-tumor immunity.
- One such strategy is to inhibit negative regulators of immune responses that normally function to maintain peripheral tolerance, allowing tumor antigens to be recognized as non-self entities.
- HPK1 The hematopoietic progenitor kinase 1 (HPK1) is an example of a negative regulator of dendritic cell activation, and T and B cell responses that can be targeted to enhance anti-tumor immunity.
- HPK1 is expressed predominantly by hematopoietic cells, including early progenitors.
- T cells it is believed that HPK1 negatively regulates T cell activation by reducing the persistence of signaling microclusters by phosphorylating SLP76 at Ser376 and Gads at Thr254, which leads to the recruitment of 14-3-3 proteins that bind to the phosphorylated SLP76 and Gads, releasing the SLP76-Gads-14-3-3 complex from LAT-containing microclusters.
- HPK1 can also become activated in response to prostaglandin E2, which is often secreted by tumors, contributing to the escape of tumor cells from the immune system.
- the compound is of Formula (II) :
- the compound is of Formula (IIIa) , (IIIb) , (IIIc) , or (IIId) :
- the compound is of Formula (IV) :
- HPK1-mediated disorder is a proliferative disorder.
- the proliferative disorder is cancer.
- the proliferative disorder is associated with one or more activating mutations in HPK1.
- the HPK1-mediated disorder is a chronic viral infection.
- Cyano refers to -CN.
- the alkyl is a C 1 - 3 alkyl.
- an alkyl group may be optionally substituted, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like.
- the alkyl is optionally substituted with oxo, halogen, -CN, -COOH, -COOMe, -OH, -OMe, -NH 2 , or -NO 2 .
- the alkyl is optionally substituted with halogen, -CN, -OH, or -OMe.
- the alkyl is optionally substituted with halogen.
- an alkenyl group may be optionally substituted, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like.
- the alkenyl is optionally substituted with oxo, halogen, -CN, -COOH, -COOMe, -OH, -OMe, -NH 2 , or -NO 2 .
- the alkenyl is optionally substituted with halogen, -CN, -OH, or -OMe.
- the alkenyl is optionally substituted with halogen.
- Alkylene refers to a straight or branched divalent hydrocarbon chain. Unless stated otherwise specifically in the specification, an alkylene group may be optionally substituted, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, the alkylene is optionally substituted with oxo, halogen, -CN, -COOH, COOMe, -OH, -OMe, -NH 2 , or -NO 2 . In some embodiments, the alkylene is optionally substituted with halogen, -CN, -OH, or -OMe. In some embodiments, the alkylene is optionally substituted with halogen.
- an aryl may be optionally substituted, for example, with halogen, amino, nitrile, nitro, hydroxyl, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like.
- the aryl is optionally substituted with halogen, methyl, ethyl, -CN, -COOH, COOMe, -CF 3 , -OH, -OMe, -NH 2 , or -NO 2 .
- Aminoalkyl refers to an alkyl radical, as defined above, that is substituted by one or more amines. In some embodiments, the alkyl is substituted with one amine. In some embodiments, the alkyl is substituted with one, two, or three amines. Aminoalkyl include, for example, aminomethyl, aminoethyl, aminopropyl, aminobutyl, or aminopentyl. In some embodiments, the aminoalkyl is aminomethyl.
- Heteroalkyl refers to an alkyl group in which one or more skeletal atoms of the alkyl are selected from an atom other than carbon, e.g., oxygen, nitrogen (e.g., -NH-, -N (alkyl) -) , sulfur, phosphorus, or combinations thereof.
- a heteroalkyl is attached to the rest of the molecule at a carbon atom of the heteroalkyl.
- a heteroalkyl is a C 1 -C 6 heteroalkyl wherein the heteroalkyl is comprised of 1 to 6 carbon atoms and one or more atoms other than carbon, e.g., oxygen, nitrogen (e.g.
- heteroalkyl is attached to the rest of the molecule at a carbon atom of the heteroalkyl.
- heteroalkyl are, for example, -CH 2 OCH 3 , -CH 2 CH 2 OCH 3 , -CH 2 CH 2 OCH 2 CH 2 OCH 3 , -CH (CH 3 ) OCH 3 , -CH 2 NHCH 3 , -CH 2 N (CH 3 ) 2 , -CH 2 CH 2 NHCH 3 , or -CH 2 CH 2 N (CH 3 ) 2 .
- the heterocycloalkyl is a 3-to 7-membered heterocycloalkenyl. In some embodiments, the heterocycloalkyl is a 3-to 6-membered heterocycloalkenyl. In some embodiments, the heterocycloalkyl is a 4-to 6-membered heterocycloalkenyl. In some embodiments, the heterocycloalkyl is a 5-to 6-membered heterocycloalkenyl.
- each R 6 is independently hydrogen, halogen, -CN, -OH, -OR a , -NR c R d , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, C 1 -C 6 aminoalkyl, C 1 -C 6 heteroalkyl, cycloalkyl, or heterocycloalkyl; and
- R X3 is imidazopyrazinyl optionally substituted with one or more R X3a .
- R X3 is imidazo [1, 2-a] pyrazinyl optionally substituted with one or more R X3a .
- each R X3a is independently halogen, -CN, -OH, -OR a , -SH, -SR a , -SF 3 , -SF 5 , -NR c R d , C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl.
- each R X3a is independently halogen or C 1 -C 6 alkyl.
- each R 8 is independently halogen, -CN, -OH, -OR a , -SH, -SR a , -SF 3 , -SF 5 , -NR c R d , C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl.
- R 3 is hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) - (IIId) , R 3 is hydrogen, C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl.
- R X3 is imidazopyridinyl substituted with one or more R X3a . In some embodiments of a compound of Formula (I) or (IV) , R X3 is imidazo [1, 2-a] pyridinyl substituted with one or more R X3a .
- R X3 is each optionally substituted with one or more R X3a .
- R X3 is optionally substituted with one or more R X3a . In some embodiments of a compound of Formula (I) or (IV) , R X3 is optionally substituted with one or more R X3a .
- each R X3a is independently halogen, -CN, -OH, -OR a , -SH, -SR a , -SF 3 , -SF 5 , -NR c R d , C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl.
- each R X3a is independently halogen, -CN, -OH, -OR a , -NR c R d , C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl.
- each R X3a is independently halogen, C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl. In some embodiments of a compound of Formula (I) or (IV) , each R X3a is independently halogen or C 1 -C 6 alkyl. In some embodiments of a compound of Formula (I) or (IV) , each R X3a is independently halogen. In some embodiments of a compound of Formula (I) or (IV) , each R X3a is independently C 1 -C 6 alkyl.
- the compound is of Formula (IVa) :
- Ring B is cycloalkyl, heterocycloalkyl, aryl, or heteroaryl;
- n 0, 1, 2, 3, or 4.
- a compound of Formula (IVa) is In some embodiments of a compound of Formula (IVa) , is
- Ring B is 5-or 6-membered cycloalkyl, 5-to 9-membered heterocycloalkyl, phenyl, or 5-to 9-membered heteroaryl.
- Ring B is cycloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-or 6-membered cycloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is cyclohexenyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is heterocycloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-to 9-membered heterocycloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is aryl.
- Ring B is 6-to 10-membered aryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is phenyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-to 10-membered heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-to 9-membered heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-to 10-membered heteroaryl.
- Ring B is 5-or 6-membered heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 9-or 10-membered heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 9-membered heteroaryl.
- Ring B is a monocyclic heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is a bicyclic heteroaryl.
- Ring B is imidazopyridinyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is imidazo [1, 2-a] pyridinyl.
- Ring B is imidazopyridinyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is imidazo [1, 2-a] pyridinyl.
- Ring B is imidazopyrazinyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is imidazo [1, 2-a] pyrazinyl.
- Ring B is In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is
- each R 8 is independently halogen, -CN, -OH, -OR a , -SH, -SR a , -SF 3 , -SF 5 , -NR c R d , C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl.
- each R 8 is independently halogen, -CN, -OH, -OR a , -NR c R d , C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl.
- each R 8 is independently halogen, C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , each R 8 is independently halogen or C 1 -C 6 alkyl. In some embodiments of a compound of Formula (IV) or (IVa) , each R 8 is independently halogen. In some embodiments of a compound of Formula (IV) or (IVa) , each R 8 is independently C 1 -C 6 alkyl.
- X 4 is N. In some embodiments of a compound of Formula (I) , (IV) , or (IVa) , X 4 is CR X4 .
- R X4 is hydrogen
- Ring A is heterocycloalkyl.
- Ring A is 5-or 6-membered heterocycloalkyl comprising 1 or 2 heteroatoms selected from the group consisting of O and N.
- Ring A is tetrahydrofuranyl or tetrahydropyranyl.
- Ring A is piperidinyl, tetrahydrofuranyl, or tetrahydropyranyl.
- Ring A is tetrahydropyranyl.
- Ring A is piperidinyl.
- each R 1 is independently halogen, -CN, -OH, -OR a , -NR c R d , C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl.
- n is 0, 1, or 2. In some embodiments of a compound of Formula (I) , (II) , (IIa) -(IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , n is 0.
- n is 3.
- W is -NR W1 -. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , W is -C (R W2 ) 2 -.
- R W1 is C 1 -C 6 alkyl optionally substituted with one or more R W1a .
- each R W2 are independently hydrogen, halogen, C 1 -C 6 alkyl, or C 1 -C 6 haloalkyl.
- each R W2 are independently hydrogen, halogen, or C 1 -C 6 alkyl.
- each R W2 are independently hydrogen or halogen. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R W2 are independently hydrogen or C 1 -C 6 alkyl.
- R Y1 is hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, C 1 -C 6 aminoalkyl, cycloalkyl, or heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R Y1a .
- R 1’ is C 1 -C 6 alkyl.
- Z 2 is CR Z2 .
- X 2 is CR X2 .
- X 2 is N.
- R X2 is hydrogen, halogen, -OH, -OR a , -NR c R d , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, cycloalkyl, or heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R X2a .
- R X2 is hydrogen, halogen, -OH, -OR a , -NR c R d , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, cycloalkyl, or heterocycloalkyl.
- R X2 is hydrogen, C 1 -C 6 alkyl, or cycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R X2 is C 1 -C 6 alkyl or cycloalkyl.
- R X2 is hydrogen.
- R X2 is aryl optionally substituted with one or more R X2a .
- each R a is independently C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, C 1 -C 6 aminoalkyl, C 1 -C 6 heteroalkyl, cycloalkyl, heterocycloalkyl, C 1 -C 6 alkylene (cycloalkyl) , or C 1 -C 6 alkylene (heterocycloalkyl) , wherein each alkyl, alkylene, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R.
- each R a is independently C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, or cycloalkyl. In some embodiments of a compound disclosed herein, each R a is independently C 1 -C 6 alkyl or cycloalkyl. In some embodiments of a compound disclosed herein, each R a is independently C 1 -C 6 alkyl. In some embodiments of a compound disclosed herein, each R a is independently cycloalkyl.
- each R b is independently hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, C 1 -C 6 aminoalkyl, C 1 -C 6 heteroalkyl, cycloalkyl, heterocycloalkyl, C 1 -C 6 alkylene (cycloalkyl) , or C 1 -C 6 alkylene (heterocycloalkyl) , wherein each alkyl, alkylene, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R.
- each R b is independently hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, C 1 -C 6 aminoalkyl, C 1 -C 6 heteroalkyl, cycloalkyl, or heterocycloalkyl, wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R.
- each R b is independently hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, cycloalkyl, or heterocycloalkyl, wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R.
- each R b is independently hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, cycloalkyl, or heterocycloalkyl.
- each R b is independently hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, or cycloalkyl. In some embodiments of a compound disclosed herein, each R b is independently hydrogen, C 1 -C 6 alkyl, or cycloalkyl. In some embodiments of a compound disclosed herein, each R b is independently hydrogen or C 1 -C 6 alkyl. In some embodiments of a compound disclosed herein, each R b is hydrogen. In some embodiments of a compound disclosed herein, each R b is independently C 1 -C 6 alkyl.
- R c and R d are each independently hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, C 1 -C 6 aminoalkyl, C 1 -C 6 heteroalkyl, cycloalkyl, heterocycloalkyl, C 1 -C 6 alkylene (cycloalkyl) , or C 1 -C 6 alkylene (heterocycloalkyl) , wherein each alkyl, alkylene, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R.
- R c and R d are each independently hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, C 1 -C 6 aminoalkyl, C 1 -C 6 heteroalkyl, cycloalkyl, or heterocycloalkyl, wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R.
- R c and R d are taken together with the atom to which they are attached to form a heterocycloalkyl optionally substituted with one or more R.
- each R is independently halogen, -CN, -OH, -OCF 3 , -OCClF 2 , -NH 2 , -NHC 1 -C 3 alkyl, -N (C 1 -C 3 alkyl) 2 , C 1 -C 6 alkyl, C 1 -C 6 alkoxy, or C 1 -C 6 haloalkyl.
- each R is independently halogen, -CN, -OH, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, or C 1 -C 6 haloalkyl.
- two R on the same atom form an oxo. In some embodiments of a compound disclosed herein, two R on the same carbon are taken together to form a cycloalkyl or heterocycloalkyl. In some embodiments of a compound disclosed herein, two R on the different atoms are taken together to form a cycloalkyl, heterocycloalkyl, aryl, or heteroaryl.
- one or more 1 H are replaced with one or more deuteriums in one or more of the following groups R, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R W1 , R W2 , R W1a , R Y1 , R Y2 , R Y1a , R Z1 , R Z2 , R Z3 , R X1 , R X2 , R X2a , R X3 , R X3a , R X4 , R a , R b , R c , and R d .
- the abundance of deuterium in each of R, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R W1 , R W2 , R W1a , R Y1 , R Y2 , R Y1a , R Z1 , R Z2 , R Z3 , R X1 , R X2 , R X2a , R X3 , R X3a , R X4 , R a , R b , R c , and R d is independently at least 1%, at least 10%, at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, or 100%of by molar.
- one or more 1 H of Ring A and Ring B are replaced with one or more deuteriums.
- the compound disclosed herein, or a pharmaceutically acceptable salt thereof is one of the compounds in Table 2.
- the compounds described herein exist as their pharmaceutically acceptable salts.
- the methods disclosed herein include methods of treating diseases by administering such pharmaceutically acceptable salts.
- the methods disclosed herein include methods of treating diseases by administering such pharmaceutically acceptable salts as pharmaceutical compositions.
- the compounds described herein possess acidic or basic groups and therefore react with any of a number of inorganic or organic bases, and inorganic and organic acids, to form a pharmaceutically acceptable salt.
- these salts are prepared in situ during the final isolation and purification of the compounds disclosed herein thereof, or by separately reacting a purified compound in its free form with a suitable acid or base, and isolating the salt thus formed.
- Examples of pharmaceutically acceptable salts include those salts prepared by reaction of the compounds described herein with a mineral, organic acid or inorganic base, such salts including, acetate, acrylate, adipate, alginate, aspartate, benzoate, benzenesulfonate, bisulfate, bisulfite, bromide, butyrate, butyn-1, 4-dioate, camphorate, camphorsulfonate, caproate, caprylate, chlorobenzoate, chloride, citrate, cyclopentanepropionate, decanoate, digluconate, dihydrogenphosphate, dinitrobenzoate, dodecylsulfate, ethanesulfonate, formate, fumarate, glucoheptanoate, glycerophosphate, glycolate, hemisulfate, heptanoate, hexanoate, hexyne-1, 6-dioate, hydroxybenzoate,
- the compounds described herein can be prepared as pharmaceutically acceptable salts formed by reacting the free base form of the compound with a pharmaceutically acceptable inorganic or organic acid, including, but not limited to, inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid metaphosphoric acid, and the like; and organic acids such as acetic acid, propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, p-toluenesulfonic acid, tartaric acid, trifluoroacetic acid, citric acid, benzoic acid, 3- (4-hydroxybenzoyl) benzoic acid, cinnamic acid, mandelic acid, arylsulfonic acid, methanesulfonic acid, ethanesulfonic acid, 1, 2-ethanedis
- those compounds described herein which comprise a free acid group react with a suitable base, such as the hydroxide, carbonate, bicarbonate, sulfate, of a pharmaceutically acceptable metal cation, with ammonia, or with a pharmaceutically acceptable organic primary, secondary, tertiary, or quaternary amine.
- a suitable base such as the hydroxide, carbonate, bicarbonate, sulfate, of a pharmaceutically acceptable metal cation, with ammonia, or with a pharmaceutically acceptable organic primary, secondary, tertiary, or quaternary amine.
- Representative salts include the alkali or alkaline earth salts, like lithium, sodium, potassium, calcium, and magnesium, and aluminum salts and the like.
- bases include sodium hydroxide, potassium hydroxide, choline hydroxide, sodium carbonate, N + (C 1-4 alkyl) 4 , and the like.
- Tautomers are compounds that are interconvertible by migration of a hydrogen atom, accompanied by a switch of a single bond and adjacent double bond. In bonding arrangements where tautomerization is possible, a chemical equilibrium of the tautomers will exist. All tautomeric forms of the compounds disclosed herein are contemplated. The exact ratio of the tautomers depends on several factors, including temperature, solvent, and pH.
- Step 1 8- ( (diphenylmethylene) amino) -5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one
- Step 2 8-amino-5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one
- Step 1 5-bis (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2-chloro-6- (4-methoxybenzyl) -5, 6-dihydro-7H-pyrrolo [3, 4-b] pyridin-7-one
- Step 3 (2-chloro-6- (4-methoxybenzyl) -7-oxo-6, 7-dihydro-5H-pyrrolo [3, 4-b] pyridine-5, 5-diyl) bis (ethane-2, 1-diyl) dimethanesulfonate
- Step 1 5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -8- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one
- Step 2 tert-butyl 7- ( (1'- (2- (dimethylamino) ethyl) -2'-oxo-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
- Step 3 1'- (2- (dimethylamino) ethyl) -6'- ( (7- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -3-oxoisoindolin-4-yl) amino) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one
- Step 2 N- (3- (6-cyano-5- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) pyridin-2-yl) cyclohexan-1-yl) benzamide
- Step 3 6- (5-benzamidocyclohex-1-en-1-yl) -3- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) picolinamide
- Step 1 N- (3- (6-cyano-5- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) pyridin-2-yl) cyclohexan-1-yl) benzamide
- Step 2 6- (5-benzamidocyclohex-1-en-1-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
- Step 5 tert-butyl 7- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
- reaction mixture was purged with N 2 for 3 mins and stirred at 130 °C under N 2 for 3 hrs. After cooling to room temperature, the reaction mixture was poured into 10 mL of water and extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na 2 SO 4 , filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 9%) in dichloromethane to afford 8-5 (42 mg, 62.6%yield) .
- LC-MS (ESI+) m/z 642.4 (M+H) + .
- Step 6 7- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) isoindolin-1-one
- Step 3 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (1'- (2- (methylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) isoindolin-1-one
- Step 7 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (1-methylpyrrolidin-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
- Step 4 4- (imidazo [1, 2-a] pyrazin-3-yl) -7- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
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Abstract
Described herein are spirocyclic HPK1inhibitors and pharmaceutical compositions comprising said inhibitors. The subject compounds and compositions are useful for the treatment of a disease or disorder associated with HPK1.
Description
CROSS-REFERENCE
This patent application claims the benefit of International Application No. PCT/CN2022/141917, filed December 26, 2022; International Application No. PCT/CN2023/108445, filed July 20, 2023; and International Application No. PCT/CN2023/133756, filed November 23, 2023; and which are incorporated herein by reference in their entirety.
A new cancer treatment paradigm has emerged that harnesses the patient's own immune system to overcome immunoevasive strategies utilized by many cancers and to enhance anti-tumor immunity. One such strategy is to inhibit negative regulators of immune responses that normally function to maintain peripheral tolerance, allowing tumor antigens to be recognized as non-self entities.
The hematopoietic progenitor kinase 1 (HPK1) is an example of a negative regulator of dendritic cell activation, and T and B cell responses that can be targeted to enhance anti-tumor immunity. HPK1 is expressed predominantly by hematopoietic cells, including early progenitors. In T cells, it is believed that HPK1 negatively regulates T cell activation by reducing the persistence of signaling microclusters by phosphorylating SLP76 at Ser376 and Gads at Thr254, which leads to the recruitment of 14-3-3 proteins that bind to the phosphorylated SLP76 and Gads, releasing the SLP76-Gads-14-3-3 complex from LAT-containing microclusters. HPK1 can also become activated in response to prostaglandin E2, which is often secreted by tumors, contributing to the escape of tumor cells from the immune system.
There is a need for novel and potent HPK1 antagonists.
Disclosed herein is a compound of Formula (I) , or a pharmaceutically acceptable salt thereof:
Formula (I) as disclosed herein.
In some embodiments of a compound of Formula (I) , the compound is of Formula (II) :
Formula (II) as disclosed herein.
In some embodiments of a compound of Formula (I) or (II) , the compound is of Formula (IIa) , (IIb) , (IIc) , or (IId) :
In some embodiments of a compound of Formula (I) or (II) , the compound is of Formula (III) :
Formula (III) as disclosed herein.
In some embodiments of a compound of Formula (I) or (III) , the compound is of Formula (IIIa) , (IIIb) , (IIIc) , or (IIId) :
In some embodiments of a compound of Formula (I) , the compound is of Formula (IV) :
Formula (IV) as disclosed herein.
In some embodiments of a compound of Formula (I) or (IV) , the compound is of Formula (IVa) :
Formula (IVa) as disclosed herein.
Also disclosed herein is a pharmaceutical composition comprising a compound disclosed herein, or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable excipient.
Also disclosed herein is a method of treating a HPK1-mediated disorder in a patient comprising administering to said patient a compound disclosed herein, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition disclosed herein. In some embodiments, the HPK1-mediated disorder is a proliferative disorder. In some embodiments, the proliferative disorder is cancer. In some embodiments, the proliferative disorder is associated with one or more activating mutations in HPK1. In some embodiments, the HPK1-mediated disorder is a chronic viral infection.
Also disclosed herein is a method of increasing the efficacy of vaccination in a patient comprising administering to said patient a compound disclosed herein, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition disclosed herein.
INCORPORATION BY REFERENCE
All publications, patents, and patent applications mentioned in this specification are herein incorporated by reference to the same extent as if each individual publication, patent, or patent application was specifically and individually indicated to be incorporated by reference.
Definitions
In the following description, certain specific details are set forth in order to provide a thorough understanding of various embodiments. However, one skilled in the art will understand that the invention may be practiced without these details. In other instances, well-known structures have not been shown or described in detail to avoid unnecessarily obscuring descriptions of the embodiments. Unless the context requires otherwise, throughout the specification and claims which follow, the word “comprise” and variations thereof, such as, “comprises” and “comprising” are to be construed in an open, inclusive sense, that is, as “including, but not limited to. ” Further, headings provided herein are for convenience only and do not interpret the scope or meaning of the claimed invention.
Reference throughout this specification to “some embodiments” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Also, as used in this specification and the appended claims, the singular forms “a, ” “an, ” and “the” include plural referents unless the content clearly dictates otherwise. It should also be noted that the term “or” is generally employed in its sense including “and/or” unless the content clearly dictates otherwise.
The terms below, as used herein, have the following meanings, unless indicated otherwise:
“oxo” refers to =O.
“Carboxyl” refers to -COOH.
“Cyano” refers to -CN.
“Alkyl” refers to a straight-chain, or branched-chain saturated hydrocarbon monoradical having from one to about ten carbon atoms, more preferably one to six carbon atoms. Examples include, but are not limited to methyl, ethyl, n-propyl, isopropyl, 2-methyl-1-propyl, 2-methyl-2-propyl, 2-methyl-1-butyl, 3-methyl-1-butyl, 2-methyl-3-butyl, 2, 2-dimethyl-1-propyl, 2-methyl-1-pentyl, 3-methyl-1-pentyl, 4-methyl-1-pentyl, 2-methyl-2-pentyl, 3-methyl-2-pentyl, 4-methyl-2-pentyl, 2, 2-dimethyl-1-butyl, 3, 3-dimethyl-1-butyl, 2-ethyl-1-butyl, n-butyl, isobutyl, sec-butyl, t-butyl, n-pentyl, isopentyl, neopentyl, tert-amyl and hexyl, and longer alkyl groups, such as heptyl, octyl and the like. Whenever it appears herein, a numerical range such as “C1-C6 alkyl” or “C1-6alkyl” , means that the alkyl group may consist of 1 carbon atom, 2 carbon atoms, 3 carbon atoms, 4 carbon atoms, 5 carbon atoms or 6 carbon atoms, although the present definition also covers the occurrence of the term “alkyl” where no numerical range is designated. In some embodiments, the alkyl is a C1-10alkyl. In some embodiments, the alkyl is a C1-6alkyl. In some embodiments, the alkyl is a C1-5alkyl. In some embodiments, the alkyl is a C1-4alkyl. In some embodiments, the alkyl is a C1-3alkyl. Unless stated otherwise specifically in the specification, an alkyl group may be optionally substituted, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, the alkyl is optionally substituted with oxo, halogen, -CN, -COOH, -COOMe, -OH, -OMe, -NH2, or -NO2. In some embodiments, the alkyl is optionally substituted with halogen, -CN, -OH, or -OMe. In some embodiments, the alkyl is optionally substituted with halogen.
“Alkenyl” refers to a straight-chain, or branched-chain hydrocarbon monoradical having one or more carbon-carbon double-bonds and having from two to about ten carbon atoms, more preferably two to about six carbon atoms. The group may be in either the cis or trans conformation about the double bond (s) , and should be understood to include both isomers. Examples include, but are not limited to ethenyl (-CH=CH2) , 1-propenyl (-CH2CH=CH2) , isopropenyl [-C (CH3) =CH2] , butenyl, 1, 3-butadienyl and the like. Whenever it appears herein, a numerical range such as “C2-C6 alkenyl” or “C2-6alkenyl” , means that the alkenyl group may consist of 2 carbon atoms, 3 carbon atoms, 4 carbon atoms, 5 carbon
atoms or 6 carbon atoms, although the present definition also covers the occurrence of the term “alkenyl” where no numerical range is designated. Unless stated otherwise specifically in the specification, an alkenyl group may be optionally substituted, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, the alkenyl is optionally substituted with oxo, halogen, -CN, -COOH, -COOMe, -OH, -OMe, -NH2, or -NO2. In some embodiments, the alkenyl is optionally substituted with halogen, -CN, -OH, or -OMe. In some embodiments, the alkenyl is optionally substituted with halogen.
“Alkynyl” refers to a straight-chain or branched-chain hydrocarbon monoradical having one or more carbon-carbon triple-bonds and having from two to about ten carbon atoms, more preferably from two to about six carbon atoms. Examples include, but are not limited to ethynyl, 2-propynyl, 2-butynyl, 1, 3-butadiynyl and the like. Whenever it appears herein, a numerical range such as “C2-C6 alkynyl” or “C2-6alkynyl” , means that the alkynyl group may consist of 2 carbon atoms, 3 carbon atoms, 4 carbon atoms, 5 carbon atoms or 6 carbon atoms, although the present definition also covers the occurrence of the term “alkynyl” where no numerical range is designated. Unless stated otherwise specifically in the specification, an alkynyl group may be optionally substituted, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, the alkynyl is optionally substituted with oxo, halogen, -CN, -COOH, COOMe, -OH, -OMe, -NH2, or -NO2. In some embodiments, the alkynyl is optionally substituted with halogen, -CN, -OH, or -OMe. In some embodiments, the alkynyl is optionally substituted with halogen.
“Alkylene” refers to a straight or branched divalent hydrocarbon chain. Unless stated otherwise specifically in the specification, an alkylene group may be optionally substituted, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, the alkylene is optionally substituted with oxo, halogen, -CN, -COOH, COOMe, -OH, -OMe, -NH2, or -NO2. In some embodiments, the alkylene is optionally substituted with halogen, -CN, -OH, or -OMe. In some embodiments, the alkylene is optionally substituted with halogen.
“Alkoxy” refers to a radical of the formula -ORa where Ra is an alkyl radical as defined. Unless stated otherwise specifically in the specification, an alkoxy group may be optionally substituted, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, the alkoxy is optionally substituted with halogen, -CN, -COOH, COOMe, -OH, -OMe, -NH2, or -NO2. In some embodiments, the alkoxy is optionally substituted with halogen, -CN, -OH, or -OMe. In some embodiments, the alkoxy is optionally substituted with halogen.
“Aryl” refers to a radical derived from a hydrocarbon ring system comprising 6 to 30 carbon atoms and at least one aromatic ring. The aryl radical may be a monocyclic, bicyclic, tricyclic, or tetracyclic ring system, which may include fused (when fused with a cycloalkyl or heterocycloalkyl ring, the aryl is bonded through an aromatic ring atom) or bridged ring systems. In some embodiments, the
aryl is a 6-to 10-membered aryl. In some embodiments, the aryl is a 6-membered aryl (phenyl) . Aryl radicals include, but are not limited to, aryl radicals derived from the hydrocarbon ring systems of anthrylene, naphthylene, phenanthrylene, anthracene, azulene, benzene, chrysene, fluoranthene, fluorene, as-indacene, s-indacene, indane, indene, naphthalene, phenalene, phenanthrene, pleiadene, pyrene, and triphenylene. Unless stated otherwise specifically in the specification, an aryl may be optionally substituted, for example, with halogen, amino, nitrile, nitro, hydroxyl, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, the aryl is optionally substituted with halogen, methyl, ethyl, -CN, -COOH, COOMe, -CF3, -OH, -OMe, -NH2, or -NO2. In some embodiments, the aryl is optionally substituted with halogen, methyl, ethyl, -CN, -CF3, -OH, or -OMe. In some embodiments, the aryl is optionally substituted with halogen.
“Cycloalkyl” refers to a partially or fully saturated, monocyclic, or polycyclic carbocyclic ring, which may include fused (when fused with an aryl or a heteroaryl ring, the cycloalkyl is bonded through a non-aromatic ring atom) , spiro, or bridged ring systems. In some embodiments, the cycloalkyl is fully saturated. Representative cycloalkyls include, but are not limited to, cycloalkyls having from three to fifteen carbon atoms (C3-C15 fully saturated cycloalkyl or C3-C15 cycloalkenyl) , from three to ten carbon atoms (C3-C10 fully saturated cycloalkyl or C3-C10 cycloalkenyl) , from three to eight carbon atoms (C3-C8 fully saturated cycloalkyl or C3-C8 cycloalkenyl) , from three to six carbon atoms (C3-C6 fully saturated cycloalkyl or C3-C6 cycloalkenyl) , from three to five carbon atoms (C3-C5 fully saturated cycloalkyl or C3-C5 cycloalkenyl) , or three to four carbon atoms (C3-C4 fully saturated cycloalkyl or C3-C4 cycloalkenyl) . In some embodiments, the cycloalkyl is a 3-to 10-membered fully saturated cycloalkyl or a 3-to 10-membered cycloalkenyl. In some embodiments, the cycloalkyl is a 3-to 6-membered fully saturated cycloalkyl or a 3-to 6-membered cycloalkenyl. In some embodiments, the cycloalkyl is a 5-to 6-membered fully saturated cycloalkyl or a 5-to 6-membered cycloalkenyl. Monocyclic cycloalkyls include, for example, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, and cyclooctyl. Polycyclic cycloalkyls include, for example, adamantyl, norbornyl, decalinyl, bicyclo [3.3.0] octane, bicyclo [4.3.0] nonane, cis-decalin, trans-decalin, bicyclo [2.1.1] hexane, bicyclo [2.2.1] heptane, bicyclo [2.2.2] octane, bicyclo [3.2.2] nonane, and bicyclo [3.3.2] decane, and 7, 7-dimethyl-bicyclo [2.2.1] heptanyl. Partially saturated cycloalkyls include, for example cyclopentenyl, cyclohexenyl, cycloheptenyl, and cyclooctenyl. Unless stated otherwise specifically in the specification, a cycloalkyl is optionally substituted, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, a cycloalkyl is optionally substituted with oxo, halogen, methyl, ethyl, -CN, -COOH, COOMe, -CF3, -OH, -OMe, -NH2, or -NO2. In some embodiments, a cycloalkyl is optionally substituted with oxo, halogen, methyl, ethyl, -CN, -CF3, -OH, or -OMe. In some embodiments, the cycloalkyl is optionally substituted with halogen.
“Halo” or “halogen” refers to bromo, chloro, fluoro or iodo. In some embodiments, halogen is fluoro or chloro. In some embodiments, halogen is fluoro.
“Haloalkyl” refers to an alkyl radical, as defined above, that is substituted by one or more halo radicals, as defined above, e.g., trifluoromethyl, difluoromethyl, fluoromethyl, fluorochloromethyl, difluorochloromethyl, trichloromethyl, 2, 2, 2-trifluoroethyl, 1, 2-difluoroethyl, 3-bromo-2-fluoropropyl, 1, 2-dibromoethyl, and the like.
“Hydroxyalkyl” refers to an alkyl radical, as defined above, that is substituted by one or more hydroxyls. In some embodiments, the alkyl is substituted with one hydroxyl. In some embodiments, the alkyl is substituted with one, two, or three hydroxyls. Hydroxyalkyl include, for example, hydroxymethyl, hydroxyethyl, hydroxypropyl, hydroxybutyl, or hydroxypentyl. In some embodiments, the hydroxyalkyl is hydroxymethyl.
“Aminoalkyl” refers to an alkyl radical, as defined above, that is substituted by one or more amines. In some embodiments, the alkyl is substituted with one amine. In some embodiments, the alkyl is substituted with one, two, or three amines. Aminoalkyl include, for example, aminomethyl, aminoethyl, aminopropyl, aminobutyl, or aminopentyl. In some embodiments, the aminoalkyl is aminomethyl.
“Heteroalkyl” refers to an alkyl group in which one or more skeletal atoms of the alkyl are selected from an atom other than carbon, e.g., oxygen, nitrogen (e.g., -NH-, -N (alkyl) -) , sulfur, phosphorus, or combinations thereof. A heteroalkyl is attached to the rest of the molecule at a carbon atom of the heteroalkyl. In one aspect, a heteroalkyl is a C1-C6 heteroalkyl wherein the heteroalkyl is comprised of 1 to 6 carbon atoms and one or more atoms other than carbon, e.g., oxygen, nitrogen (e.g. -NH-, -N (alkyl) -) , sulfur, phosphorus, or combinations thereof wherein the heteroalkyl is attached to the rest of the molecule at a carbon atom of the heteroalkyl. Examples of such heteroalkyl are, for example, -CH2OCH3, -CH2CH2OCH3, -CH2CH2OCH2CH2OCH3, -CH (CH3) OCH3, -CH2NHCH3, -CH2N (CH3) 2, -CH2CH2NHCH3, or -CH2CH2N (CH3) 2. Unless stated otherwise specifically in the specification, a heteroalkyl is optionally substituted for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, a heteroalkyl is optionally substituted with oxo, halogen, methyl, ethyl, -CN, -CF3, -OH, -OMe, -NH2, or -NO2. In some embodiments, a heteroalkyl is optionally substituted with oxo, halogen, methyl, ethyl, -CN, -CF3, -OH, or -OMe. In some embodiments, the heteroalkyl is optionally substituted with halogen.
“Heterocycloalkyl” refers to a 3-to 24-membered partially or fully saturated ring radical comprising 2 to 23 carbon atoms and from one to 8 heteroatoms selected from the group consisting of nitrogen, oxygen, phosphorous, silicon, and sulfur. In some embodiments, the heterocycloalkyl is fully saturated. In some embodiments, the heterocycloalkyl comprises one to three heteroatoms selected from the group consisting of nitrogen, oxygen, and sulfur. In some embodiments, the heterocycloalkyl comprises one to three heteroatoms selected from the group consisting of nitrogen and oxygen. In some embodiments, the heterocycloalkyl comprises one to three nitrogens. In some embodiments, the heterocycloalkyl comprises one or two nitrogens. In some embodiments, the heterocycloalkyl comprises one nitrogen. In some embodiments, the heterocycloalkyl comprises one nitrogen and one oxygen. Unless stated otherwise specifically in the specification, the heterocycloalkyl radical may be a
monocyclic, bicyclic, tricyclic, or tetracyclic ring system, which may include fused (when fused with an aryl or a heteroaryl ring, the heterocycloalkyl is bonded through a non-aromatic ring atom) , spiro, or bridged ring systems; and the nitrogen, carbon, or sulfur atoms in the heterocycloalkyl radical may be optionally oxidized; the nitrogen atom may be optionally quaternized. Representative heterocycloalkyls include, but are not limited to, heterocycloalkyls having from two to fifteen carbon atoms (C2-C15 fully saturated heterocycloalkyl or C2-C15 heterocycloalkenyl) , from two to ten carbon atoms (C2-C10 fully saturated heterocycloalkyl or C2-C10 heterocycloalkenyl) , from two to eight carbon atoms (C2-C8 fully saturated heterocycloalkyl or C2-C8 heterocycloalkenyl) , from two to seven carbon atoms (C2-C7 fully saturated heterocycloalkyl or C2-C7 heterocycloalkenyl) , from two to six carbon atoms (C2-C6 fully saturated heterocycloalkyl or C2-C6 heterocycloalkenyl) , from two to five carbon atoms (C2-C5 fully saturated heterocycloalkyl or C2-C5 heterocycloalkenyl) , or two to four carbon atoms (C2-C4 fully saturated heterocycloalkyl or C2-C4 heterocycloalkenyl) . Examples of such heterocycloalkyl radicals include, but are not limited to, aziridinyl, azetidinyl, oxetanyl, dioxolanyl, thienyl [1, 3] dithianyl, decahydroisoquinolyl, imidazolinyl, imidazolidinyl, isothiazolidinyl, isoxazolidinyl, morpholinyl, octahydroindolyl, octahydroisoindolyl, 2-oxopiperazinyl, 2-oxopiperidinyl, 2-oxopyrrolidinyl, oxazolidinyl, piperidinyl, piperazinyl, 4-piperidonyl, pyrrolidinyl, pyrazolidinyl, quinuclidinyl, thiazolidinyl, tetrahydrofuryl, trithianyl, tetrahydropyranyl, thiomorpholinyl, thiamorpholinyl, 1-oxo-thiomorpholinyl, 1, 1-dioxo-thiomorpholinyl, 1, 3-dihydroisobenzofuran-1-yl, 3-oxo-1, 3-dihydroisobenzofuran-1-yl, methyl-2-oxo-1, 3-dioxol-4-yl, and 2-oxo-1, 3-dioxol-4-yl. The term heterocycloalkyl also includes all ring forms of the carbohydrates, including but not limited to the monosaccharides, the disaccharides, and the oligosaccharides. In some embodiments, heterocycloalkyls have from 2 to 10 carbons in the ring. It is understood that when referring to the number of carbon atoms in a heterocycloalkyl, the number of carbon atoms in the heterocycloalkyl is not the same as the total number of atoms (including the heteroatoms) that make up the heterocycloalkyl (i.e. skeletal atoms of the heterocycloalkyl ring) . In some embodiments, the heterocycloalkyl is a 3-to 8-membered fully saturated heterocycloalkyl. In some embodiments, the heterocycloalkyl is a 3-to 7-membered fully saturated heterocycloalkyl. In some embodiments, the heterocycloalkyl is a 3-to 6-membered fully saturated heterocycloalkyl. In some embodiments, the heterocycloalkyl is a 4-to 6-membered fully saturated heterocycloalkyl. In some embodiments, the heterocycloalkyl is a 5-to 6-membered fully saturated heterocycloalkyl. In some embodiments, the heterocycloalkyl is a 3-to 8-membered heterocycloalkenyl. In some embodiments, the heterocycloalkyl is a 3-to 7-membered heterocycloalkenyl. In some embodiments, the heterocycloalkyl is a 3-to 6-membered heterocycloalkenyl. In some embodiments, the heterocycloalkyl is a 4-to 6-membered heterocycloalkenyl. In some embodiments, the heterocycloalkyl is a 5-to 6-membered heterocycloalkenyl. Unless stated otherwise specifically in the specification, a heterocycloalkyl may be optionally substituted as described below, for example, with oxo, halogen, amino, nitrile, nitro, hydroxyl, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, the heterocycloalkyl is optionally substituted with oxo, halogen, methyl, ethyl, -CN, -COOH, COOMe, -CF3, -OH, -OMe, -NH2,
or -NO2. In some embodiments, the heterocycloalkyl is optionally substituted with halogen, methyl, ethyl, -CN, -CF3, -OH, or -OMe. In some embodiments, the heterocycloalkyl is optionally substituted with halogen.
“Heteroaryl” refers to a 5-to 14-membered ring system radical comprising one to thirteen carbon atoms, one to six heteroatoms selected from the group consisting of nitrogen, oxygen, phosphorous, and sulfur, and at least one aromatic ring. In some embodiments, the heteroaryl comprises one to three heteroatoms selected from the group consisting of nitrogen, oxygen, and sulfur. In some embodiments, the heteroaryl comprises one to three heteroatoms selected from the group consisting of nitrogen and oxygen. In some embodiments, the heteroaryl comprises one to three nitrogens. In some embodiments, the heteroaryl comprises one or two nitrogens. In some embodiments, the heteroaryl comprises one nitrogen. The heteroaryl radical may be a monocyclic, bicyclic, tricyclic, or tetracyclic ring system, which may include fused (when fused with a cycloalkyl or heterocycloalkyl ring, the heteroaryl is bonded through an aromatic ring atom) or bridged ring systems; and the nitrogen, carbon, or sulfur atoms in the heteroaryl radical may be optionally oxidized; the nitrogen atom may be optionally quaternized. In some embodiments, the heteroaryl is a 5-to 10-membered heteroaryl. In some embodiments, the heteroaryl is a 5-to 6-membered heteroaryl. In some embodiments, the heteroaryl is a 6-membered heteroaryl. In some embodiments, the heteroaryl is a 5-membered heteroaryl. Examples include, but are not limited to, azepinyl, acridinyl, benzimidazolyl, benzothiazolyl, benzindolyl, benzodioxolyl, benzofuranyl, benzooxazolyl, benzothiazolyl, benzothiadiazolyl, benzo [b] [1, 4] dioxepinyl, 1, 4-benzodioxanyl, benzonaphthofuranyl, benzoxazolyl, benzodioxolyl, benzodioxinyl, benzopyranyl, benzopyranonyl, benzofuranyl, benzofuranonyl, benzothienyl (benzothiophenyl) , benzotriazolyl, benzo [4, 6] imidazo [1, 2-a] pyridinyl, carbazolyl, cinnolinyl, dibenzofuranyl, dibenzothiophenyl, furanyl, furanonyl, isothiazolyl, imidazolyl, indazolyl, indolyl, isoindolyl, indolinyl, isoindolinyl, isoquinolyl, indolizinyl, isoxazolyl, naphthyridinyl, oxadiazolyl, 2-oxoazepinyl, oxazolyl, oxiranyl, 1-oxidopyridinyl, 1-oxidopyrimidinyl, 1-oxidopyrazinyl, 1-oxidopyridazinyl, 1-phenyl-1H-pyrrolyl, phenazinyl, phenothiazinyl, phenoxazinyl, phthalazinyl, pteridinyl, purinyl, pyrrolyl, pyrazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, quinazolinyl, quinoxalinyl, quinolinyl, quinuclidinyl, isoquinolinyl, tetrahydroquinolinyl, thiazolyl, thiadiazolyl, triazolyl, tetrazolyl, triazinyl, and thiophenyl (i.e., thienyl) . Unless stated otherwise specifically in the specification, a heteroaryl may be optionally substituted, for example, with halogen, amino, nitrile, nitro, hydroxyl, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, carboxyl, carboxylate, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, and the like. In some embodiments, the heteroaryl is optionally substituted with halogen, methyl, ethyl, -CN, -COOH, COOMe, -CF3, -OH, -OMe, -NH2, or -NO2. In some embodiments, the heteroaryl is optionally substituted with halogen, methyl, ethyl, -CN, -CF3, -OH, or -OMe. In some embodiments, the heteroaryl is optionally substituted with halogen.
The term “optional” or “optionally” means that the subsequently described event or circumstance may or may not occur, and that the description includes instances where said event or circumstance occurs and instances in which it does not. For example, “optionally substituted alkyl”
means either “alkyl” or “substituted alkyl” as defined above. Further, an optionally substituted group may be un-substituted (e.g., -CH2CH3) , fully substituted (e.g., -CF2CF3) , mono-substituted (e.g., -CH2CH2F) or substituted at a level anywhere in-between fully substituted and mono-substituted (e.g., -CH2CHF2, -CH2CF3, -CF2CH3, -CFHCHF2, etc. ) . It will be understood by those skilled in the art with respect to any group containing one or more substituents that such groups are not intended to introduce any substitution or substitution patterns that are sterically impractical and/or synthetically non-feasible. Thus, any substituents described should generally be understood as having a maximum molecular weight of about 1,000 daltons, and more typically, up to about 500 daltons.
The term “one or more” when referring to an optional substituent means that the subject group is optionally substituted with one, two, three, four, or more substituents. In some embodiments, the subject group is optionally substituted with one, two, three or four substituents. In some embodiments, the subject group is optionally substituted with one, two, or three substituents. In some embodiments, the subject group is optionally substituted with one or two substituents. In some embodiments, the subject group is optionally substituted with one substituent. In some embodiments, the subject group is optionally substituted with two substituents.
An “effective amount” or “therapeutically effective amount” refers to an amount of a compound administered to a mammalian subject, either as a single dose or as part of a series of doses, which is effective to produce a desired therapeutic effect.
The terms “treat, ” “treating” or “treatment, ” as used herein, include alleviating, abating, or ameliorating at least one symptom of a disease or condition, preventing additional symptoms, inhibiting the disease or condition, e.g., arresting the development of the disease or condition, relieving the disease or condition, causing regression of the disease or condition, relieving a condition caused by the disease or condition, or stopping the symptoms of the disease or condition.
As used herein, a “disease or disorder associated with HPK1” or, alternatively, “aHPK1-mediated disease or disorder” means any disease or other deleterious condition in which HPK1, or a mutant thereof, is known or suspected to play a role.
As used herein, a “HPK1 antagonist” or a “HPK1 inhibitor” is a molecule that reduces, inhibits, or otherwise diminishes one or more of the biological activities of HPK1 (e.g., serine/threonine kinase activity, recruitment to the TCR complex upon TCR activation, interaction with a protein binding partner, such as SLP76) . Antagonism using the HPK1 antagonist does not necessarily indicate a total elimination of the HPK1 activity. Instead, the activity could decrease by a statistically significant amount including, for example, a decrease of at least about 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 95%or 100%of the activity of HPK1 compared to an appropriate control. In some embodiments, the HPK1 antagonist reduces, inhibits, or otherwise diminishes the serine/threonine kinase activity of HPK1. In some of these embodiments, the HPK1 antagonist reduces, inhibits, or otherwise diminishes the HPK1-mediated phosphorylation of SLP76 and/or Gads. The presently disclosed compounds bind directly to HPK1 and inhibit its kinase activity.
Compounds
Described herein are compounds, or a pharmaceutically acceptable salt thereof useful in the treatment of a disease or disorder associated with HPK1.
Disclosed herein is a compound of Formula (I) , or a pharmaceutically acceptable salt thereof:
wherein:
Ring A is cycloalkyl or heterocycloalkyl;
each R1 is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;
or two R1 on the same atom are taken together to form an oxo;
n is 0, 1, 2, 3, 4, 5, or 6;
W is -NRW1-, -C (RW2) 2-, or -C (=O) -;
RW1 is hydrogen, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RW1a;
each RW1a is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;
or two RW1a on the same atom are taken together to form an oxo;
each RW2 are independently hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
Y is -NRY1-, -C (RY2) 2-, or -C (=O) -;
RY1 is hydrogen, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RY1a;
each RY1a is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;
or two RY1a on the same atom are taken together to form an oxo;
each RY2 are independently hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
Z1 is N or CRZ1;
RZ1 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
Z2 is N or CRZ2;
RZ2 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
Z3 is N or CRZ3;
RZ3 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
L is -O-, -S-, or -NR2-;
R2 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
X1 is N or CRX1;
RX1 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
X2 is N or CRX2;
RX2 is hydrogen, halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX2a;
each RX2a is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;
or two RX2a on the same atom are taken together to form an oxo;
X3 is N or CRX3;
RX3 is hydrogen, halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX3a;
each RX3a is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;
or two RX3a on the same atom are taken together to form an oxo;
X4 is N or CRX4;
RX4 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
R3 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
R4 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
or RX4 and R4 are taken together to form a heterocycloalkyl or a heteroaryl; each optionally substituted with one or more R5;
each R5 is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;
or two R5 on the same atom are taken together to form an oxo;
each Ra is independently C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C1-
C6alkylene (cycloalkyl) , C1-C6alkylene (heterocycloalkyl) , C1-C6alkylene (aryl) , or C1-C6alkylene (heteroaryl) , wherein each alkyl, alkylene, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;
each Rb is independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C1-C6alkylene (cycloalkyl) , C1-C6alkylene (heterocycloalkyl) , C1-C6alkylene (aryl) , or C1-C6alkylene (heteroaryl) , wherein each alkyl, alkylene, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;
Rc and Rd are each independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C1-C6alkylene (cycloalkyl) , C1-C6alkylene (heterocycloalkyl) , C1-C6alkylene (aryl) , or C1-C6alkylene (heteroaryl) , wherein each alkyl, alkylene, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;
or Rc and Rd are taken together with the atom to which they are attached to form a heterocycloalkyl optionally substituted with one or more R; and
each R is independently halogen, -CN, -OH, -SH, -OCF3, -OCClF2, -SF3, -SF5, -SCF3, -SCClF2, -S (=O) C1-C3alkyl, -S (=O) 2C1-C3alkyl, -S (=O) 2NH2, -S (=O) 2NHC1-C3alkyl, -S (=O) 2N (C1-C3alkyl) 2, -NH2, -NHC1-C3alkyl, -N (C1-C3alkyl) 2, -P (=O) (C1-C3alkyl) N (C1-C3alkyl) 2, -P (=O) (C1-C3alkyl) O (C1-C3alkyl) , -P (=O) (C1-C3alkyl) 2, -C (=O) C1-C3alkyl, -C (=O) OH, -C (=O) OC1-C3alkyl, -C (=O) NH2, -C (=O) NHC1-C3alkyl, -C (=O) N (C1-C3alkyl) 2, C1-C6alkyl, C1-C6alkoxy, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, or C3-C6cycloalkyl;
or two R on the same atom form an oxo;
or two R on the same carbon are taken together to form a cycloalkyl or heterocycloalkyl;
or two R on the different atoms are taken together to form a cycloalkyl, heterocycloalkyl, aryl, or heteroaryl.
In some embodiments of a compound of Formula (I) , the compound is not
In some embodiments of a compound of Formula (I) , RX4 and R4 are taken together to form a heterocycloalkyl or a heteroaryl; each optionally substituted with one or more R5.
In some embodiments of a compound of Formula (I) , RX4 and R4 are taken together to form a 4-to 6-membered heterocycloalkyl or a 5-or 6-membered heteroaryl; each optionally substituted with one or more R5. In some embodiments of a compound of Formula (I) , RX4 and R4 are taken together to
form a 5-membered heteroaryl, which is optionally substituted with one or more R5. In some embodiments of a compound of Formula (I) , RX4 and R4 are taken together to form a 4-to 6-membered heterocycloalkyl, which is optionally substituted with one or more R5. In some embodiments of a compound of Formula (I) , RX4 and R4 are taken together to form a 4-to 5-membered heterocycloalkyl, which is optionally substituted with one or more R5.
In some embodiments of a compound of Formula (I) , RX4 and R4 are taken together to form a heterocycloalkyl optionally substituted with one or more R5.
In some embodiments of a compound of Formula (I) , RX4 and R4 are taken together to form a 5-or 6-membered heterocycloalkyl optionally substituted with one or more R5.
In some embodiments of a compound of Formula (I) , RX4 and R4 are taken together to form a heteroaryl optionally substituted with one or more R5.
In some embodiments of a compound of Formula (I) , RX4 and R4 are taken together to form a 6-membered heteroaryl optionally substituted with one or more R5.
In some embodiments of a compound of Formula (I) , the compound is of Formula (II) :
wherein:
L1 is -C (R6) 2-, -NR7-, -C (R6) 2-C (R6) 2-, -C (R6) 2-NR7-, -NR7-C (R6) 2-, -C (R6) =C (R6) -, -C (R6) =N-, -N=C (R6) -, or -N=N-;
each R6 is independently hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl; and
R7 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl.
In some embodiments of a compound of Formula (II) , L1 is -C (R6) 2-or -NR7-. In some embodiments of a compound of Formula (II) , L1 is -C (R6) 2-. In some embodiments of a compound of Formula (II) , L1 is -C (R6) 2-C (R6) 2-, -C (R6) 2-NR7-, -NR7-C (R6) 2-, -C (R6) =C (R6) -, -C (R6) =N-, -N=C (R6) -, or -N=N-. In some embodiments of a compound of Formula (II) , L1 is -C (R6) 2-C (R6) 2-. In some embodiments of a compound of Formula (II) , L1 is -C (R6) 2-NR7-, -NR7-C (R6) 2-, -C (R6) =C (R6) -, -C (R6) =N-, -N=C (R6) -, or -N=N-. In some embodiments of a compound of Formula (II) , L1 is -C (R6) =C (R6) -, -C (R6) =N-, -N=C (R6) -, or -N=N-. In some embodiments of a compound of Formula (II) , L1 is -C (R6) =C (R6) -or -C (R6) =N-. In some embodiments of a compound of Formula (II) , L1 is -C (R6) =C (R6) -. In some embodiments of a compound of Formula (II) , L1 is -C (R6) =N-.
In some embodiments of a compound of Formula (II) , L1 is -C (R6) 2-, -C (R6) =C (R6) -, or -C (R6) =N-.
In some embodiments of a compound of Formula (II) , R7 is hydrogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (II) , R7 is hydrogen or C1-C6alkyl.
In some embodiments of a compound of Formula (II) , R7 is hydrogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (II) , R7 is hydrogen.
In some embodiments of a compound of Formula (I) or (II) , the compound is of Formula (IIa) , (IIb) , (IIc) , or (IId) :
In some embodiments of a compound of Formula (I) or (II) , the compound is of Formula (IIa) . In some embodiments of a compound of Formula (I) or (II) , the compound is of Formula (IIb) . In some embodiments of a compound of Formula (I) or (II) , the compound is of Formula (IIc) . In some embodiments of a compound of Formula (I) or (II) , the compound is of Formula (IId) .
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , X3 is N. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , X3 is CRX3.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is cycloalkyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is heterocycloalkyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) -
(IId) , RX3 is aryl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is heteroaryl substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is 5-or 6-membered cycloalkyl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is 5-or 6-membered heterocycloalkyl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is 6-to 10-membered aryl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is 5-to 9-membered heteroaryl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is 6-to 9-membered heteroaryl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is 8-to 9-membered heteroaryl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is imidazopyridinyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is imidazo [1, 2-a] pyridinyl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is imidazopyridinyl substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is imidazo [1, 2-a] pyridinyl substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is imidazopyrazinyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is imidazo [1, 2-a] pyrazinyl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is benzimidazolyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is indolyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is pyrrolopyridinyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is indazolyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is imidazopyridinyl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 is
each optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 isoptionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , RX3 isoptionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , each RX3a is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, or C1-C6haloalkyl.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , each RX3a is independently halogen, -CN, -OH, -ORa, -NRbC (=O) Ra, C1-C6alkyl, or C1-C6haloalkyl.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , each RX3a is independently halogen, -CN, -NRbC (=O) Ra, C1-C6alkyl, or C1-C6haloalkyl.
In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , each RX3a is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , each RX3a is independently halogen or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , each RX3a is independently halogen. In some embodiments of a compound of Formula (I) , (II) , or (IIa) - (IId) , each RX3a is independently C1-C6alkyl.
In some embodiments of a compound of Formula (I) or (II) , the compound is of Formula (III) :
wherein:
Ring B is cycloalkyl, heterocycloalkyl, aryl, or heteroaryl;
each R8 is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-
C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;
m is 0, 1, 2, 3, or 4;
L1 is -C (R6) 2-, -NR7-, -C (R6) 2-C (R6) 2-, -C (R6) 2-NR7-, -NR7-C (R6) 2-, -C (R6) =C (R6) -, -C (R6) =N-, -N=C (R6) -, or -N=N-;
each R6 is independently hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl; and
R7 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl.
In some embodiments of a compound of Formula (III) , L1 is -C (R6) 2-or -NR7-. In some embodiments of a compound of Formula (III) , L1 is -C (R6) 2-. In some embodiments of a compound of Formula (III) , L1 is -C (R6) 2-C (R6) 2-, -C (R6) 2-NR7-, -NR7-C (R6) 2-, -C (R6) =C (R6) -, -C (R6) =N-, -N=C (R6) -, or -N=N-. In some embodiments of a compound of Formula (III) , L1 is -C (R6) 2-C (R6) 2-. In some embodiments of a compound of Formula (III) , L1 is -C (R6) 2-NR7-, -NR7-C (R6) 2-, -C (R6) =C (R6) -, -C (R6) =N-, -N=C (R6) -, or -N=N-. In some embodiments of a compound of Formula (III) , L1 is -C (R6) =C (R6) -, -C (R6) =N-, -N=C (R6) -, or -N=N-. In some embodiments of a compound of Formula (III) , L1 is -C (R6) =C (R6) -or -C (R6) =N-. In some embodiments of a compound of Formula (III) , L1 is -C (R6) =C (R6) -. In some embodiments of a compound of Formula (III) , L1 is -C (R6) =N-.
In some embodiments of a compound of Formula (III) , L1 is -C (R6) 2-, -C (R6) =C (R6) -, or -C (R6) =N-.
In some embodiments of a compound of Formula (III) , R7 is hydrogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (III) , R7 is hydrogen or C1-C6alkyl.
In some embodiments of a compound of Formula (III) , R7 is hydrogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (III) , R7 is hydrogen.
In some embodiments of a compound of Formula (I) or (III) , the compound is of Formula (IIIa) , (IIIb) , (IIIc) , or (IIId) :
In some embodiments of a compound of Formula (I) or (III) , the compound is of Formula (IIIa) . In some embodiments of a compound of Formula (I) or (III) , the compound is of Formula (IIIb) . In some embodiments of a compound of Formula (I) or (III) , the compound is of Formula (IIIc) . In some embodiments of a compound of Formula (I) or (III) , the compound is of Formula (IIId) .
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is 5-or 6-membered cycloalkyl, 5-or 6-membered heterocycloalkyl 6-to 10-membered aryl, or 5-to 9-membered heteroaryl.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is cycloalkyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is 5-or 6-membered cycloalkyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is heterocycloalkyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is 5-or 6-membered heterocycloalkyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is aryl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is 6-to 10-membered aryl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is phenyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is heteroaryl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is 5-to 10-membered heteroaryl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is 5-or 6-membered heteroaryl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is 9-or 10-
membered heteroaryl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is 9-membered heteroaryl.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is a monocyclic heteroaryl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is a bicyclic heteroaryl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is a bicyclic ring.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is imidazopyridinyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is imidazo [1, 2-a] pyridinyl.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is imidazopyridinyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is imidazo [1, 2-a] pyridinyl.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is imidazopyrazinyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is imidazo [1, 2-a] pyrazinyl.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is benzimidazolyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is indolyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is pyrrolopyridinyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is indazolyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is imidazopyridinyl.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B isIn some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , Ring B is
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , each R8 is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, or C1-C6haloalkyl.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , each R8 is independently halogen, -CN, -OH, -ORa, -NRbC (=O) Ra, C1-C6alkyl, or C1-C6haloalkyl.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , each R8 is independently halogen, -CN, -NRbC (=O) Ra, C1-C6alkyl, or C1-C6haloalkyl.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , each R8 is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , each R8 is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , each R8 is independently halogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , each R8 is independently halogen or C1-C6alkyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , each R8 is independently halogen. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , each R8 is independently C1-C6alkyl. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , R8 is RX3a.
In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , m is 0, 1, 2, or 3. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , m is 0, 1, or 2. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , m is 1 or 2. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , m is 0 or 1. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , m is 0. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , m is 1. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , m is 2. In some embodiments of a compound of Formula (III) , or (IIIa) - (IIId) , m is 3.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) - (IIId) , each R6 is independently hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) -(IIId) , each R6 is independently hydrogen, halogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) -(IIId) , each R6 is independently hydrogen, halogen, C1-C6alkyl, or C1-C6haloalkyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) - (IIId) , each R6 is independently hydrogen, halogen, or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) - (IIId) , each R6 is independently hydrogen or halogen. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) - (IIId) , each R6 is hydrogen.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) - (IIId) , R3 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) - (IIId) , R3 is hydrogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) - (IIId) , R3 is hydrogen or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , or (IIIa) - (IIId) , R3 is hydrogen.
In some embodiments of a compound of Formula (I) , R4 is hydrogen or C1-C6alkyl. In some embodiments of a compound of Formula (I) , R4 is hydrogen.
In some embodiments of a compound of Formula (I) , the compound is of Formula (IV) :
In some embodiments of a compound of Formula (I) or (IV) , X3 is N. In some embodiments of a compound of Formula (I) or (IV) , X3 is CRX3.
In some embodiments of a compound of Formula (I) or (IV) , RX3 is cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) or (IV) , RX3 is 5-or 6-membered cycloalkyl, 5-or 6-membered heterocycloalkyl, 6-to 10-membered aryl, or 5-to 9-membered heteroaryl; wherein the cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) or (IV) , RX3 is cycloalkyl or heteroaryl; wherein the cycloalkyl and heteroaryl is independently optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is cycloalkyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is heterocycloalkyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is aryl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is heteroaryl substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) or (IV) , RX3 is 5-to 9-membered heteroaryl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is 6-to 9-membered heteroaryl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is 8-to 9-membered heteroaryl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) or (IV) , RX3 is imidazopyridinyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is imidazo [1, 2-a] pyridinyl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) or (IV) , RX3 is imidazopyridinyl substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is imidazo [1, 2-a] pyridinyl substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) or (IV) , RX3 is imidazopyrazinyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is imidazo [1, 2-a] pyrazinyl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) or (IV) , RX3 is benzimidazolyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is indolyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is pyrrolopyridinyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is indazolyl optionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is imidazopyridinyl optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) or (IV) , RX3 is
each optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) or (IV) , RX3 isoptionally substituted with one or more RX3a. In some embodiments of a compound of Formula (I) or (IV) , RX3 is optionally substituted with one or more RX3a.
In some embodiments of a compound of Formula (I) or (IV) , each RX3a is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) or (IV) , each RX3a is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) or (IV) , each RX3a is independently halogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) or (IV) , each RX3a is independently halogen or C1-C6alkyl. In some embodiments of a compound of Formula (I) or (IV) , each RX3a is independently halogen. In some embodiments of a compound of Formula (I) or (IV) , each RX3a is independently C1-C6alkyl.
In some embodiments of a compound of Formula (I) or (IV) , is In some embodiments of a compound of Formula (I) or (IV) , is
In some embodiments of a compound of Formula (I) or (IV) , the compound is of Formula (IVa) :
wherein:
Ring B is cycloalkyl, heterocycloalkyl, aryl, or heteroaryl;
each R8 is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;
m is 0, 1, 2, 3, or 4.
In some embodiments of a compound of Formula (IVa) , is
In some embodiments of a compound of Formula (IVa) , is
In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-or 6-membered cycloalkyl, 5-to 9-membered heterocycloalkyl, phenyl, or 5-to 9-membered heteroaryl.
In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is cycloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-or 6-membered cycloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is cyclohexenyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is heterocycloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-to 9-membered heterocycloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is aryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 6-to 10-membered aryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is phenyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-to 10-membered heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-to 9-membered heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-to 10-membered heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 5-or 6-membered heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 9-or 10-membered heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is 9-membered heteroaryl.
In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is a monocyclic heteroaryl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is a bicyclic heteroaryl.
In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is imidazopyridinyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is imidazo [1, 2-a] pyridinyl.
In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is imidazopyridinyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is imidazo [1, 2-a] pyridinyl.
In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is imidazopyrazinyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is imidazo [1, 2-a] pyrazinyl.
In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is benzimidazolyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is indolyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is pyrrolopyridinyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is indazolyl. In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is imidazopyridinyl.
In some embodiments of a compound of Formula (IV) or (IVa) , Ring B is
In some embodiments of a compound of Formula (IV) or (IVa) , Ring B isIn some embodiments of a compound of Formula (IV) or (IVa) , Ring B is
In some embodiments of a compound of Formula (IV) or (IVa) , each R8 is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , each R8 is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , each R8 is independently halogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , each R8 is independently halogen or C1-C6alkyl. In some embodiments of a compound of Formula (IV) or (IVa) , each R8 is independently halogen. In some embodiments of a compound of Formula (IV) or (IVa) , each R8 is independently C1-C6alkyl.
In some embodiments of a compound of Formula (IV) or (IVa) , each R8 is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, -NRbC (=O) Ra, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (IV) or (IVa) , each R8 is independently halogen, -NRbC (=O) Ra, or C1-C6alkyl. In some embodiments of a compound of Formula (IV) or (IVa) , each R8 is independently halogen or -NRbC (=O) Ra. In some embodiments of a compound of Formula (IV) or (IVa) , R8 is RX3a.
In some embodiments of a compound of Formula (IV) or (IVa) , each R8 is independently -NRbC (=O) Ra.
In some embodiments of a compound of Formula (IV) or (IVa) , m is 0, 1, 2, or 3. In some embodiments of a compound of Formula (IV) or (IVa) , m is 0, 1, or 2. In some embodiments of a compound of Formula (IV) or (IVa) , m is 1 or 2. In some embodiments of a compound of Formula (IV) or (IVa) , m is 0 or 1. In some embodiments of a compound of Formula (IV) or (IVa) , m is 0. In some
embodiments of a compound of Formula (IV) or (IVa) , m is 1. In some embodiments of a compound of Formula (IV) or (IVa) , m is 2. In some embodiments of a compound of Formula (IV) or (IVa) , m is 3.
In some embodiments of a compound of Formula (I) , (IV) , or (IVa) , X4 is N. In some embodiments of a compound of Formula (I) , (IV) , or (IVa) , X4 is CRX4.
In some embodiments of a compound of Formula (I) , (IV) , or (IVa) , RX4 is hydrogen.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is 4-to 6-membered cycloalkyl or 4-to 6-membered heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is cycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is 5-to 6-membered cycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is cyclobutyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is 5-or 6-membered heterocycloalkyl comprising 1 or 2 heteroatoms selected from the group consisting of O and N. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) -(IIId) , (IV) , or (IVa) , Ring A is 5-membered heterocycloalkyl comprising 1 or 2 heteroatoms selected from the group consisting of O and N. In some embodiments of a compound of Formula (I) , (II) , (IIa) -(IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is 6-membered heterocycloalkyl comprising 1 or 2 heteroatoms selected from the group consisting of O and N. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is tetrahydrofuranyl or tetrahydropyranyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) -(IIId) , (IV) , or (IVa) , Ring A is piperidinyl, tetrahydrofuranyl, or tetrahydropyranyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is piperidinyl or tetrahydropyranyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is tetrahydrofuranyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is tetrahydropyranyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Ring A is piperidinyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently halogen, -CN, -OH, -ORa, -NRcRd, -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl; wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently halogen, -CN, -OH, -ORa, -NRcRd, -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl; wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently halogen, -CN, -OH, -ORa, -NRcRd, -C (=O) Ra, C1-C6alkyl, or C1-
C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently halogen, -C (=O) Ra, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently -C (=O) Ra or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) -(IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently -C (=O) Ra.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently -OH, -ORa, -C (=O) Ra, C1-C6alkyl, C1-C6haloalkyl, or heterocycloalkyl independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently -OH, -ORa, C1-C6alkyl, or heterocycloalkyl independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently -OH, -ORa, C1-C6alkyl, C1-C6haloalkyl, or heterocycloalkyl independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently C1-C6alkyl or heterocycloalkyl independently optionally substituted with one or more R. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently heterocycloalkyl independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently 3-to 6-membered heterocycloalkyl comprising one or two heteroatoms selected from O, S, and N and independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently 3-to 5-membered heterocycloalkyl comprising one heteroatom selected from O, S, and N and independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently 3-to 4-membered heterocycloalkyl comprising one heteroatom selected from O, S, and N and independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently 4-membered heterocycloalkyl comprising one heteroatom selected from O, S, and N and independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently oxetanyl independently optionally substituted with one or more R. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each R1 is independently oxetanyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , two R1 on the same atom are taken together to form an oxo.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , n is 1 or 2. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , n is 0 or 1. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , n is 0, 1, or 2. In some embodiments of a compound of Formula (I) , (II) , (IIa) -(IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , n is 0. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , n is 1. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , n is 2. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , n is 3.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , W is -NRW1-. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) -(IIId) , (IV) , or (IVa) , W is -C (RW2) 2-. In some embodiments of a compound of Formula (I) , (II) , (IIa) -(IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , W is -C (=O) -.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RW1 is hydrogen, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more RW1a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RW1 is hydrogen, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, 3-6 membered cycloalkyl, or 3-6 membered heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more RW1a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RW1 is -C (=O) Ra, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, cycloalkyl, or heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more RW1a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RW1 is C1-C6alkyl optionally substituted with one or more RW1a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RW1 is heterocycloalkyl optionally substituted with one or more RW1a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RW1a is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RW1a is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, or heterocycloalkyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RW1a is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, 3-to 6-membered cycloalkyl, or 3-to 6-membered heterocycloalkyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RW2 are independently hydrogen, halogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RW2 are independently hydrogen, halogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RW2 are independently hydrogen, halogen, or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RW2 are independently hydrogen or halogen. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RW2 are independently hydrogen or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RW2 is hydrogen.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Y is -NRY1-. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) -(IIId) , (IV) , or (IVa) , Y is -C (RY2) 2-. In some embodiments of a compound of Formula (I) , (II) , (IIa) -(IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Y is -C (=O) -.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RY1 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more RY1a. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RY1 is hydrogen or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RY1 is C1-C6alkyl or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RY1 is C1-C6alkyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RY1 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, 3-6 membered cycloalkyl, or 3-6 membered heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more RY1a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RY1 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, cycloalkyl, or heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more RY1a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RY1 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, cycloalkyl, or heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more RY1a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RY1a is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, cycloalkyl, or heterocycloalkyl; wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RY1a is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, cycloalkyl, or heterocycloalkyl; wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RY2 are independently hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RY2 are independently hydrogen, halogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RY2 are independently hydrogen, halogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RY2 are independently hydrogen, halogen, or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RY2 are independently hydrogen or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RY2 are hydrogen.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , isIn some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , isIn some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , is
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , isIn some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , isIn some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , isIn some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , isand R1’ is hydrogen or R1.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , isIn some embodiments of a compound of Formula (I) , (II) , (IIa) -(IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , isand R1’ is hydrogen or R1.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R1’ is -C (=O) Ra, C1-C6alkyl, C1-C6haloalkyl, or heterocycloalkyl independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R1’ is -C (=O) Ra. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) -(IIId) , (IV) , or (IVa) , R1’ is C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) -(IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R1’ is C1-C6haloalkyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R1’ is heterocycloalkyl independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R1’ is 3-to 6-membered heterocycloalkyl comprising one or two heteroatoms selected from O, S, and N and independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R1’ is 3-to 5-membered heterocycloalkyl comprising one heteroatom selected from O, S, and N and independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R1’ is 3-to 4-membered heterocycloalkyl comprising one heteroatom selected from O, S, and N and independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R1’ is 4-membered heterocycloalkyl comprising one heteroatom selected from O, S, and N and independently optionally substituted with one or more R.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R1’ is oxetanyl independently optionally substituted with one or more R. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R1’ is oxetanyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , is
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , is
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , is
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , is,
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Z1 is CRZ1. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Z1 is N.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RZ1 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RZ1 is hydrogen, halogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RZ1 is hydrogen, halogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RZ1 is hydrogen, halogen, or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RZ1 is hydrogen.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , Z2 is CRZ2. The compound of any one of claims 1-84, or a pharmaceutically acceptable salt thereof, wherein Z2 is N.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RZ2 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RZ2 is hydrogen, halogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RZ2 is hydrogen, halogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RZ2 is hydrogen, halogen, or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RZ2 is hydrogen.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , L is -NR2-. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , L is -O-. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) -(IIId) , (IV) , or (IVa) , L is -S-.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R2 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R2 is hydrogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R2 is hydrogen or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , R2 is hydrogen.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , X1 is CRX1. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , X1 is N.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX1 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX1 is hydrogen, halogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX1 is hydrogen, halogen, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX1 is hydrogen, halogen, or C1-C6alkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX1 is hydrogen or halogen. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) -(IIId) , (IV) , or (IVa) , RX1 is hydrogen or halogen. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX1 is hydrogen.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , X2 is CRX2. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , X2 is N.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX2 is hydrogen, halogen, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX2a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX2 is hydrogen, halogen, 3-6 membered cycloalkyl, 3-6 membered heterocycloalkyl, 6-10 membered aryl, or 5-9 membered heteroaryl; wherein the cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX2a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX2 is cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX2a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX2 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the alkyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX2a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX2 is hydrogen, halogen, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more RX2a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX2 is hydrogen, halogen, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX2 is hydrogen, C1-C6alkyl, or cycloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX2 is C1-C6alkyl or cycloalkyl.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX2 is hydrogen.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , RX2 is aryl optionally substituted with one or more RX2a.
In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RX2a is independently halogen, -CN, -OH, -ORa, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -(=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RX2a is independently halogen, -CN, -OH, -NRbC (=O) Ra, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound of Formula (I) , (II) , (IIa) - (IId) , (III) , (IIIa) - (IIId) , (IV) , or (IVa) , each RX2a is independently halogen, -NRbC (=O) Ra, or C1-C6alkyl.
In some embodiments of a compound disclosed herein, each Ra is independently C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, heterocycloalkyl, C1-C6alkylene (cycloalkyl) , or C1-C6alkylene (heterocycloalkyl) , wherein each alkyl, alkylene, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound disclosed herein, each Ra is independently C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl, wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound disclosed herein, each Ra is independently C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl, wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound disclosed herein, each Ra is independently C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound disclosed herein, each Ra is independently C1-C6alkyl, C1-C6haloalkyl, or cycloalkyl. In some embodiments of a compound disclosed herein, each Ra is independently C1-C6alkyl or cycloalkyl. In some embodiments of a compound disclosed herein, each Ra is independently C1-C6alkyl. In some embodiments of a compound disclosed herein, each Ra is independently cycloalkyl.
In some embodiments of a compound disclosed herein, each Rb is independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, heterocycloalkyl, C1-C6alkylene (cycloalkyl) , or C1-C6alkylene (heterocycloalkyl) , wherein each alkyl, alkylene, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound disclosed herein, each Rb is independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl,
wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound disclosed herein, each Rb is independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl, wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound disclosed herein, each Rb is independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound disclosed herein, each Rb is independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, or cycloalkyl. In some embodiments of a compound disclosed herein, each Rb is independently hydrogen, C1-C6alkyl, or cycloalkyl. In some embodiments of a compound disclosed herein, each Rb is independently hydrogen or C1-C6alkyl. In some embodiments of a compound disclosed herein, each Rb is hydrogen. In some embodiments of a compound disclosed herein, each Rb is independently C1-C6alkyl.
In some embodiments of a compound disclosed herein, Rc and Rd are each independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, heterocycloalkyl, C1-C6alkylene (cycloalkyl) , or C1-C6alkylene (heterocycloalkyl) , wherein each alkyl, alkylene, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound disclosed herein, Rc and Rd are each independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl, wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound disclosed herein, Rc and Rd are each independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl, wherein each alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more R. In some embodiments of a compound disclosed herein, Rc and Rd are each independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, cycloalkyl, or heterocycloalkyl. In some embodiments of a compound disclosed herein, Rc and Rd are each independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, or cycloalkyl. In some embodiments of a compound disclosed herein, Rc and Rd are each independently hydrogen, C1-C6alkyl, or cycloalkyl. In some embodiments of a compound disclosed herein, Rc and Rd are each independently hydrogen or C1-C6alkyl. In some embodiments of a compound disclosed herein, Rc and Rd are each hydrogen. In some embodiments of a compound disclosed herein, Rc and Rd are each independently C1-C6alkyl.
In some embodiments of a compound disclosed herein, Rc and Rd are taken together with the atom to which they are attached to form a heterocycloalkyl optionally substituted with one or more R.
In some embodiments of a compound disclosed herein, each R is independently halogen, -CN, -OH, -OCF3, -OCClF2, -NH2, -NHC1-C3alkyl, -N (C1-C3alkyl) 2, -C (=O) C1-C3alkyl, -C (=O) OH, -C (=O) OC1-C3alkyl, -C (=O) NH2, -C (=O) NHC1-C3alkyl, -C (=O) N (C1-C3alkyl) 2, C1-C6alkyl, C1-C6alkoxy, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, or C3-C6cycloalkyl. In some embodiments of a compound disclosed herein, each R is independently halogen, -CN, -OH, -OCF3, -OCClF2, -NH2, -NHC1-C3alkyl, -N (C1-C3alkyl) 2, C1-C6alkyl, C1-C6alkoxy, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, or C3-C6cycloalkyl. In some embodiments of a
compound disclosed herein, each R is independently halogen, -CN, -OH, -OCF3, -OCClF2, -NH2, -NHC1-C3alkyl, -N (C1-C3alkyl) 2, C1-C6alkyl, C1-C6alkoxy, C1-C6haloalkyl, or C3-C6cycloalkyl. In some embodiments of a compound disclosed herein, each R is independently halogen, -CN, -OH, -OCF3, -OCClF2, -NH2, -NHC1-C3alkyl, -N (C1-C3alkyl) 2, C1-C6alkyl, C1-C6alkoxy, or C1-C6haloalkyl. In some embodiments of a compound disclosed herein, each R is independently halogen, -CN, -OH, C1-C6alkyl, C1-C6alkoxy, or C1-C6haloalkyl. In some embodiments of a compound disclosed herein, each R is independently halogen, -OH, C1-C6alkyl, or C1-C6haloalkyl. In some embodiments of a compound disclosed herein, each R is independently halogen or C1-C6alkyl.
In some embodiments of a compound disclosed herein, two R on the same atom form an oxo. In some embodiments of a compound disclosed herein, two R on the same carbon are taken together to form a cycloalkyl or heterocycloalkyl. In some embodiments of a compound disclosed herein, two R on the different atoms are taken together to form a cycloalkyl, heterocycloalkyl, aryl, or heteroaryl.
In some embodiments of a compound disclosed herein, one or more of R, R1, R2, R3, R4, R5, R6, R7, R8, RW1, RW2, RW1a, RY1, RY2, RY1a, RZ1, RZ2, RZ3, RX1, RX2, RX2a, RX3, RX3a, RX4, Ra, Rb, Rc, and Rd groups comprise deuterium at a percentage higher than the natural abundance of deuterium.
In some embodiments of a compound disclosed herein, one or more 1H are replaced with one or more deuteriums in one or more of the following groups R, R1, R2, R3, R4, R5, R6, R7, R8, RW1, RW2, RW1a, RY1, RY2, RY1a, RZ1, RZ2, RZ3, RX1, RX2, RX2a, RX3, RX3a, RX4, Ra, Rb, Rc, and Rd.
In some embodiments of a compound disclosed herein, the abundance of deuterium in each of R, R1, R2, R3, R4, R5, R6, R7, R8, RW1, RW2, RW1a, RY1, RY2, RY1a, RZ1, RZ2, RZ3, RX1, RX2, RX2a, RX3, RX3a, RX4, Ra, Rb, Rc, and Rd is independently at least 1%, at least 10%, at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, or 100%of by molar.
In some embodiments of a compound disclosed herein, one or more 1H of Ring A and Ring B are replaced with one or more deuteriums.
Any combination of the groups described above for the various variables is contemplated herein. Throughout the specification, groups and substituents thereof are chosen by one skilled in the field to provide stable moieties and compounds.
In some embodiments the compound disclosed herein, or a pharmaceutically acceptable salt thereof, is one of the compounds in Table 1.
TABLE 1
In some embodiments the compound disclosed herein, or a pharmaceutically acceptable salt thereof, is one of the compounds in Table 2.
TABLE 2
Further Forms of Compounds Disclosed Herein
Isomers/Stereoisomers
In some embodiments, the compounds described herein exist as geometric isomers. In some embodiments, the compounds described herein possess one or more double bonds. The compounds presented herein include all cis, trans, syn, anti, entgegen (E) , and zusammen (Z) isomers as well as the corresponding mixtures thereof. In some situations, the compounds described herein possess one or more chiral centers and each center exists in the R configuration, or S configuration. The compounds described herein include all diastereomeric, enantiomeric, and epimeric forms as well as the corresponding mixtures thereof. In additional embodiments of the compounds and methods provided herein, mixtures of enantiomers and/or diastereoisomers, resulting from a single preparative step, combination, or interconversion are useful for the applications described herein. In some embodiments, the compounds described herein are prepared as their individual stereoisomers by reacting a racemic mixture of the compound with an optically active resolving agent to form a pair of diastereoisomeric compounds, separating the diastereomers and recovering the optically pure enantiomers. In some embodiments, dissociable complexes are preferred. In some embodiments, the diastereomers have distinct physical properties (e.g., melting points, boiling points, solubilities, reactivity, etc. ) and are separated by taking advantage of these dissimilarities. In some embodiments, the diastereomers are separated by chiral chromatography, or preferably, by separation/resolution techniques based upon differences in solubility.
In some embodiments, the optically pure enantiomer is then recovered, along with the resolving agent, by any practical means that would not result in racemization.
Isotopically enriched compounds
Unless otherwise stated, compounds described herein may exhibit their natural isotopic abundance, or one or more of the atoms may be artificially enriched in a particular isotope having the same atomic number, but an atomic mass or mass number different from the atomic mass or mass number predominantly found in nature. All isotopic variations of the compounds of the present disclosure, whether radioactive or not, are encompassed within the scope of the present disclosure. For example, hydrogen has three naturally occurring isotopes, denoted 1H (protium) , 2H (deuterium) , and 3H (tritium) . Protium is the most abundant isotope of hydrogen in nature. Enriching for deuterium may afford some therapeutic advantages, such as increased in vivo half-life and/or exposure, or may provide a compound useful for investigating in vivo routes of drug elimination and metabolism.
For example, the compounds described herein may be artificially enriched in one or more particular isotopes. In some embodiments, the compounds described herein may be artificially enriched in one or more isotopes that are not predominantly found in nature. In some embodiments, the compounds described herein may be artificially enriched in one or more isotopes selected from deuterium (2H) , tritium (3H) , iodine-125 (125I) or carbon-14 (14C) . In some embodiments, the compounds described herein are artificially enriched in one or more isotopes selected from 2H, 11C, 13C, 14C, 15C, 12N, 13N, 15N, 16N, 16O, 17O, 14F, 15F, 16F, 17F, 18F, 33S, 34S, 35S, 36S, 35Cl, 37Cl, 79Br, 81Br, 131I, and 125I. In some embodiments, the abundance of the enriched isotopes is independently at least 1%, at least 10%, at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, or 100%by molar.
In some embodiments, the compound is deuterated in at least one position. In some embodiments, the compounds disclosed herein have some or all of the 1H atoms replaced with 2H atoms.
The methods of synthesis for deuterium-containing compounds are known in the art and include, by way of non-limiting example only, the procedure described in U.S. Patent Nos. 5,846,514 and 6,334,997, and the following synthetic methods. For example, deuterium substituted compounds may be synthesized using various methods such as described in: Dean, Dennis C.; Editor. Recent Advances in the Synthesis and Applications of Radiolabeled Compounds for Drug Discovery and Development. [In: Curr., Pharm. Des., 2000; 6 (10) ] 2000, 110 pp; George W.; Varma, Rajender S. The Synthesis of Radiolabeled Compounds via Organometallic Intermediates, Tetrahedron, 1989, 45 (21) , 6601-21; and Evans, E. Anthony. Synthesis of radiolabeled compounds, J. Radioanal. Chem., 1981, 64 (1-2) , 9-32. Pharmaceutically acceptable salts
In some embodiments, the compounds described herein exist as their pharmaceutically acceptable salts. In some embodiments, the methods disclosed herein include methods of treating diseases by administering such pharmaceutically acceptable salts. In some embodiments, the methods
disclosed herein include methods of treating diseases by administering such pharmaceutically acceptable salts as pharmaceutical compositions.
In some embodiments, the compounds described herein possess acidic or basic groups and therefore react with any of a number of inorganic or organic bases, and inorganic and organic acids, to form a pharmaceutically acceptable salt. In some embodiments, these salts are prepared in situ during the final isolation and purification of the compounds disclosed herein thereof, or by separately reacting a purified compound in its free form with a suitable acid or base, and isolating the salt thus formed.
Examples of pharmaceutically acceptable salts include those salts prepared by reaction of the compounds described herein with a mineral, organic acid or inorganic base, such salts including, acetate, acrylate, adipate, alginate, aspartate, benzoate, benzenesulfonate, bisulfate, bisulfite, bromide, butyrate, butyn-1, 4-dioate, camphorate, camphorsulfonate, caproate, caprylate, chlorobenzoate, chloride, citrate, cyclopentanepropionate, decanoate, digluconate, dihydrogenphosphate, dinitrobenzoate, dodecylsulfate, ethanesulfonate, formate, fumarate, glucoheptanoate, glycerophosphate, glycolate, hemisulfate, heptanoate, hexanoate, hexyne-1, 6-dioate, hydroxybenzoate, γ-hydroxybutyrate, hydrochloride, hydrobromide, hydroiodide, 2-hydroxyethanesulfonate, iodide, isobutyrate, lactate, maleate, malonate, methanesulfonate, mandelate metaphosphate, methanesulfonate, methoxybenzoate, methylbenzoate, monohydrogenphosphate, 1-napthalenesulfonate, 2-napthalenesulfonate, nicotinate, nitrate, palmoate, pectinate, persulfate, 3-phenylpropionate, phosphate, picrate, pivalate, propionate, pyrosulfate, pyrophosphate, propiolate, phthalate, phenylacetate, phenylbutyrate, propanesulfonate, salicylate, succinate, sulfate, sulfite, succinate, suberate, sebacate, sulfonate, tartrate, thiocyanate, tosylate, undecanoate and xylenesulfonate.
Further, the compounds described herein can be prepared as pharmaceutically acceptable salts formed by reacting the free base form of the compound with a pharmaceutically acceptable inorganic or organic acid, including, but not limited to, inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid metaphosphoric acid, and the like; and organic acids such as acetic acid, propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, p-toluenesulfonic acid, tartaric acid, trifluoroacetic acid, citric acid, benzoic acid, 3- (4-hydroxybenzoyl) benzoic acid, cinnamic acid, mandelic acid, arylsulfonic acid, methanesulfonic acid, ethanesulfonic acid, 1, 2-ethanedisulfonic acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid, 2-naphthalenesulfonic acid, 4-methylbicyclo- [2.2.2] oct-2-ene-1-carboxylic acid, glucoheptonic acid, 4, 4’ -methylenebis- (3-hydroxy-2-ene-1 -carboxylic acid) , 3-phenylpropionic acid, trimethylacetic acid, tertiary butylacetic acid, lauryl sulfuric acid, gluconic acid, glutamic acid, hydroxynaphthoic acid, salicylic acid, stearic acid and muconic acid. In some embodiments, other acids, such as oxalic, while not in themselves pharmaceutically acceptable, are employed in the preparation of salts useful as intermediates in obtaining the compounds disclosed herein and their pharmaceutically acceptable acid addition salts.
In some embodiments, those compounds described herein which comprise a free acid group react with a suitable base, such as the hydroxide, carbonate, bicarbonate, sulfate, of a pharmaceutically
acceptable metal cation, with ammonia, or with a pharmaceutically acceptable organic primary, secondary, tertiary, or quaternary amine. Representative salts include the alkali or alkaline earth salts, like lithium, sodium, potassium, calcium, and magnesium, and aluminum salts and the like. Illustrative examples of bases include sodium hydroxide, potassium hydroxide, choline hydroxide, sodium carbonate, N+ (C1-4 alkyl) 4, and the like.
Representative organic amines useful for the formation of base addition salts include ethylamine, diethylamine, ethylenediamine, ethanolamine, diethanolamine, piperazine and the like. It should be understood that the compounds described herein also include the quaternization of any basic nitrogen-containing groups they contain. In some embodiments, water or oil-soluble or dispersible products are obtained by such quaternization.
Tautomers
In some situations, compounds exist as tautomers. The compounds described herein include all possible tautomers within the formulas described herein. Tautomers are compounds that are interconvertible by migration of a hydrogen atom, accompanied by a switch of a single bond and adjacent double bond. In bonding arrangements where tautomerization is possible, a chemical equilibrium of the tautomers will exist. All tautomeric forms of the compounds disclosed herein are contemplated. The exact ratio of the tautomers depends on several factors, including temperature, solvent, and pH.
Method of Treatment
The presently disclosed compounds, or a pharmaceutically acceptable salt thereof, find use in inhibiting the activity of the enzyme HPK1. HPK1, also referred to as mitogen activated protein kinase 1 or MAP4K1, is a member of the germinal center kinase subfamily of Ste20-related serine/threonine kinases. HPK1 functions as a MAP4K by phosphorylating and activating MAP3K proteins, including MEKK1, MLK3 and TAK1, leading to the activation of the MAPK Jnk.
The presently disclosed compounds, or a pharmaceutically acceptable salt thereof, bind directly to HPK1 and inhibit its kinase activity. In some embodiments, the presently disclosed compounds reduce, inhibit, or otherwise diminish the HPK1-mediated phosphorylation of SLP76 and/or Gads.
In some embodiments, the compounds disclosed herein, or a pharmaceutically acceptable salt thereof, are used in a method for inhibiting HPK1. Such methods comprise contacting HPK1 with an effective amount of a presently disclosed compound. By “contact” is intended bringing the compound within close enough proximity to an isolated HPK1 enzyme or a cell expressing HPK1 (e.g., T cell, B cell, dendritic cell) such that the compound is able to bind to and inhibit the activity of HPK1. The compound can be contacted with HPK1 in vitro or in vivo via administration of the compound to a subject.
Any method known in the art to measure the kinase activity of HPK1 may be used to determine if HPK1 has been inhibited, including in vitro kinase assays, immunoblots with antibodies specific for phosphorylated targets of HPK1, such as SLP76 and Gads, or the measurement of a downstream biological effect of HPK1 kinase activity, such as the recruitment of 14-3-3 proteins to phosphorylated
SLP7 and Gads, release of the SLP76-Gads-14-3-3 complex from LAT-containing microclusters, or T or B cell activation.
In some embodiments, the compounds disclosed herein, or a pharmaceutically acceptable salt thereof, are used to treat a HPK1-dependent disorder. As used herein, a “HPK1-dependent disorder” is a pathological condition in which HPK1 activity is necessary for the genesis or maintenance of the pathological condition. In some embodiments, the HPK1-dependent disorder is cancer.
In some embodiments, the compounds disclosed herein are used in enhancing an immune response in a subject in need thereof.
As used herein, “enhancing an immune response” refers to an improvement in any immunogenic response to an antigen. Non-limiting examples of improvements in an immunogenic response to an antigen include enhanced maturation or migration of dendritic cells, enhanced activation of T cells (e.g., CD4 T cells, CD8 T cells) , enhanced T cell (e.g., CD4 T cell, CD8 T cell) proliferation, enhanced B cell proliferation, increased survival of T cells and/or B cells, improved antigen presentation by antigen presenting cells (e.g., dendritic cells) , improved antigen clearance, increase in production of cytokines by T cells (e.g., interleukin-2) , increased resistance to prostaglandin E2-induced immune suppression, and enhanced priming and/or cytolytic activity of CD8 T cells.
In some embodiments, the CD8 T cells in the subject have enhanced priming, activation, proliferation and/or cytolytic activity relative to prior to the administration of the compound disclosed herein, or a pharmaceutically acceptable salt thereof. In some embodiments, the CD8 T cell priming is characterized by elevated CD44 expression and/or enhanced cytolytic activity in CD8 T cells. In some embodiments, the CD8 T cell activation is characterized by an elevated frequency of γ-IFN+ CD8 T cells. In some embodiments, the CD8 T cell is an antigen-specific T-cell.
In some embodiments, the antigen presenting cells in the subject have enhanced maturation and activation relative to prior to the administration of a compound disclosed herein. In some embodiments, the antigen presenting cells are dendritic cells. In some embodiments, the maturation of the antigen presenting cells is characterized by an increased frequency of CD83+ dendritic cells. In some embodiments, the activation of the antigen presenting cells is characterized by elevated expression of CD80 and CD86 on dendritic cells.
In some embodiments, the serum levels of cytokine IL-10 and/or chemokine IL-8, a human homolog of murine KC, in the subject are reduced relative to prior to the administration of a compound disclosed herein, or a pharmaceutically acceptable salt thereof.
Engagement of the TCR leads to HPK1 activation, which functions as a negative regulator of TCR-induced AP-1 response pathway. It is believed that HPK1 negatively regulates T cell activation by reducing the persistence of signaling microclusters by phosphorylating SLP76 at Ser376 and Gads at Thr254, which leads to the recruitment of 14-3-3 proteins that bind to the phosphorylated SLP76 and Gads, releasing the SLP76-Gads-14-3-3 complex from LAT-containing microclusters, which leads to T cell dysfunction, including anergy and exhaustion.
The term “dysfunction” in the context of immune dysfunction, refers to a state of reduced immune responsiveness to antigenic stimulation. The term includes the common elements of both exhaustion and/or anergy in which antigen recognition may occur, but the ensuing immune response is ineffective to control infection or tumor growth.
The term “dysfunctional” , as used herein, also includes refractory or unresponsive to antigen recognition, specifically, impaired capacity to translate antigen recognition into downstream T-cell effector functions, such as proliferation, cytokine production (e.g., IL-2, γ-IFN) and/or target cell killing.
The term “anergy” refers to the state of unresponsiveness to antigen stimulation resulting from incomplete or insufficient signals delivered through the T-cell receptor (e.g. increase in intracellular Ca+2 in the absence of ras-activation) . T cell anergy can also result upon stimulation with antigen in the absence of co-stimulation, resulting in the cell becoming refractory to subsequent activation by the antigen even in the context of costimulation. The unresponsive state can often be overridden by the presence of Interleukin-2. Anergic T-cells do not undergo clonal expansion and/or acquire effector functions.
The term “exhaustion” refers to T cell exhaustion as a state of T cell dysfunction that arises from sustained TCR signaling that occurs during many chronic infections and cancer. It is distinguished from anergy in that it arises not through incomplete or deficient signaling, but from sustained signaling. It is defined by poor effector function, sustained expression of inhibitory receptors and a transcriptional state distinct from that of functional effector or memory T cells. Exhaustion prevents optimal control of infection and tumors. Exhaustion can result from both extrinsic negative regulatory pathways (e.g., immunoregulatory cytokines) as well as cell intrinsic negative regulatory (costimulatory) pathways (PD-1, B7-H3, B7-H4, etc. ) .
In some embodiments, administration of the compounds disclosed herein, or a pharmaceutically acceptable salt thereof, results in an enhancement of T cell function.
“Enhancing T cell function” means to induce, cause, or stimulate a T cell to have a sustained or amplified biological function, or renew or reactivate exhausted or inactive T cells. Examples of enhancing T cell function include: increased secretion of cytokines (e.g., γ-interferon, IL-2, IL-12, and TNFα) , increased proliferation, increased antigen responsiveness (e.g., viral, pathogen, or tumor clearance) relative to such levels before the intervention, and increased effector granule production by CD8 T cells, such as granzyme B. In one embodiment, the level of enhancement is as least 50%, alternatively 60%, 70%, 80%, 90%, 100%, 120%, 150%, 200%. The manner of measuring this enhancement is known to one of ordinary skill in the art.
In some embodiments, the compounds disclosed herein, or a pharmaceutically acceptable salt thereof, are useful in treating T cell dysfunctional disorders. A “T cell dysfunctional disorder” is a disorder or condition of T cells characterized by decreased responsiveness to antigenic stimulation. In a particular embodiment, a T cell dysfunctional disorder is a disorder that is specifically associated with increased kinase activity of HPK1. In another embodiment, a T cell dysfunctional disorder is one in which T cells are anergic or have decreased ability to secrete cytokines, proliferate, or execute cytolytic
activity. In a specific aspect, the decreased responsiveness results in ineffective control of a pathogen or tumor expressing an immunogen. Examples of T cell dysfunctional disorders characterized by T-cell dysfunction include unresolved acute infection, chronic infection, and tumor immunity.
In some embodiments, the compounds disclosed herein, or a pharmaceutically acceptable salt thereof, are used in treating conditions where enhanced immunogenicity is desired, such as increasing tumor immunogenicity for the treatment of cancer.
“Immunogenicity” refers to the ability of a particular substance to provoke an immune response. Tumors are immunogenic and enhancing tumor immunogenicity aids in the clearance of the tumor cells by the immune response.
“Tumor immunity” refers to the process in which tumors evade immune recognition and clearance. Thus, as a therapeutic concept, tumor immunity is “treated” when such evasion is attenuated, and the tumors are recognized and attacked by the immune system. Examples of tumor recognition include tumor binding, tumor shrinkage and tumor clearance.
In some embodiments, provided herein is a method of treating cancer in a subject in need thereof comprising administering to the subject an effective amount of a compound disclosed herein, or a pharmaceutically acceptable salt thereof. In some embodiments, the subject has melanoma. The melanoma may be at early stage or at late stage. In some embodiments, the subject has colorectal cancer. The colorectal cancer may be at early stage or at late stage. In some embodiments, the subject has non-small cell lung cancer. The non-small cell lung cancer may be at early stage or at late stage. In some embodiments, the subject has pancreatic cancer. The pancreatic cancer may be at early stage or late state. In some embodiments, the subject has a hematological malignancy. The hematological malignancy may be at early stage or late stage. In some embodiments, the subject has ovarian cancer. The ovarian cancer may be at early stage or at late stage. In some embodiments, the subject has breast cancer. The breast cancer may be at early stage or at late stage. In some embodiments, the subject has renal cell carcinoma. The renal cell carcinoma may be at early stage or at late stage. In some embodiments, the cancer has elevated levels of T-cell infiltration.
In some embodiments, provided herein is a method of treating a viral infection in a subject in need thereof comprising administering to the subject an effective amount of a compound disclosed herein, or a pharmaceutically acceptable salt thereof. In some embodiments, the viral infection is a chronic viral infection.
In some embodiments, provided herein is a method of increasing the efficacy of vaccination in a patient comprising administering to the patient a compound disclosed herein, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition disclosed herein.
Dosing
In certain embodiments, the compositions containing the compound (s) described herein are administered for therapeutic treatments. In certain therapeutic applications, the compositions are administered to a patient already suffering from a disease or condition, in an amount sufficient to cure or
at least partially arrest at least one of the symptoms of the disease or condition. Amounts effective for this use depend on the severity and course of the disease or condition, previous therapy, the patient’s health status, weight, and response to the drugs, and the judgment of the treating physician.
Routes of Administration
Suitable routes of administration include, but are not limited to, oral, intravenous, rectal, aerosol, parenteral, ophthalmic, pulmonary, transmucosal, transdermal, vaginal, otic, nasal, and topical administration. In addition, by way of example only, parenteral delivery includes intramuscular, subcutaneous, intravenous, intramedullary injections, as well as intrathecal, direct intraventricular, intraperitoneal, intralymphatic, and intranasal injections.
Pharmaceutical Compositions/Formulations
The compounds described herein are administered to a subject in need thereof, either alone or in combination with pharmaceutically acceptable carriers, excipients, or diluents, in a pharmaceutical composition, according to standard pharmaceutical practice. In some embodiments, the compounds described herein are administered to animals.
In another aspect, provided herein are pharmaceutical compositions comprising a compound described herein, or a pharmaceutically acceptable salt thereof, and at least one pharmaceutically acceptable excipient. Pharmaceutical compositions are formulated in a conventional manner using one or more pharmaceutically acceptable excipients that facilitate processing of the active compounds into preparations that can be used pharmaceutically. Proper formulation is dependent upon the route of administration chosen. A summary of pharmaceutical compositions described herein can be found, for example, in Remington: The Science and Practice of Pharmacy, Nineteenth Ed (Easton, Pa.: Mack Publishing Company, 1995) ; Hoover, John E., Remington’s Pharmaceutical Sciences, Mack Publishing Co., Easton, Pennsylvania 1975; Liberman, H.A. and Lachman, L., Eds., Pharmaceutical Dosage Forms, Marcel Decker, New York, N.Y., 1980; and Pharmaceutical Dosage Forms and Drug Delivery Systems, Seventh Ed. (Lippincott Williams &Wilkins1999) , herein incorporated by reference for such disclosure.
Examples
Preparation of Intermediate 1
Step 1. 6-chloro-1- ( (2- (trimethylsilyl) ethoxy) methyl) -1H-pyrrolo [2, 3-b] pyridine
To a solution of 6-chloro-1H-pyrrolo [2, 3-b] pyridine (10 g, 65.54 mmol) in DMF (150 mL) was added NaH (2.88 g, 72.09 mmol, 60%purity) at 0 ℃ in portions. After addition, the mixture was stirred at 30 ℃ under N2 for 1 hr and then cooled down to 0 ℃. SEM-Cl (12.8 mL, 72.09 mmol) was added dropwise and the mixture was stirred at 30 ℃ for 1 hr. The resulting solution was poured into 500 mL of water and extracted with EtOAc (300 mL*3) . The combined organic layers were washed with water (500 mL) , brine (200 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 5%) in petroleum ether to afford int 1-2 (18 g, 63.64 mmol, 97.1%yield) . LC-MS (ESI+) : m/z 283.1 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 8.06 (d, J = 8.0 Hz, 1H) , 7.68 (d, J = 4.0 Hz, 1H) , 7.20 (d, J = 8.0 Hz, 1H) , 6.60 (d, J = 4.0 Hz, 1H) , 5.59 (s, 2H) , 3.52 (t, J = 8.0 Hz, 2H) , 0.84 (t, J = 8.0 Hz, 2H) , 0.00 (s, 9H) .
Step 2. 3, 3-dibromo-6-chloro-1- ( (2- (trimethylsilyl) ethoxy) methyl) -1, 3-dihydro-2H-pyrrolo [2, 3-b] pyridin-2-one
To a solution of 6-chloro-1- ( (2- (trimethylsilyl) ethoxy) methyl) -1H-pyrrolo [2, 3-b] pyridine (18.00 g, 63.64 mmol) in t-BuOH (1000 mL) was added pyridinium hydrobromide perbromide (61.06 g, 190.92 mmol) . After addition, the mixture was stirred at 30 ℃ for 3 hrs. The resulting mixture was poured into water (1500 mL) and extracted with EtOAc (500 mL*3) . The combined organic layers were washed with 5%Na2SO3 solution (500 mL) , followed by brine (1000 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 5%) in petroleum ether to afford int 1-3 (20 g, 43.80 mmol, 68.8%yield) . 1H NMR (400 MHz, DMSO-d6) δ 8.22 (d, J = 8.0 Hz, 1H) , 7.43 (d, J = 8.0 Hz, 1H) , 5.16 (s, 2H) , 3.64 (t, J = 8.0 Hz, 2H) , 0.89 (t, J = 8.0 Hz, 2H) , 0.00 (s, 9H) .
Step 3. 6-chloro-1- ( (2- (trimethylsilyl) ethoxy) methyl) -1, 3-dihydro-2H-pyrrolo [2, 3-b] pyridin-2-one
To a solution of 3, 3-dibromo-6-chloro-1- ( (2- (trimethylsilyl) ethoxy) methyl) -1, 3-dihydro-2H-pyrrolo [2, 3-b] pyridin-2-one (20.00 g, 43.80 mmol) in THF (200 mL) was added zinc powder (14.32 g,
219.00 mmol) , then a solution of NH4Cl (11.71 g, 219.00 mmol) in H2O (66 mL) was added. After addition, the resulting mixture was stirred at 50 ℃ for 0.5 hr. After cooling to room temperature, the reaction mixture was filtered and the cake was washed with EtOAc (10 mL*3) , the filtrate was extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (150 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford int 1-4 (10 g, 33.46 mmol, 76.4%yield) . LC-MS (ESI+) : m/z 299.2 (M+H) +.
Step 4. 6'-chloro-1'- ( (2- (trimethylsilyl) ethoxy) methyl) -4, 5-dihydro-2H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one
To a solution of 6-chloro-1- ( (2- (trimethylsilyl) ethoxy) methyl) -1, 3-dihydro-2H-pyrrolo [2, 3-b] pyridin-2-one (2.00 g, 6.69 mmol) in CH3CN (40 mL) was added Cs2CO3 (6.54 g, 20.08 mmol) , and then a solution of 2-chloro-1- [ (chloromethyl) oxy] ethane (1.01 mL, 10.04 mmol) in CH3CN (2 mL) was added dropwise at 20 ℃. After addition, the mixture was stirred at 30 ℃ under N2 for 1 hr. The resulting solution was poured into water (80 mL) and extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford int 1-5 (390 mg, 1.10 mmol, 16.4%yield) . LC-MS (ESI+) : m/z 355.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 7.76 (d, J = 8.0 Hz, 1H) , 7.20 (d, J = 8.0 Hz, 1H) , 5.06 (s, 2H) , 4.16-4.04 (m, 2H) , 3.91-3.87 (m, 1H) , 3.77-3.70 (m, 1H) , 3.51 (t, J = 8.0 Hz, 2H) , 2.40-2.28 (m, 1H) , 2.24-2.13 (m, 1H) , 0.86 (t, J = 8.0 Hz, 2H) , 0.00 (s, 9H) .
Step 5. 6'-chloro-4, 5-dihydro-2H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one
To a solution of 6'-chloro-1'- (5, 5-dimethyl-2-oxa-5-silahex-1-yl) -2, 2', 4, 5-tetrahydro-1'H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridine] -2'-one (390 mg, 1.10 mmol) in DCM (2 mL) was added TFA (2 mL, 26.12 mmol) . After addition, the mixture was stirred at 30 ℃ for 1 hr. The resulting mixture was diluted with DCM (30 mL) and adjusted pH to ~7 with saturated NaHCO3 and then washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 33%) in petroleum ether to afford int 1-6 (140 mg, 0.62 mmol, 56.7%yield) . LC-MS (ESI+) : m/z 225.3 (M+H) +.
Step 6. 6'-chloro-1', 2', 4, 5-tetrahydro-2H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridine]
To a solution of 6'-chloro-4, 5-dihydro-2H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one (140 mg, 0.62 mmol) in THF (1 mL) was added BH3 (1 M in THF, 6.23 mL, 6.23 mmol) at 0 ℃. After addition, the mixture was stirred at 30 ℃ under N2 for 1 hr. The resulting mixture was quenched by 40 mL of MeOH at 0 ℃ and the solution was stirred at 30 ℃ for 0.5 hr. The resulting mixture was concentrated under reduced pressure to give a residue, which was purified by prep-TLC (DCM/MeOH=20: 1, v/v) to afford int 1 (76 mg, 0.36 mmol, 57.9%yield) . LC-MS (ESI+) : m/z 211.3 (M+H) +.
Preparation of Intermediate 2
Step 1. 6'-chloro-1'- ( (2- (trimethylsilyl) ethoxy) methyl) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one
To a solution of 6-chloro-1- ( (2- (trimethylsilyl) ethoxy) methyl) -1, 3-dihydro-2H-pyrrolo [2, 3-b] pyridin-2-one (4.00 g, 13.39 mmol) in DMF (80 mL) were added Cs2CO3 (13.08 g, 40.16 mmol) and a solution of 1-bromo-2- [ (2-bromoethyl) oxy] ethane (4.04 g, 17.40 mmol) in DMF (10 mL) . After addition, the mixture was stirred at 25 ℃ for 30 mins. Then the reaction mixture was poured into H2O (50 mL) , extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by flash silica gel chromatography (40 gSilica Flash Column, Eluent of 0-50%Ethyl acetate/Petroleum ether gradient @50 mL/min) to afford int 2-1 (4 g, 10.84 mmol, 81%yield) . LC-MS (ESI+) : m/z 369.3 (M+H) +.
Step 2. 6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one
To a solution of 6'-chloro-1'- ( (2- (trimethylsilyl) ethoxy) methyl) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one (4.00 g, 10.84 mmol) in DCM (20 mL) was added TFA (20 mL, 261.18 mmol) dropwise at 25 ℃. After addition, the mixture was stirred at 25 ℃ for 1 hr. The resulting mixture was diluted with DCM (50 mL) , adjusted pH to ~7-8 with saturated NaHCO3, then washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated to give a residue. The residue was treated with 10 mL of NH3 in MeOH (7 M) at 25 ℃ for 0.5 hr. Then, the resulting mixture was concentrated under reduced pressure to give a residue, which was triturated with Petroleum ether/Ethyl acetate (1: 1, v/v, 10 mL) at 25 ℃ for 0.5 hr, filtered and the cake was washed with this solvent (3 mL*2) , collected the solid and dried in vacuum to afford int 2-2 (1.4 g, 5.87 mmol, 54.1%yield) . LC-MS (ESI+) : m/z 239.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 11.29 (brs, 1H) , 7.99 (d, J = 8.0 Hz, 1H) , 7.07 (d, J =8.0 Hz, 1H) , 4.05-3.93 (m, 2H) , 3.85-3.74 (m, 2H) , 1.86-1.62 (m, 4H) .
Step 3. 6'-chloro-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine]
To a solution of 6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one (0.5 g, 2.10 mmol) in THF (2 mL) was added BH3 (20.95 mL, 20.95 mmol, 1 M in THF) dropwise at 0 ℃. After addition, the mixture was stirred at 25 ℃ for 1 hr under N2. The reaction was quenched by addition of MeOH (50 mL) at 0 ℃ and the resulting mixture was concentrated to give a residue. The residue was triturated with Petroleum ether/Ethyl acetate (1: 1, v/v, 5 mL) at 25 ℃ for 1 hr, then filtered and the cake was washed with this solvent (1 mL*2) , collected the solid and dried in vacuum to afford int
2 (300 mg, 1.34 mmol, 63.7%yield) . LC-MS (ESI+) : m/z 225.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 7.33 (d, J = 8.0 Hz, 1H) , 6.93 (s, 1H) , 6.46 (d, J = 8.0 Hz, 1H) , 3.89-3.72 (m, 2H) , 3.53-3.42 (m, 4H) , 1.86-1.71 (m, 2H) , 1.59-1.49 (m, 2H) .
Preparation of Intermediate 3&4
Step 1. Methyl 6-chloro-3-methylpicolinate
To a solution of 6-chloro-3-methylpyridine-2-carboxylic acid (5.00 g, 29.14 mmol) in MeOH (50 mL) was added SOCl2 (4 mL, 58.27 mmol) dropwise at 20 ℃. After addition, the reaction was stirred at 70 ℃ for 1 hr. After cooling to room temperature, the resulting solution was poured into ice water (30 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 9%) in petroleum ether to afford int 3-1 (4.68 g, 86.5%yield) . LC-MS (ESI+) : m/z 186.1 (M+H) +.
Step 2. Methyl 3- (bromomethyl) -6-chloropicolinate
To a solution of methyl 6-chloro-3-methylpicolinate (4.68 g, 25.21 mmol) in MeCN (75 mL) was added NBS (6.70 g, 37.82 mmol) and AIBN (0.40 g, 2.52 mmol) . After addition, the reaction was stirred at 90 ℃ for 18 hrs. After cooling to room temperature, the resulting solution was poured to water (20 mL) and extracted with EtOAc (30 mL*3) , the combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was
purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 6%) in petroleum ether to afford int 3-2 (3.00 g, 45%yield) . LC-MS (ESI+) : m/z 264.2 (M+H) +.
Step 3. 2-chloro-6- (4-methoxybenzyl) -5, 6-dihydro-7H-pyrrolo [3, 4-b] pyridin-7-one
To a solution of methyl 3- (bromomethyl) -6-chloropyridine-2-carboxylate (3 g, 11.34 mmol) in THF (45 mL) was added (4-methoxyphenyl) methanamine (1.60 g, 11.34 mmol) and DIEA (1.90 mL, 11.34 mmol) . After addition, the reaction was stirred at 30 ℃ for 18 hrs. The resulting solution was poured to water (20 mL) and extracted with EtOAc (40 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 4%) in dichloromethane to afford int 3-3 (2.66 g, 81.2%yield) . LC-MS (ESI+) : m/z 289.2 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 7.73 (d, J = 8.0 Hz, 1H) , 7.46 (d, J = 8.0 Hz, 1H) , 7.29-7.26 (m, 2H) , 6.91-6.88 (m, 2H) , 4.81 (s, 2H) , 4.25 (s, 2H) , 3.81 (s, 3H) .
Step 4. 2'-chloro-6'- (4-methoxybenzyl) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
To a solution of 2-chloro-6- [ (4-methoxyphenyl) methyl] -6, 7-dihydro-5H-pyrrolo [3, 4-b] pyridin-7-one (2.00 g, 6.93 mmol) in DMF (30 mL) was added NaH (0.8 g, 20.00 mmol, 60%purity) in portions at 0 ℃ under N2 for 0.5 hr. 1-bromo-2- [ (2-bromoethyl) oxy] ethane (1.8 g, 7.62 mmol) was added dropwise and the reaction was stirred at 25 ℃ for 3 hrs. The resulting mixture was poured ice water (20 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 3-4 (1.8 g, 72.4%yield) . LC-MS (ESI+) : m/z 359.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 8.23 (d, J = 8.0 Hz, 1H) , 7.49 (d, J = 8.0 Hz, 1H) , 7.30-7.26 (m, 2H) , 6.84-6.81 (m, 2H) , 4.82 (s, 2H) , 4.07-4.03 (m, 2H) , 3.91-3.85 (m, 2H) , 3.78 (s, 3H) , 2.38-2.30 (m, 2H) , 1.34-1.31 (m, 2H) .
Step 5. 2'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
To a solution of 2'-chloro-6'- [ (4-methoxyphenyl) methyl] -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] -7'-one (1.8 g, 5.02 mmol) in MeCN (30 mL) and H2O (10 mL) was added Ceric ammonium nitrate (8.3 g, 15.05 mmol) 25 ℃. After addition, the reaction was stirred at 25 ℃ for 1 hr under N2 atmosphere. To the reaction mixture was slowly added sodium hydroxide solution (1 M, 10 mL) until pH~9. The mixture was filtered through Buchner funnel, and the filter cake was collected, dried in vacuum, and then purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 3-5 (800 mg, 66.8%yield) . LC-MS (ESI+) : m/z 239.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 9.96 (s, 1H) , 8.31 (d, J = 8.0 Hz, 1H) , 7.72 (d, J = 8.0 Hz, 1H) , 3.90-3.74 (m, 4H) , 2.25-2.18 (m, 2H) , 1.40-1.36 (m, 2H) .
Step 6. 2'-chloro-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2'-chloro-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] -7'-one (700 mg, 2.93 mmol) in THF (7 mL) was added Borane tetrahydrofuran complex solution (1.0 M, 28
mL) in THF (10 mL) dropwise under N2 at 0 ℃. After addition, the mixture was stirred at 80 ℃ for 6 hrs under N2 atmosphere. After cooling to room temperature, to the resulting mixture was added MeOH (5 mL) dropwise at 0 ℃ and stirred at 25 ℃ for 5 mins. The resulting mixture was poured into water (20 mL) and extracted with DCM (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 3-6 (326 mg, 24.7%yield) . LC-MS (ESI+) : m/z 225.1 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 8.20 (d, J = 8.0 Hz, 1H) , 7.43 (d, J = 8.0 Hz, 1H) , 7.21 (s, 1H) , 4.26-4.21 (m, 1H) , 4.02-3.96 (m, 3H) , 3.84-3.79 (m, 1H) , 3.59-3.54 (m, 1H) , 2.43-2.39 (m, 1H) , 2.24-2.20 (m, 1H) , 1.78-1.75 (m, 1H) , 1.61-1.57 (m, 1H) .
Step 7. 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine
To a solution of 2'-chloro-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] (150 mg, 0.66 mmol) in MeOH (8 mL) were added paraformaldehyde (190 mg, 3.39 mmol) and HOAc (0.05 mL, 0.22 mmol) at 25 ℃. After addition, the mixture was stirred at 25 ℃ for 0.5 hr, sodium cyanoborohydride (128 mg, 2.03 mmol) was added. The resulting mixture was stirred at 25 ℃ for 1 hr, and then the resulting mixture was stirred at 50 ℃ for 2.5 hrs. The resulting solution was poured to sodium bicarbonate in water (20 mL) , and extracted with DCM (20 mL*3) , the combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 1.4%) in dichloromethane to afford int 3 (76 mg, 47.2%yield) . LC-MS (ESI+) : m/z 239.1 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 8.17 (d, J = 8.0 Hz, 1H) , 7.32 (d, J = 8.0 Hz, 1H) , 3.90 (s, 2H) , 3.87-3.83 (m, 2H) , 3.79-3.76 (m, 2H) , 2.51 (s, 3H) , 1.96-1.92 (m, 2H) , 1.49-1.45 (m, 2H) .
Step 8. tert-butyl (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl)carbamate
To a solution of 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] (150 mg, 0.63 mmol) and tert-butyl carbamate (220 mg, 1.88 mmol) in 1, 4-dioxane (3.5 mL) were added BrettPhos Pd G3 (114 mg, 0.12 mmol) and Cs2CO3 (409 mg, 1.25 mmol) at 20 ℃. After addition, the mixture was degassed and purged with N2 for 3 times, and then the mixture was stirred at 120 ℃ for 2.5 hrs under N2 atmosphere. After cooling to room temperature, the resulting solution was poured to water (20 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (DCM/MeOH= 20: 1, v/v) to afford int 4-1 (50 mg, 17%yield) . LC-MS (ESI+) : m/z 320.3 (M+H) +.
Step 9. 6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-amine
To a solution of 2-methylpropan-2-yl [ (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] -2'-yl) amino] methanoate (45 mg, 0.14 mmol) in DCM (3 mL) was added TFA (1 mL, 13.46 mmol) at 0 ℃. After addition, the mixture was stirred at 25 ℃ for 3 hrs. The resulting solution was poured to saturated sodium bicarbonate solution (10 mL) , and extracted with DCM (20
mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by Prep-TLC (DCM/MeOH =10: 1, v/v) to afford int 4 (10 mg, 22%yield) . LC-MS (ESI+) : m/z 220.4 (M+H) +.
Preparation of Intermediate 5
Step 1. 8- ( (diphenylmethylene) amino) -5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one
To a solution of 8-chloro-5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one (500 mg, 1.13 mmol) in 1, 4-dioxane (10 mL) were added diphenylmethanimine (0.38 mL, 2.25 mmol) , Pd2 (dba) 3 (103.1 mg, 0.11 mmol) , Xantphos (130.3 mg, 0.23 mmol) and Cs2CO3 (733.9 mg, 2.25 mmol) . After addition, the resulting mixture was bubbled with N2 for 2 minutes and stirred at 130 ℃ under N2 for 5 hr. After cooling to room temperature, the reaction mixture was poured into 10 mL of water and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressured to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 100%) in petroleum ether to afford int 5-1 (533 mg, 0.72 mmol, 64.3%yield) . LC-MS (ESI+) : m/z 589.6 (M+H) +.
Step 2. 8-amino-5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one
To a solution of 8- ( (diphenylmethylene) amino) -5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one (533 mg, 0.91 mmol) in MeOH (15 mL) were added NaOAc (148.5 mg, 1.81 mmol) and then NH2OH. HCl (113.2 mg, 1.63 mmol) at 30 ℃. After addition, the resulting mixture was stirred at 30 ℃ for 0.5 hr. The reaction mixture was quenched by 20 mL of H2O and adjusted pH to ~8 with saturated NaHCO3, extracted with DCM (10 mL*2) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 100%) in petroleum ether to afford int 5 (283 mg, 0.57 mmol, 62.6%yield) . LC-MS (ESI+) :
m/z 425.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 7.86-7.83 (m, 1H) , 7.58 (s, 1H) , 7.53-7.50 (m, 1H) , 7.38 (d, J = 8.0 Hz, 1H) , 7.27 (d, J = 8.0 Hz, 1H) , 6.93-6.88 (m, 1H) , 6.76 (d, J = 8.0 Hz, 1H) , 5.77 (d, J = 8.0 Hz, 1H) , 5.26 (s, 2H) , 3.60 (t, J = 8.0 Hz, 2H) , 0.89 (t, J = 8.0 Hz, 2H) , 0.00 (s, 9H) .
Preparation of Intermediate 6
Step 1. N- (3-oxocyclohexyl) benzamide
To a mixture of benzamide (37.29 mL, 412.75 mmol) in cyclohex-2-en-1-one (79.90 mL, 825.49 mmol) was added 4-methylbenzenesulfonic acid (7.11 g, 41.28 mmol) at 30 ℃. After addition, the mixture was stirred at 30 ℃ under ultrasound for 1 hr. The reaction mixture was purified by column chromatography on silica gel eluting with ethyl acetate (from 33%to 50%) in petroleum ether to afford int 6-1 (55 g, 253.14 mmol, 61.3%yield) . 1H NMR (400 MHz, CDCl3) δ 7.78-7.70 (m, 2H) , 7.54-7.47 (m, 1H) , 7.46-7.38 (m, 2H) , 6.17-6.15 (m, 1H) , 4.52-4.38 (m, 1H) , 2.86-2.75 (m, 1H) , 2.49-2.26 (m, 3H) , 2.24-2.13 (m, 1H) , 2.08-1.96 (m, 1H) , 1.88-1.75 (m, 2H) .
Step 2. 5-benzamidocyclohex-1-en-1-yl trifluoromethanesulfonate
To a solution of sodium bis (trimethylsilyl) azanide (40.27 mL, 80.53 mmol, 2 M in THF) in THF (60 mL) was added a solution of N- (3-oxocyclohexyl) benzamide (7.00 g, 32.21 mmol) in THF (50 mL) at -65 ℃ under N2 within 20 mins. After addition, the resulting mixture was stirred at -65 ℃ for 0.5 hr, then a solution of N- [dioxo (trifluoromethyl) -λ6-sulfanyl] -1, 1, 1-trifluoro-N-phenylmethanesulfonamide (15.0 g, 41.88 mmol) in THF (20 mL) was added dropwise and the mixture was stirred at -65 ℃ for more 1 hr. After warming up to 0 ℃, the mixture was stirred for 0.5 hr. Then the resulting reaction mixture was poured into H2O (300 mL) and extracted with EtOAc (300 mL*3) . The combined organic layers were washed with brine (300 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by flash silica gel chromatography (80 g Silica Flash Column, Eluent of 0-25%Ethyl acetate/Petroleum ether gradient, additive 10%DCM @40 mL/min) to afford int 6-2 (5.9 g, 16.89 mmol, 52.4%yield) . LC-MS (ESI+) : m/z 350.2 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 8.46 (d, J = 8.0 Hz, 1H) , 7.90-7.80 (m, 2H) , 7.58-7.43 (m, 3H) , 6.04-5.91 (m, 1H) , 4.37-4.05 (m, 1H) , 2.68-2.57 (m, 1H) , 2.56-2.46 (m, 1H) , 2.42-2.21 (m, 2H) , 1.90-1.80 (m, 1H) , 1.68-1.51 (m, 1H) .
Step 3. N- (3- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) cyclohex-3-en-1-yl) benzamide
To a solution of 5- (benzoylamino) cyclohex-1-en-1-yl trifluoromethanesulfonate (1.00 g, 2.86 mmol) and 4, 4, 5, 5-tetramethyl-2- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1, 3, 2-dioxaborolane (1.1 g, 4.29 mmol) in 1, 4-dioxane (15 mL) were added Pd (dppf) Cl2. DCM (0.1 g, 0.14 mmol) and KOAc (0.8 g, 8.59 mmol) . After addition, the reaction mixture was purged with N2 for 3 mins and stirred at 100 ℃for 6 hrs under N2. After cooling to room temperature, the reaction mixture was filtered and the cake was washed with EtOAc (10 mL*3) . The combined organic layers were concentrated to give int 6 (2 g, 2.75
mmol, purity: 45%) as a crude, which was used in next step directly without purification. LC-MS (ESI+) : m/z 328.1 (M+H) +
Preparation of Intermediate 7
Step 1. N- (3-bromophenyl) cyclohexanecarboxamide
To a solution of 3-bromoaniline (1.27 mL, 11.63 mmol) in DCM (20 mL) were added TEA (2.10 mL, 15.12 mmol) and DMAP (0.10 g, 1.16 mmol) , cyclohexanecarbonyl chloride (1.90 g, 12.79 mmol) at 20 ℃. After addition, the mixture was stirred at 20 ℃ for 12 hrs. The resulting mixture was filtered and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 30%to 50%) in petroleum ether to afford int 7-1 (3.80g, 10.77 mmol, 92.6%yield) . LCMS: (ESI+) : m/z 282.2 (M+H) +.
Step 2. N- (3- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) phenyl) cyclohexanecarboxamide
To a solution of N- (3-bromophenyl) cyclohexanecarboxamide (3.80 g, 13.47 mmol) in 1, 4-dioxane (40 mL) were added KOAc (4.0 g, 40.40 mmol) , Pd (dppf) Cl2. CH2Cl2 (1.1 g, 1.35 mmol) and 4, 4, 5, 5-tetramethyl-2- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1, 3, 2-dioxaborolane (4.8 g, 18.85 mmol) at 20 ℃. After addition, the resulting mixture was purged with N2 for 3 times and stirred at 100 ℃ under N2 for 16 hrs. After cooling to room temperature, the resulting mixture was poured into 100 mL of water and extracted with EtOAc (50 mL*3) . The combined organic layers were dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 25%to 50%) in petroleum ether to afford int 7 (4.50 g, 12.71 mmol, 94.4%yield) . LC-MS (ESI+) : m/z 330.4 (M+H) +.
Preparation of Intermediate 8
Step 1. N- (4-bromo-3-fluorophenyl) cyclohexanecarboxamide
To a solution of N- (4-bromo-3-fluorophenyl) cyclohexanecarboxamide (5 g, 26.31 mmol) in DCM (60 mL) was added cyclohexanecarbonyl chloride (4.20 mL, 31.57 mmol) and TEA (11 mL, 78.94 mmol) at 0 ℃. After addition, the mixture was stirred at 25 ℃ for 30 min. The resulting solution was poured into water (40 mL) and extracted with DCM (30 mL x 3) , the combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 25%) in dichloromethane to afford int 8-1 (7.7 g, 92.6%yield) . LC-MS (ESI+) : m/z 300.2 (M+H) +.
Step 2. N- (3-fluoro-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) phenyl) cyclohexanecarboxamide
To a solution of N- (4-bromo-3-fluorophenyl) cyclohexanecarboxamide (5.00 g, 0.55 mmol) and 4, 4, 5, 5-tetramethyl-2- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1, 3, 2-dioxaborolane (5.1 g, 19.98 mmol) in dioxane (60 mL) were added potassium acetate (4.90 g, 49.96 mmol) and Pd (dppf) Cl2 (1.20 g, 1.66 mmol) at 25 ℃. After addition, the mixture was degassed and purged with N2 for 3 times. Then the mixture was stirred at 110 ℃ for 8 hrs under N2 atmosphere. After cooling to room temperature, the resulting solution was poured into water (30 mL) and extracted with EtOAc (30 mL x 3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in dichloromethane to afford int 8 (4.8 g, 80.5%yield) . LC-MS (ESI+) : m/z 348.4 (M+H) +.
Preparation of Intermediate 9
Step 1. 5, 5-bis (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2-chloro-6- (4-methoxybenzyl) -5, 6-dihydro-7H-pyrrolo [3, 4-b] pyridin-7-one
To a solution of 2-chloro-6- (4-methoxybenzyl) -5, 6-dihydro-7H-pyrrolo [3, 4-b] pyridin-7-one (10.00 g, 34.60 mmol) in DMF (100 mL) was added NaH (3.50 g, 86.60 mmol, 60%purity) in portions at 0 ℃ under N2 atmosphere. After addition, the mixture was stirred at 20 ℃ under N2 for 1 hr. Then, to the reaction was added (2-bromoethoxy) (tert-butyl) dimethylsilane (18.7 mL, 86.60 mmol) dropwise within
10 mins. The resulting mixture was stirred at 20 ℃ under N2 for 1 hr. The reaction was poured into 1000 mL of water and extracted with EtOAc (300 mL*5) . The combined organic layers were washed with water (500 mL*2) , followed by brine (1000 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 40%) in petroleum ether to afford int 9-1 (9.00 g, 14.87 mmol, 43.0%yield) as a yellow solid. LC-MS (ESI+) : m/z 605.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.16 (d, J = 8.0 Hz, 1H) , 7.64 (d, J = 8.0 Hz, 1H) , 7.49 (d, J = 8.0 Hz, 2H) , 6.86 (d, J = 8.0 Hz, 2H) , 4.55 (s, 2H) , 3.70 (s, 3H) , 2.96 -2.84 (m, 2H) , 2.80 -2.70 (m, 2H) , 2.27 (t, J = 8.0 Hz, 4H) , 0.61 (s, 18H) , 0.32 (s, 6H) , 0.35 (s, 6H) .
Step 2. 2-chloro-5, 5-bis (2-hydroxyethyl) -6- (4-methoxybenzyl) -5, 6-dihydro-7H-pyrrolo [3, 4-b] pyridin-7-one
To a solution of 5, 5-bis (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2-chloro-6- (4-methoxybenzyl) -5, 6-dihydro-7H-pyrrolo [3, 4-b] pyridin-7-one (9.00 g, 14.87 mmol) in THF (90 mL) was added TBAF (44.60 mL, 44.60 mmol, 1 M in THF) . The reaction mixture was stirred at 25 ℃ for 2 hrs. The resulting mixture was concentrated under reduced pressure to remove off most of the solvent, then poured into H2O (200 mL) and extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (250 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 9-2 (5.00 g, 13.27 mmol, 89.0%yield) as a yellow solid. LC-MS (ESI+) : m/z 377.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.19 (d, J = 8.0 Hz, 1H) , 7.72 (d, J = 8.0 Hz, 1H) , 7.49 (d, J = 8.0 Hz, 2H) , 6.91 (d, J = 8.0 Hz, 2H) , 4.59 (s, 2H) , 4.13 (t, J = 4.0 Hz, 2H) , 3.77 (s, 3H) , 2.85 -2.74 (m, 2H) , 2.71 -2.58 (m, 2H) , 2.22 (t, J = 8.0 Hz, 4H) .
Step 3. (2-chloro-6- (4-methoxybenzyl) -7-oxo-6, 7-dihydro-5H-pyrrolo [3, 4-b] pyridine-5, 5-diyl) bis (ethane-2, 1-diyl) dimethanesulfonate
To a solution of 2-chloro-5, 5-bis (2-hydroxyethyl) -6- (4-methoxybenzyl) -5, 6-dihydro-7H-pyrrolo [3, 4-b] pyridin-7-one (5.00 g, 13.27 mmol) in DCM (50 mL) was added TEA (9.2 mL, 66.35 mmol) , followed by addition of MsCl (2.57 mL, 33.17 mmol) dropwise at 0 ℃. After addition, the mixture was stirred at 20 ℃ for 1 hr. The resulting mixture was poured into 100 mL of water and extracted with DCM (50 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated to afford int 9-3 (7.00 g, crude) as a brown solid, which was used in next step directly without purification. LC-MS (ESI+) : m/z 533.0 [M+H] +.
Step 4. 2'-chloro-6'- (4-methoxybenzyl) spiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
A mixture of (2-chloro-6- (4-methoxybenzyl) -7-oxo-6, 7-dihydro-5H-pyrrolo [3, 4-b] pyridine-5, 5-diyl) bis (ethane-2, 1-diyl) dimethanesulfonate (7 g, 13.13 mmol) in NH3 in MeOH (7 M) (70 mL) was stirred at 80 ℃ for 12 hrs in a sealed tube. After cooling to room temperature, the reaction mixture was concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 10%) in dichloromethane to afford int 9-4 (3.80 g, 10.62 mmol, 81.0%yield) as a yellow solid. LC-MS (ESI+) : m/z 358.0 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.67 (d, J = 8.0 Hz,
1H) , 8.15 (s, 1H) , 7.77 (d, J = 8.0 Hz, 1H) , 7.27 (d, J = 8.0 Hz, 2H) , 6.87 (d, J = 8.0 Hz, 2H) , 4.69 (s, 2H) , 3.72 (s, 3H) , 3.40 -3.24 (m, 4H) , 2.41 -2.31 (m, 2H) , 1.60 -1.45 (m, 2H) .
Step 5. tert-butyl 2'-chloro-6'- (4-methoxybenzyl) -7'-oxo-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] -1-carboxylate
To a solution of 2'-chloro-6'- (4-methoxybenzyl) spiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one (3.80 g, 10.62 mmol) in DCM (60 mL) were added TEA (3.00 mL, 21.25 mmol) and (Boc) 2O (3.66 mL, 15.93 mmol) . The resulting mixture was stirred at 20 ℃ for 1 hr and diluted with DCM (60 ml) . Then, the reaction was washed with H2O (100 mL) , followed by brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 100%) in petroleum ether to afford int 9-5 (3.40 g, 7.42 mmol, 70.0%yield) as a white solid. LC-MS (ESI+) : m/z 457.9 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.69 (d, J = 8.0 Hz, 1H) , 7.68 (d, J = 8.0 Hz, 1H) , 7.23 (d, J = 8.0 Hz, 2H) , 6.86 (d, J = 8.0 Hz, 2H) , 4.73 (s, 2H) , 4.10 -3.90 (m, 2H) , 3.72 (s, 3H) , 3.35 -3.15 (m, 2H) , 2.18 -2.00 (m, 2H) , 1.43 (s, 9H) , 1.40 -1.33 (m, 2H) .
Step 6. tert-butyl 2'-chloro-7'-oxo-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] -1-carboxylate
To a solution of 2'-chloro-6'- (4-methoxybenzyl) -7'-oxo-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] -1-carboxylate (3.40 g, 7.42 mmol) in ACN (22 mL) and H2O (8 mL) was added CAN (12.20 g, 22.27 mmol) in portions at 0 ℃. The resulting mixture was stirred at 20 ℃ for 1 hr. The resulting mixture was poured into H2O (100 mL) and adjusted pH to ~7 with Na2CO3 powder. Then, the reaction was filtered and the filtrate was extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 100%) in petroleum ether to afford int 9-6 (2.00 g, 5.92 mmol, 80%yield) as a white solid. LC-MS (ESI+) : m/z 338.0 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.89 (s, 1H) , 8.35 (d, J = 8.0 Hz, 1H) , 7.74 (d, J = 8.0 Hz, 1H) , 4.08 -3.93 (m, 2H) , 3.20 (d, J = 5.3 Hz, 2H) , 2.17 -2.04 (m, 2H) , 1.46 (s, 9H) , 1.45 -1.41 (m, 2H) .
Step 7. 2'-chloro-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of tert-butyl 2'-chloro-7'-oxo-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] -1-carboxylate (2.30 g, 6.81 mmol) in DMF (40 mL) was added NaH (0.68 g, 17.02 mmol, 60%purity) in portions at 0 ℃. The mixture was stirred at 20 ℃ under N2 for 1 hr. Then MeI (0.64 mL, 10.21 mmol) was added dropwise at 0 ℃. After addition, the reaction mixture was stirred at 20 ℃ under N2 for 1 hr. The resulting mixture was poured into H2O (200 mL) , filtered and the cake was washed with H2O (50 mL) . Collected the cake and dried in vacuum to afford int 9-7 (1.80 g, 5.12 mmol, 75.0%yield) as a white solid. LC-MS (ESI+) : m/z 352.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.66 (d, J = 8.0 Hz, 1H) , 7.64 (d, J = 8.0 Hz, 1H) , 4.15 -3.99 (m, 2H) , 3.33 -3.24 (m, 2H) , 2.97 (s, 3H) , 2.18 -2.07 (m, 2H) , 1.43 (s, 9H) , 1.42 -1.37 (m, 2H) .
Step 8. 2'-chloro-6'-methyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] (int9)
To a solution of 2'-chloro-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] (1.7 g, 4.83 mmol) in THF (17 mL) were added NaBH4 (913 mg, 24.16 mmol) , then BF3*Et2O (8.53 mL, 33.83 mmol) was added dropwise at 0 ℃. The resulting mixture was stirred at 30 ℃ under N2 for 8 hrs. After cooling to room temperature, the reaction mixture was quenched by addition of MeOH (30 mL) at 20 ℃. Then, the mixture stirred at 20 ℃ for 15 mins and concentrated to give a residue, which was diluted with 15 mL of water and acidified the pH to 1~2. The mixture was stirred at 20 ℃ for 0.5 hr and adjusted pH ~9, concentrated to under reduced pressure to afford int 9 (7.00 g, crude, purity~15%) as a white solid, which was used in next step without purification. LC-MS (ESI+) : m/z 238.2 [M+H] +.
Preparation of Intermediate 10
Step 1. 3-bromo-6-chloropicolinoyl chloride
A solution of 3-bromo-6-chloropicolinic acid (6.00 g, 25.38 mmol) in SOCl2 (80 mL) was stirred at 80 ℃ for 1 hr. After cooling to room temperature, the reaction was concentrated to afford int 10-1 (9.30 g, crude) , which was used in next step directly without purification.
Step 2. N- (4-methoxybenzyl) -1, 4-dioxaspiro [4.5] dec-7-en-8-amine
To a solution of 1, 4-dioxaspiro [4.5] decan-8-one (5.00 g, 32.01 mmol) in toluene (70 mL) was added (4-methoxyphenyl) methanamine (4.60 g, 33.6 mmol) . The reaction mixture stirred at 130 ℃ for 16 hrs. After cooling to room temperature, the reaction was concentrated to afford int 10-2 (9.60 g, crude) , which was used in next step directly without purification.
Step 3. 3-bromo-6-chloro-N- (4-methoxybenzyl) -N- (1, 4-dioxaspiro [4.5] dec-7-en-8-yl) picolinamide
To a solution of N- (4-methoxybenzyl) -1, 4-dioxaspiro [4.5] dec-7-en-8-amine (9.60 g, 36.46 mmol) in toluene (80 mL) were added 3-bromo-6-chloropicolinoyl chloride (8.90 g, 34.87 mmol) and TEA (14.5 mL, 104.60 mmol) . The resulting mixture was stirred at 120 ℃ for 18 hrs. After cooling to room temperature, the mixture was poured into water (100 mL) and extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 100%) in petroleum ether to afford int 10-3 (8.58 g, 11.16 mmol, 32.0%yield) as a yellow oil. LC-MS (ESI+) : m/z 493.0 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.13 (d, J = 8.0 Hz, 1H) , 7.47 (d, J = 8.0 Hz, 1H) , 7.29 (d, J = 8.0 Hz, 2H) , 6.91 (d, J = 8.0
Hz, 2H) , 5.22 -5.16 (m, 1H) , 4.67 (s, 2H) , 3.78 -3.75 (m, 2H) , 3.74 (s, 3H) , 3.71 -3.67 (m, 2H) , 2.30 -2.22 (m, 2H) , 1.84 -1.77 (m, 2H) , 1.51 (t, J = 8.0 Hz, 2H) .
Step 4. 2-chloro-6- (4-methoxybenzyl) dispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” -[1, 3] dioxolan] -7 (6H) -one
To a solution of 3 3-bromo-6-chloro-N- (4-methoxybenzyl) -N- (1, 4-dioxaspiro [4.5] dec-7-en-8-yl) picolinamide (4.40 g, 8.91 mmol) in toluene (100 mL) were added tributyltin hydride (4.79 mL, 17.82 mmol) and AIBN (0.30 g, 1.78 mmol) . The resulting mixture was degassed and purged with N2 for 3 times and stirred at 130 ℃ for 3.5 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into H2O (100 mL) and then extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford int 10-4 (1.25 g, 2.56 mmol, 28.7%) as a yellow solid. LC-MS (ESI+) : m/z 415.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.42 (d, J = 8.0 Hz, 1H) , 7.69 (d, J = 8.0 Hz, 1H) , 7.22 (d, J = 8.0 Hz, 2H) , 6.88 (d, J = 8.0 Hz, 2H) , 4.68 (s, 2H) , 3.93 (s, 4H) , 3.73 (s, 3H) , 2.24 (td, J = 12.0, 4.0 Hz, 2H) , 1.99 (td, J = 12.0, 4.0 Hz, 2H) , 1.80 (d, J = 12.0 Hz, 2H) , 1.59 (t, J = 8.0 Hz, 2H) .
Step 5. 2-chlorodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -7 (6H) -one
To a solution of 2-chloro-6- (4-methoxybenzyl) dispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -7 (6H) -one (0.60 g, 1.45 mmol) in MeCN (9 mL) and H2O (3 mL) was added ceric ammonium nitrate (2.38 g, 4.34 mmol) at 0 ℃ in portions. The resulting mixture was stirred at 20 ℃ for 1 hr. After that, the reaction mixture was quenched by saturated aq. NaHCO3 (30 mL) at 0 ℃, then extracted with EtOAc (50 mL*2) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 10-5 (0.28 g, 0.66 mmol, 45.8%yield) as a yellow solid. LC-MS (ESI+) : m/z 295.3 [M+H] +.
Step 6. 2-chloro-6-methyldispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -7 (6H) -one
To a solution of 2-chlorodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -7 (6H) -one (0.28 g, 0.95 mmol) in DMF (8 mL) was added NaH (75.70 mg, 1.89 mmol, 60%purity) at 0 ℃ in portions. After that, the mixture was stirred at 0 ℃ for 0.5 hr. Then iodomethane (162.00 mg, 1.14 mmol) was added dropwise at 0 ℃ within 5 mins. After addition, the mixture was stirred at 20 ℃for 0.5 hr. The reaction mixture was quenched by ice-water (20 mL) at 0 ℃ and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 10-6 (0.24 g, 0.63 mmol, 66.2%yield) as a white solid. LC-MS (ESI+) : m/z 309.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.42 (d, J = 8.0 Hz, 1H) , 7.66 (d, J = 8.0 Hz, 1H) , 3.98 (d, J = 2.0 Hz, 4H) , 2.98 (s,
3H) , 2.31 (td, J = 12.0, 4.0 Hz, 2H) , 2.05 (td, J = 12.0, 4.0 Hz, 2H) , 1.88 (d, J = 12.0, 2H) , 1.40 (d, J =12.0, 2H) .
Step 7. 2-chloro-6-methyl-6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” -[1, 3] dioxolane] (int 10)
To a solution of 2-chloro-6-methyldispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” -[1, 3] dioxolan] -7 (6H) -one (0.24 g, 0.76 mmol) in THF (3 mL) was added borane (7.6 mL, 7.64 mmol, 1 M in THF) dropwise at 25 ℃. After addition, the resulting mixture was stirred at 80 ℃ for 48 hrs under N2 atmosphere. Then the reaction was cooled down to room temperature and borane (7.6 mL, 7.64 mmol, 1 M in THF) was added dropwise. The mixture was continuing stirred at 80 ℃ for 8 hrs under N2 atmosphere. After cooling to room temperature, the reaction was quenched by MeOH at 0 ℃ and stirred at 25 ℃ for 30 mins, then the mixture was poured into H2O (20 mL) and extracted with EtOAc (15 mL*3) . The combined organic layers were washed with brine (30 mL*2) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 10 (41.0 mg, 0.09 mmol, 11.6%yield) as a yellow solid. LC-MS (ESI+) : m/z 295.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.95 (d, J = 8.0 Hz, 1H) , 7.31 (d, J = 8.0 Hz, 1H) , 3.91 (t, J = 4.0, Hz, 4H) , 3.87 (s, 2H) , 2.36 (s, 3H) , 1.98 -1.91 (m, 2H) , 1.85 -1.74 (m, 4H) , 1.56 -1.49 (m, 2H) .
Preparation of Intermediate 11
Step 1. 6'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2'-chloro-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2'-chloro-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (8.67 g, 38.59 mmol) in MeOH (173 mL) were added 2- ( (tert-butyldimethylsilyl) oxy) acetaldehyde (20.20 g, 115.75 mmol) and acetic acid (4.42 mL, 77.17 mmol) , followed by sodium cyanoboranuide (7.30 g, 115.75 mmol) in portions. The resulting mixture was stirred at 50 ℃ under for 4 hrs. After cooling to room temperature, the reaction was concentrated to move off most of the solvent and was poured into 300 mL of water and adjusted pH to ~9 with Na2CO3 powder, then extracted with DCM (100 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 100%) in petroleum ether to afford int 11-1 (21.00 g, 38.381 mmol, 99.5%) as a light-yellow oil. LC-MS (ESI+) : m/z 383.4 [M+H] +.
Step 2. 2- (2'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -6' (7'H) -yl) ethan-1-ol
To a solution of 6'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2'-chloro-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (20.5 g, 53.53 mmol) in THF (205 mL) was added TBAF (107.05 mL, 107.05 mmol, 1 M in THF) . The reaction mixture was stirred at 20 ℃ for 2 hrs. After that, the reaction mixture was concentrated to move off most of the solvent and poured into 200 mL of
water, then extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, . which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 11-2 (8.10 g, 30.15 mmol, 56.3%yield) as a white solid. LC-MS (ESI+) : m/z 269.3 [M+H] +.
Step 3. 2- (2'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -6' (7'H) -yl) ethyl methanesulfonate (int 11)
To a solution of 2- (2'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -6' (7'H) -yl) ethan-1-ol (0.50 g, 1.86 mmol) in DCM (10 mL) were added TEA (0.77 mL, 5.58 mmol) and MsCl (0.26 g, 2.23 mmol) at 0 ℃. After addition, the reaction mixture was stirred at 20 ℃ for 1 hr. After completion, the reaction mixture was poured into water (30 mL) and extracted with DCM (30 mL*3) . The combined organic layers were washed with water (30 mL) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to afford int 11 (0.67 g, crude) as a yellow oil, which was used in next step as a crude product without purification. LC-MS (ESI+) : m/z 347.2 [M+H] +.
Preparation of Example 1
Step 1. tert-butyl 3- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) pyrrolidine-1-carboxylate
To a solution of tert-butyl 3-oxopyrrolidine-1-carboxylate (65 mg, 0.35 mmol) and 6'-chloro-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] (86 mg, 0.38 mmol) in MeOH (5 mL) was added borane-2-picoline complex (74 mg, 0.71 mmol) at 0 ℃. After addition, the reaction mixture
was stirred at 25 ℃ for 12 hrs. The resulting solution was poured to water (20 mL) and extracted with EtOAc (20 mL*3) , the combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 3%) in dichloromethane to afford 1-1 (75 mg, 54%yield) . LC-MS (ESI+) : m/z 394.3 (M+H) +.
Step 2. 1- (3- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) -1l4-pyrrolidin-1-yl) -2, 2, 2-trifluoroethan-1-one
To a solution of tert-butyl 3- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) pyrrolidine-1-carboxylate (75 mg, 0.19 mmol) in DCM (3 mL) was added TFA (1 mL) at 25 ℃. After addition, the reaction mixture was stirred at 25 ℃ for 2 hrs. The resulting solution was concentrated under reduced pressure to afford the crude title compound 1-2 (50 mg, 100%yield) , which was used directly to the next step without further purification. LC-MS (ESI+) : m/z 294.2 (M+H) +.
Step 3. 6'-chloro-1'- (1-methylpyrrolidin-3-yl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine]
To a solution of 1- (3- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) -1l4-pyrrolidin-1-yl) -2, 2, 2-trifluoroethan-1-one (40 mg, 0.13 mmol) in MeOH (5 mL) were added paraformaldehyde (61 mg, 0.68 mmol) and AcOH (two drops) at 25 ℃. After addition, the reaction mixture was stirred at 25 ℃ for 1 hr. Then, NaBH3CN (43 mg, 0.68 mmol) was added and stirred at 25 ℃ for 12 hrs. The resulting mixture was poured water (20 mL) and extracted with EtOAc (20 mL*3) , the combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford the 1-3 (30 mg, 71%yield) . LC-MS (ESI+) : m/z 308.3 (M+H) +.
Step 4. 5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -8- ( (1'- (1-methylpyrrolidin-3-yl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one
A mixture of 6'-chloro-1'- (1-methylpyrrolidin-3-yl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] (25 mg, 0.08 mmol) , Pd2 (dba) 3 (15 mg, 0.02mmol) , Xantphos (14 mg, 0.03 mmol) , Cs2CO3 (53 mg, 0.16 mmol) and 8-amino-5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one (38 mg, 0.09 mmol) in dioxane (1.5 mL) was degassed and purged with N2 for 3 mins. The mixture was stirred at 130 ℃ for 3 hrs under N2. After cooling to room temperature, the resulting mixture was poured into H2O (20 mL) and then extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (DCM/MeOH=15: 1, v/v) to afford the 1-4 (36 mg, 64%yield) . LC-MS (ESI+) : m/z 696.3 (M+H) +.
Step 5. 5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -8- ( (1'- (1-methylpyrrolidin-3-yl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) isoquinolin-1 (2H) -one
To a solution of 5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -8- ( (1'- (1-methylpyrrolidin-3-yl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one (36 mg, 0.05 mmol) in DCM (2 mL) was added TFA (1 mL) at 25 ℃. Then the reaction mixture was stirred at 25 ℃ for 1 hr. The solvent was removed under vacuum to give a residue, to which was added a solution of NH3 in MeOH (5 mL) . The resulting mixture was stirred at 25 ℃ for an hour. The solvent was removed under vacuum to give a residue, which was purified by prep-HPLC (column: YMC, C18 (250*20 mm, 5 μm) ; mobile phase: [water (0.1%NH3. H2O) -ACN] ; B%: 35%-60%ACN, retention time: 23min) to afford the compound 1 (20 mg, 69%yield) . LC-MS (ESI+) : m/z 566.4 (M+H) +. 1H NMR (400 MHz, CD3OD) δ 12.55 (s, 1H) , 11.51 (s, 1H) , 8.68 (d, J = 12 Hz, 1H) , 7.93-7, 89 (m, 1H) , 7.65-7.61 (m, 2H) , 7.55-7.52 (m, 1H) , 7.30 (d, J = 8 Hz, 1H) , 7.12-7.10 (m, 1H) , 6.94-6.89 (m, 1H) , 6.10 (d, J = 8 Hz, 1H) , 5.84 (d, J = 8 Hz, 1H) , 4.73-4.71 (m, 1H) , 3.83-3.80 (m, 2H) , 3.55-3.49 (m, 4H) , 2.69-2.57 (m, 3H) , 2.39-2.37 (m, 1H) , 2.26 (s, 3H) , 2.12-2.09 (m, 1H) , 2.03-1.99 (m, 1H) , 1.91-1.75 (m, 2H) , 1.56-1.53 (m, 2H) .
Preparation of Example 2
Step 1. 2- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) -N, N-dimethylethan-1-amine
To a solution of 6'-chloro-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] (100 mg, 0.45 mmol) in THF (4 mL) was added NaH (99.7 mg, 2.49 mmol, 60%) at 0 ℃ under N2. The resulting mixture was stirred at 30 ℃ for 0.5 hr. Then, 2-bromo-N, N-dimethylethan-1-amine hydrobromide (251.7 mg, 1.34 mmol) was added in portions at 0 ℃, and resulting mixture was stirred at 30 ℃ for 0.5 hr. The reaction was quenched by 5 mL of water and extracted with EtOAc (10 mL*2) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (Ethyl acetate) to afford 2-1 (90 mg, 0.30 mmol, 68.4%yield) . LCMS: (ESI+) : m/z 296.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ7.30 (d, J = 8.0 Hz, 1H) , 6.44 (d, J = 8.0 Hz, 1H) , 3.79-3.84 (m, 2H) , 3.56 (s, 2H) , 3.44-3.51 (m, 2H) , 3.40 (t, J = 8.0 Hz, 2H) , 2.45 (t, J = 8.0 Hz, 2H) , 2.19 (s, 6H) , 1.76-1.83 (m, 2H) , 1.50-154 (m, 2H) .
Step 2. 8- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one
To a solution of 8-amino-5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one (90 mg, 0.21 mmol) and 2- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) -N, N-dimethylethan-1-amine (62.71 mg, 0.21 mmol) in dioxane (3 mL) were added Pd2 (dba) 3 (38.82 mg, 0.04 mmol) , Xantphos (36.80 mg, 0.06 mmol) and Cs2CO3 (138.14 mg, 0.42 mmol) at 25 ℃. After addition, the reaction was stirred at 130 ℃under N2 for 3 hrs. After cooling to room temperature, the reaction was poured into 5 mL of water and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by pre-TLC (DCM/MeOH = 20: 1, v/v) to afford 2-2 (50 mg, 0.07 mmol, 34.5%yield) . LC-MS (ESI+) : m/z 684.4 (M+H) +.
Step 3. 8- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) isoquinolin-1 (2H) -one
To a solution of 8- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one (50 mg, 0.07 mmol) in DCM (5 mL) was added TFA (5 mL, 65.30 mmol) dropwise at 30 ℃ and the mixture was stirred at 30 ℃ for 1 hr. The reaction mixture was diluted with 10 mL DCM and adjusted pH to 7~8 with saturated NaHCO3 solution and then the organic layer was washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated to give a residue. To the residue was added 10 mL NH3 in MeOH (7 M) and stirred at 25 ℃ for 0.5 hr. Then the resulting mixture was concentrated to give a residue, which was purified by pre-TLC (DCM/MeOH=10: 1, v/v ) to give a crude, which was further purified by pre-HPLC (column: YMC, C18 (250*20mm, 5μm) ; mobile phase: [water (0.1%NH4HCO3) -ACN] ; B%: 2ACN%-60ACN%, retention time: 26.5min) to afford compound 2 (15 mg, 0.03 mmol, 37.1%yield) . LC-MS (ESI+) : m/z 554.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 12.58 (s, 1H) , 11.53 (brs, 1H) , 8.79 (d, J = 8.0 Hz, 1H) , 7.90 (dd, J =8.0, 4.0 Hz, 1H) , 7.65 (s, 1H) , 7.56-7.52 (m, 2H) , 7.29 (d, J = 8.0 Hz, 1H) , 7.13-7.10 (m, 1H) , 6.92 (td, J = 8.0, 4.0 Hz, 1H) , 6.07 (d, J = 8.0 Hz, 1H) , 5.84 (d, J = 8.0 Hz, 1H) , 3.87-3.78 (m, 2H) , 3.53-3.45 (m, 6H) , 2.55-2.52 (m, 2H) , 2.22 (s, 6H) , 1.86-1.75 (m, 2H) , 1.53 (d, J = 12.0 Hz, 2H) .
Preparation of Example 3
Step 1. 2- (6'-chloro-4, 5-dihydro-2H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) -N, N-dimethylethan-1-amine
To a solution of 6'-chloro-1', 2', 4, 5-tetrahydro-2H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridine] (76.0 mg,0.36 mmol) in THF (4 mL) was added NaH (80.8 mg, 2.02 mmol, 60%yield) at 0 ℃ in portions. The suspension was stirred at 25 ℃ for 0.5 hr and then cooled down to 0 ℃. 2-bromo-N, N-dimethylethan-1-amine hydrobromide (252.3 mg, 1.08 mmol) was added in portions and the mixture was stirred at 25 ℃under N2 for 0.5 hr. The resulting solution was poured into 20 mL of water and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by pre-TLC (DCM/EtOAc = 20: 1, v/v ) to afford 3-1 (45.0 mg, 0.16 mmol, 44.6%yield) . LCMS: (ESI+) : m/z 282.3 (M+H) +.
Step 2. 8- ( (1'- (2- (dimethylamino) ethyl) -1', 2', 4, 5-tetrahydro-2H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one
To a solution of 2- (6'-chloro-4, 5-dihydro-2H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) -N, N-dimethylethan-1-amine (40.0 mg, 0.14 mmol) and 8-amino-5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one (72.3 mg, 0.17 mmol) in dioxane (1mL) were added Pd2 (dba) 3 (26 mg, 0.03 mmol) , Xantphos (24.6 mg, 0.04 mmol) and Cs2CO3 (92.5 mg, 0.28 mmol) at 25 ℃. After addition, the resulting mixture was purged with N2 for 5 mins and stirred at 130 ℃under N2 for 4 hrs. The reaction mixture was poured into 5 mL of water and extracted with DCM (5 mL*4) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by pre-TLC (DCM/MeOH = 15: 1, v/v ) to afford 3-2 (40 mg, 0.06 mmol, 42.1%yield) . LC-MS (ESI+) : m/z 670.3 (M+H) +.
Step 3. 8- ( (1'- (2- (dimethylamino) ethyl) -1', 2', 4, 5-tetrahydro-2H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) isoquinolin-1 (2H) -one
To a solution of 8- ( (1'- (2- (dimethylamino) ethyl) -1', 2', 4, 5-tetrahydro-2H-spiro [furan-3, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (2-
(trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one (40 mg, 0.06 mmol) in DCM (2 mL) was added TFA (2 mL, 26.12 mmol) dropwise at 25 ℃. After addition, the mixture was stirred at 25 ℃ for 1 hr. The resulting reaction mixture was diluted with DCM (10 mL) and adjusted pH to ~7-8 with saturated NaHCO3 solution. Then the organic layer was washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was dissolved in NH3 in MeOH (5 mL, 7 M) and stirred at 25 ℃ for 0.5 hr. After completion, the mixture was concentrated to give a residue, which was purified by pre-TLC (DCM/MeOH = 20: 1, v/v ) to give a residue, which was further triturated with DMF (1.5 mL) at 25 ℃ for 10 mins, filtered and the filter cake was dried in vacuum to afford compound 3 (5 mg, 0.01mmol, 15.4%yield) . LC-MS (ESI+) : m/z 540.4 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 12.62 (s, 1H) , 11.51 (brs, 1H) , 8.79 (d, J = 8.0 Hz, 1H) , 7.93-7.86 (m, 1H) , 7.65 (s, 1H) , 7.60-7.49 (m, 2H) , 7.28 (d, J = 8.0 Hz, 1H) , 7.16-7.07 (m, 1H) , 6.91 (td, J = 8.0, 4.0 Hz, 1H) , 6.10 (d, J = 8.0 Hz, 1H) , 5.84 (d, J = 8.0 Hz, 1H) , 4.01-3.92 (m, 1H) , 3.87 (q, J = 8.0 Hz, 1H) , 3.71 (d, J = 8.0 Hz, 1H) , 3.59 (d, J = 8.0 Hz, 1H) , 3.57-3.52 (m, 1H) , 3.51-3.40 (m, 3H) , 2.56-2.51 (m, 2H) , 2.22 (s, 6H) , 2.17-2.10 (m, 1H) , 2.08-1.99 (m, 1H) .
Preparation of Example 4
Step 1. 5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -8- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -2- ( (2- (trimethylsilyl) ethoxy) methyl) isoquinolin-1 (2H) -one
To a solution of 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] (50 mg, 0.21 mmol) and 8-amino-2- (5, 5-dimethyl-2-oxa-5-silahex-1-yl) -5- (7-fluoroimidazo [3, 2-a] pyridin-3-yl) -1, 2-dihydroisoquinolin-1-one (111 mg, 0.21 mmol) in 1, 4-dioxane (2 mL) were added Cs2CO3 (137 mg, 0.42 mmol) , Xantphos (36 mg, 0.06 mmol) and Pd2 (dba) 3 (38 mg, 0.04 mmol) at 30 ℃. The resulting mixture was purged with N2 for 3 times and stirred at 130 ℃ under N2 for 3 hrs. After cooling to room temperature, the reaction was filtered and the cake was washed with DCM (10 mL) . The filtrate was concentrated under reduced pressure to give a residue which was purified by prep-TLC (SiO2, DCM/MeOH=20: 1, v/v) to afford 4-1 (120 mg, 0.15 mmol, 54%yield) . LCMS: (ESI+) : m/z 627.2 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 12.75 (s, 1H) , 8.84 (d, J = 8.0 Hz, 1H) ,
8.08 (d, J = 8.0 Hz, 1H) , 7.99-7.91 (m, 1H) , 7.72 (d, J = 8.0 Hz, 1H) , 7.68 (s, 1H) , 7.56 (dd, J = 12.0, 4.0 Hz, 1H) , 7.46 (d, J = 8.0 Hz, 1H) , 6.97-6.88 (m, 1H) , 6.86 (d, J = 8.0 Hz, 1H) , 6.02 (d, J = 8.0 Hz, 1H) , 5.38 (s, 2H) , 3.95-3.76 (m, 6H) , 3.66-3.60 (m, 2H) , 2.42 (s, 3H) , 2.00-1.92 (m, 2H) , 1.53-1.42 (m, 2H) , 0.95-0.82 (m, 2H) , 0.00 (s, 9H) .
Step 2. 5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -8- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoquinolin-1 (2H) -one
To a solution of 2- (5, 5-dimethyl-2-oxa-5-silahex-1-yl) -5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -8- [ (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] -2'-yl) amino] -1, 2-dihydroisoquinolin-1-one (120 mg, 0.19 mmol) in DCM (6 mL) was added TFA (2 mL) at 25 ℃. After addition, the mixture was stirred at 25 ℃ for 0.5 hr. The resulting mixture was concentrated under reduced pressure to remove solvent and diluted with DCM (10 mL) , and then adjusted pH~7-8 with saturated NaHCO3. The organic layer was washed with brine (6 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM/MeOH=20: 1, v/v) and further purified by prep-HPLC (column: YMC, C18 (250*20mm, 5μm) ; mobile phase: [water (0.1%HCOOH) -ACN] ; B%: 2ACN%-15ACN%, retention time: 17.5min, 30min) to afford compound 4 (41 mg, 0.083 mmol, 43.1%yield) . LC-MS (ESI+) : m/z 497.1 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 12.90 (s, 1H) , 11.62 (brs, 1H) , 8.78 (d, J = 8.0 Hz, 1H) , 8.21 (s, 1H, HCOOH) , 8.08 (d, J = 12.0 Hz, 1H) , 7.94 (dd, J = 8.0, 4.0 Hz, 1H) , 7.74-7.61 (m, 2H) , 7.55 (dd, J = 12.0, 4.0 Hz, 1H) , 7.16 (d, J = 8.0 Hz, 1H) , 6.93 (td, J = 8.0, 4.0 Hz, 1H) , 6.83 (d, J = 12.0 Hz, 1H) , 5.92 (d, J = 8.0 Hz, 1H) , 3.96-3.81 (m, 6H) , 2.43 (s, 3H) , 2.05-1.90 (m 2H) , 1.49 (d, J = 12.0 Hz, 2H) .
Preparation of Compound 5
Step 1. 6'-chloro-1'- (2- (dimethylamino) ethyl) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one
To a solution of 6'-chloro-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] -2'-one (88 mg, 0.37 mmol) in THF (1 mL) was added NaH (101 mg, 2.51 mmol, 60%purity) in portions at
0 ℃. After addition, the mixture was stirred at 30 ℃ under N2 for 0.5 hr. The mixture was cooled down to 0 ℃ and then 2-bromo-N, N-dimethylethan-1-amine hydrobromide (293 mg, 1.26 mmol) was added in portions at 0 ℃. The resulting mixture was stirred at 30 ℃ under N2 for 1 hr. Then the reaction mixture was poured into 10 mL of water and extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 33%) in petroleum ether to afford 5-1 (70 mg, 0.23 mmol, 53.9%yield) . LC-MS (ESI+) : m/z 310.1 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 8.03 (d, J = 8.0 Hz, 1H) , 7.12 (d, J = 8.0 Hz, 1H) , 4.39-4.03 (m, 2H) , 3.88-3.66 (m, 4H) , 2.54-2.51 (m, 2H) , 2.15 (s, 6H) , 1.82-1.68 (m, 4H) .
Step 2. tert-butyl 7- ( (1'- (2- (dimethylamino) ethyl) -2'-oxo-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
To a solution of 6'-chloro-1'- (2- (dimethylamino) ethyl) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one (40 mg, 0.13 mmol) and 2-methylpropan-2-yl-7-amino-4- (7-fluoroimidazo [3, 2-a] pyridin-3-yl) -1-oxo-2, 3-dihydro-1H-isoindole-2-carboxylate (54 mg, 0.14 mmol) in dioxane (0.50 mL) were added Cs2CO3 (84 mg, 0.26 mmol) and Xantphos (18 mg, 0.02 mmol) . After addition, the mixture was purged with N2 for 5 mins and stirred at 130 ℃ under N2 for 3 hrs. The reaction mixture was concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 15: 1, v/v ) to give 5-2 (40 mg, 0.06 mmol, 47.2%yield) . LC-MS (ESI+) : m/z 656.4 (M+H) +.
Step 3. 1'- (2- (dimethylamino) ethyl) -6'- ( (7- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -3-oxoisoindolin-4-yl) amino) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -2' (1'H) -one
To a solution of tert-butyl 7- ( (1'- (2- (dimethylamino) ethyl) -2'-oxo-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (40 mg, 0.06 mmol) in DCM (2.10 mL) was added TFA (0.70 mL) . After addition, the mixture was stirred at 25 ℃ for 0.5 hr. The reaction was concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM/MeOH = 10: 1, v/v ) to afford compound 5 (3.3 mg, 0.01 mmol, 9.7%yield) . LC-MS (ESI+) : m/z 556.4 (M+H) +. 1H NMR (400 MHz, CDCl3) δ 10.00 (s, 1H) , 8.80 (d, J = 8.0 Hz, 1H) , 8.10-8.02 (m, 1H) , 7.67–7.55 (m, 3H) , 7.32 (dd, J = 8.0, 4.0 Hz, 1H) , 6.74 (td, J = 8.0, 4.0 Hz, 1H) , 6.56 (d, J = 8.0 Hz, 1H) , 6.18 (s, 1H) , 4.36 (s, 2H) , 4.26-4.16 (m, 2H) , 4.06-3.99 (m, 2H) , 3.95-3.85 (m, 2H) , 2.79 (s, 2H) , 2.40 (s, 6H) , 2.02-1.93 (m, 2H) , 1.80-1.74 (m, 2H) .
Preparation of Example 6
Step 1. N- (3- (5-amino-6-cyanopyridin-2-yl) cyclohex-3-en-1-yl) benzamide
To a solution of 3-amino-6-chloropyridine-2-carbonitrile (250 mg, 1.63 mmol) and N- [3- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) cyclohex-3-enyl] benzamide (932.0 mg, 2.85 mmol) in 1, 4-dioxane (5 mL) and H2O (0.5 mL) were added Pd (dppf) Cl2. CH2Cl2 (66.5 mg, 0.08 mmol) and Cs2CO3 (1590.8 mg, 4.88 mmol) . After addition, the resulting mixture was purged with N2 for 3 mins and stirred at 130 ℃ under N2 for 3 hrs. The reaction solution was poured into H2O (5 mL) , extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by flash silica gel chromatography12 g Silica Flash Column, Eluent of 0-60%Ethyl acetate/Petroleum ether gradient @25 mL/min) to afford 6-1 (280 mg, 0.88 mmol, 54.0%yield) . LCMS: (ESI+) : m/z 319.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 8.40 (d, J = 8.0 Hz, 1H) , 7.93-7.86 (m, 2H) , 7.66 (d, J =12.0 Hz, 1H) , 7.57-7.51 (m, 1H) , 7.51-7.43 (m, 2H) , 7.21 (d, J = 8.0 Hz, 1H) , 6.46 (brs, 1H) , 6.28 (s, 2H) , 4.21-3.97 (m, 1H) , 2.86 (dd, J =16.0, 4.0 Hz, 1H) , 2.43-2.27 (m, 3H) , 1.98-1.87 (m, 1H) , 1.67-1.52 (m, 1H) .
Step 2. N- (3- (6-cyano-5- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) pyridin-2-yl) cyclohexan-1-yl) benzamide
To a solution of 2- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) -N, N-dimethylethan-1-amine (40 mg, 0.14 mmol) and N- (3- (5-amino-6-cyanopyridin-2-yl) cyclohex-3-en-1-yl) benzamide (43.1 mg, 0.134 mmol) in dioxane (1.2 mL) were added Cs2CO3 (88.1 mg, 0.27 mmol) , Xantphos (1.8 mg, 0.003 mmol) and Pd2 (dba) 3 (1.9 mg, 0.002 mmol) . After addition, the resulting mixture was purged with N2 for 3 mins and stirred at 130 ℃ for 3 hrs under N2. After cooling to room temperature, the reaction was poured into H2O (5 mL) and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (DCM/MeOH = 20: 1, v/v ) to afford 6-2 (50 mg, 0.087 mmol, 64.0%yield) . LC-MS (ESI+) : m/z 578.4 (M+H) +.
Step 3. 6- (5-benzamidocyclohex-1-en-1-yl) -3- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) picolinamide
To a solution of N- (3- (6-cyano-5- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) pyridin-2-yl) cyclohexan-1-yl) benzamide (45 mg, 0.078 mmol) in DMSO (1 mL) were added K2CO3 (32.3 mg, 0.23 mmol) and H2O2 (0.09 mL, 0.78 mmol) . After addition, the mixture was stirred at 20 ℃ for 0.5 hr. The resulting solution was poured into H2O (5 mL) and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (DCM/MeOH = 20: 1, v/v ) to give a crude. The crude was further purified by pre-HPLC ( [water (0.1%NH4HCO3) -ACN] ; B%: 45ACN%-60ACN, retention time: 20.3min) to afford compound 6 (23.5 mg, 0.04 mmol, 50.6%yield) . LC-MS (ESI+) : m/z 596.4 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 11.39 (s, 1H) , 9.08 (d, J = 12.0 Hz, 1H) , 8.37 (d, J = 8.0 Hz, 1H) , 8.26-8.18 (m, 1H) , 7.96-7.87 (m, 2H) , 7.86-7.76 (m, 1H) , 7.65 (d, J = 8.0 Hz, 1H) , 7.58-7.52 (m, 1H) , 7.51-7.45 (m, 2H) , 7.26 (d, J = 8.0 Hz, 1H) , 6.71 (brs, 1H) , 5.97 (d, J = 8.0 Hz, 1H) , 4.27-4.08 (m, 1H) , 3.90-3.76 (m, 2H) , 3.56-3.44 (m, 6H) , 3.00 (dd, J = 16.0, 8.0 Hz, 1H) , 2.67-2.56 (m, 2H) , 2.49-2.44 (m, 1H) , 2.39 (brs, 2H) , 2.31 (s, 6H) , 2.01-1.91 (m, 1H) , 1.80 (td, J = 12.0, 4.0 Hz, 2H) , 1.71-1.59 (m, 1H) , 1.52 (d, J = 12.0 Hz, 2H) .
Preparation of Example 7
Step 1. N- (3- (6-cyano-5- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) pyridin-2-yl) cyclohexan-1-yl) benzamide
To a solution of 6'-chloro-1'- [2- (dimethylamino) ethyl] -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] (40 mg, 0.14 mmol) and N- [3- (3-amino-2-cyanopyridin-6-yl) cyclohex-3-enyl] benzamide (80 mg, 0.25 mmol) in 1, 4-dioxane (2 mL) were added Cs2CO3 (163.8 mg, 0.503 mmol) , Brettphos Pd G3 (1.8 mg, 0.002 mmol) at 30 ℃. After addition, the mixture was exchanged with N2 for 3 times and stirred at 130 ℃ for 2 hrs under N2. After cooling to room temperature, the reaction was poured into H2O (5 mL) and extracted with EtOAc (10 mL*3) . The combined organic layer was washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by pre-TLC (DCM/MeOH=20: 1, v/v ) to afford 7-1 (85 mg, 0.16 mmol, 65.0%yield) . LC-MS (ESI+) : m/z 521.2 (M+H) +.
Step 2. 6- (5-benzamidocyclohex-1-en-1-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of N- (3- {6-cyano-5- [ (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] -2'-yl) amino] pyridin-2-yl} cyclohex-3-enyl) benzamide (80 mg, 0.15 mmol) in DMSO (1.6 mL) was added K2CO3 (64 mg, 0.46 mmol) , followed by H2O2 (0.17 mL, 1.54 mmol) at 20 ℃. After addition, the mixture was stirred at 20 ℃ for 0.5 hr. The resulting mixture was poured into H2O (5 mL) , and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by pre-TLC (DCM/MeOH=20: 1, v/v ) and then further purified by pre-HPLC ( [water (0.1%NH4HCO3) -ACN] ; B%: 35ACN%-65ACN%, retention time: 23.5min) to afford compound 7 (19.9 mg, 0.037 mmol, 23.8%yield) . LC-MS (ESI+) : m/z 539.6 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 11.69 (s, 1H) , 9.06 (d, J =8.0 Hz, 1H) , 8.37 (d, J = 8.0 Hz, 1H) , 8.24 (d, J = 4.0 Hz, 1H) , 8.01 (d, J = 8.0 Hz, 1H) , 7.93-7.84 (m, 3H) , 7.74 (d, J = 8.0 Hz, 1H) , 7.56-7.42 (m, 3H) , 6.76-6.67 (m, 2H) , 4.17-4.15 (m, 1H) , 3.88 (s, 3H) , 3.86-3.73 (m, 4H) , 3.08-2.92 (m, 1H) , 2.44-2.35 (m, 5H) , 2.07-1.83 (m, 3H) , 1.71-1.58 (m, 1H) , 1.54-1.37 (m, 2H) .
Preparation of Example 8
Step 1. 4-bromo-7-nitroisoindolin-1-one
To a solution of 4-bromoisoindolin-1-one (10.0 g, 47.39 mmol) in H2SO4 (50 mL) at 0 ℃under N2 atmosphere was added a solution of concentrated nitric acid (3.75 mL, 52.13 mmol, 14.0 mol/L) in H2SO4 dropwise slowly. After addition, the reaction was stirred at 0 ℃ for 6 hrs. The reaction mixture was poured into ice water, and the precipitated solid was filtered. The filter cake was dried in vacuum to afford 4-bromo-7-nitroisoindolin-1-one (11.0 g, 91%yield) . LC-MS (ESI+) : m/z 256.9 (M+H) +.
Step 2. tert-butyl 4-bromo-7-nitro-1-oxoisoindoline-2-carboxylate
To a solution of 4-bromo-7-nitroisoindolin-1-one (11.0 g, 42.97 mmol) and DMAP (524 mg, 4.30 mmol) in dioxane (100 mL) were added TEA (13.15 g, 128.91 mmol) , and Boc2O (18.73 g, 85.94 mmol) . After addition, the reaction was stirred at 25 ℃ for 6 hrs. The reaction mixture was poured into H2O (200 mL) and then extracted with EtOAc (100 mL*3) . The combined organic layer were washed with brine (100 mL*3) , dried over Na2SO4, filtered, and concentrated to give crude product, which was purified by column chromatography on silica gel eluting with ethyl acetate in petroleum ether (from 0%to 20%) to afford 8-2 (12.0 g, 78%yield) . LC-MS (ESI+) : m/z 356.9 (M+H-100) +.
Step 3. tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7-nitro-1-oxoisoindoline-2-carboxylate
To a solution of tert-butyl 4-bromo-7-nitro-1-oxoisoindoline-2-carboxylate (12.0 g, 33.71 mmol) and 7-fluoroimidazo [1, 2-a] pyridine (6.88 g, 50.56 mmol) in dioxane (120 mL) were added KOAc (9.91 g, 101.13 mmol) , and Pd (OAc) 2 (755.0 mg, 3.37 mmol) , and the reaction was stirred at 110 ℃ for 16 hrs. The reaction mixture was poured into H2O (300 mL) and then extracted with EtOAc (200 mL*3) . The combined organic layer was washed with brine (200 mL*3) , dried over Na2SO4, filtered, and concentrated to give crude product, which was purified by column chromatography on silica gel eluting with ethyl acetate in petroleum ether (from 0%to 33%) to afford the 8-3 (5.0 g, 36%yield) . LC-MS (ESI+) : m/z 413.2 (M+H) +.
Step 4. tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7-nitro-1-oxoisoindoline-2-carboxylate (5.0 g, 12.14 mmol) in EtOH/H2O=5: 1 (50 mL: 10 mL) were added Fe (5.44 g, 97.12 mmol) and NH4Cl (5.15 g, 97.12 mmol) , the reaction was heated and stirred at 75 ℃ for 3 hrs. The reaction was filtered through a Celite pad, and the filtrate was concentrated in vacuum, then water (50 mL) was added and extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine, dried over anhydrous sodium sulfate, and concentrated to give crude product, which was purified by column chromatography on silica gel eluting with methanol in dichloromethane (from 0%to 3%) to afford 8-4 (3.50 g, 75%yield) . LC-MS (ESI+) : m/z 383.1 (M+H) +.
Step 5. tert-butyl 7- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
To a solution of 2-methylpropan-2-yl 7-amino-4- (7-fluoroimidazo [3, 2-a] pyridin-3-yl) -1-oxo-2, 3-dihydro-1H-isoindole-2-carboxylate (40 mg, 0.11 mmol) and 2- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) -N, N-dimethylethan-1-amine (30.9 mg, 0.11 mmol) in 1, 4-dioxane (0.5 mL) were added Brettphos Pd G3 (1.1 mg, 0.001 mmol) and Cs2CO3 (68.2 mg, 0.21 mmol) at 30 ℃. After addition, the reaction mixture was purged with N2 for 3 mins and stirred at 130 ℃ under N2 for 3 hrs. After cooling to room temperature, the reaction mixture was poured into 10 mL of water and extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 9%) in dichloromethane to afford 8-5 (42 mg, 62.6%yield) . LC-MS (ESI+) : m/z 642.4 (M+H) +.
Step 6. 7- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) isoindolin-1-one
To a solution of tert-butyl 7- ( (1'- (2- (dimethylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (41 mg, 0.06 mmol) in DCM (0.6 mL) was added TFA (2.4 mL) 20 ℃. The reaction mixture was stirred at 20 ℃ for 1 hr. The resulting mixture was poured into 10 mL of water and adjusted pH to7-8 with NaHCO3, then extracted with EtOAc (5 mL*3) . The combined organic layers were dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by pre-TLC (DCM/MeOH = 10:1, v/v ) to afford compound 8 (6.7 mg, 17%yield) . LC-MS (ESI+) : m/z 542.2 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 9.86 (s, 1H) , 8.77 (s, 1H) , 8.64 (d, J = 8.0 Hz, 1H) , 8.42-8.34 (m, 1H) , 7.79 (s, 1H) , 7.61 (d, J = 8.0 Hz, 1H) , 7.51 (dd, J = 12.0, 4.0 Hz, 1H) , 7.26 (d, J = 8.0 Hz, 1H) , 6.99-6.95 (m, 1H) , 6.02 (d, J = 8.0 Hz, 1H) , 4.35 (s, 2H) , 3.86-3.77 (m, 2H) , 3.57-3.44 (m, 6H) , 2.55-2.51 (m, 2H) , 2.22 (s, 6H) , 1.85-1.73 (m, 2H) , 1.57-1.48 (m, 2H) .
Preparation of Example 9
Step 1. tert-butyl (2- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) ethyl) (methyl) carbamate
To a solution of 6'-chloro-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] (50 mg, 0.22 mmol) and 2-methylpropan-2-yl [ (formylmethyl) (methyl) amino] methanoate (77 mg, 0.45 mmol) in MeOH (0.8 mL) was added AcOH (0.04 mL, 0.67 mmol) , followed by sodium cyanoborohydride (42 mg, 0.67 mmol) at 20 ℃. After addition, the mixture was stirred at 20 ℃ for 6 hrs. The resulting mixture was poured into 1 mL of saturated sodium bicarbonate and extracted with EtOAc (1 mL*3) , the combined organic layers were washed by brine (2 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (SiO2, PE/EA = 3: 1, v/v ) to afford 9-1 (70 mg, 0.17 mmol, 78.3%yield) . LCMS: (ESI+) : m/z 382.3 (M+H) +.
Step 2. tert-butyl 7- ( (1'- (2- ( (tert-butoxycarbonyl) (methyl) amino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
To a solution of 2-methylpropan-2-yl { [2- (6'-chloro-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] -1'-yl) ethyl] (methyl) amino} methanoate (85 mg, 0.22 mmol) in dioxane (1 mL) were added Brettphos Pd G3 (2 mg, 0.003 mmol) , Cs2CO3 (145 mg, 0.45 mmol) and 2-methylpropan-2-yl-7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxo-2, 3-dihydro-1H-isoindole-2-carboxylate (85 mg, 0.22 mmol) at 20 ℃, the resulting mixture was purged with N2 for 1 min, then stirred at 130 ℃ for 2 hrs. The reaction was poured into 2 mL water and extracted with EtOAc (1 mL*3) , the combined organic layers were washed with brine (2 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (SiO2, ethyl acetate) to afford 9-2 (25 mg, 0.025 mmol, 11.4%yield) . LC-MS (ESI+) : m/z 728.3 (M+H) +.
Step 3. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (1'- (2- (methylamino) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) isoindolin-1-one
To a solution of 2-methylpropan-2-yl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxo-7- { [1'- (2, 2, 5-trimethyl-4-oxo-5-aza-3-oxahept-7-yl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] -6'-yl] amino} -2, 3-dihydro-1H-isoindole-2-carboxylate (25 mg, 0.034 mmol) in DCM (3 mL) was added TFA (1 mL) at 20 ℃. The resulting mixture was stirred at 20 ℃ for 2 hrs. The reaction was poured into 5 mL saturated sodium bicarbonate and extracted with DCM (3 mL*3) . The combined organic layers were dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-HPLC ( [water (0.1%NH4HCO3) -ACN] ; B%: 20ACN%-50ACN%, retention time, 22.0min) to afford compound 9 (3.4 mg, 0.006 mmol, 18.4%yield) . LC-MS (ESI+) : m/z 528.1 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 9.86 (s, 1H) , 8.77 (s, 1H) , 8.58 (d, J = 8.0 Hz, 1H) , 8.43-8.36 (m, 1H) , 7.80 (s, 1H) , 7.65 (d, J = 8.0 Hz, 1H) , 7.52 (dd, J = 8.0, 4.0 Hz, 1H) , 7.29 (d, J = 8.0 Hz, 1H) , 7.00-6.95 (td, J = 8.0, 4.0 Hz, 1H) , 6.08 (d, J = 8.0 Hz, 1H) , 4.35 (s, 2H) , 3.88-3.76 (m, 2H) , 3.56-3.44 (m, 5H) , 2.91-2.80 (m, 2H) , 2.40 (s, 3H) , 1.86-1.73 (m, 2H) , 1.61-1.51 (m, 2H) , 0.88-0.79 (m, 2H) .
Preparation of Example 10
Step 1. 6'-chloro-1'- (2, 2-dimethoxyethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine]
To a solution of 6'-chloro-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] (200 mg, 0.89 mmol) in THF (6 mL) was added NaH (142 mg, 3.56 mmol, 60%purity) at 0 ℃. After addition, the reaction mixture was stirred at 25 ℃ for 0.5 hr. Then, 2-bromo-1, 1-dimethoxyethane (301 mg, 1.78 mmol) was added. The resulting mixture was stirred at 80 ℃ for 1.5 hrs. After cooling to room temperature, the resulting mixture was poured into 10 mL of water, extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (SiO2, PE/EA = 1: 1, v/v) to afford 10-1 (200 mg, 0.56 mmol, 62.5%) . LC-MS (ESI+) : m/z 313.1 (M+H) +.
Step 2. 2- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) acetaldehyde
To a solution of 6'-chloro-1'- (2, 2-dimethoxyethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] (400 mg, 1.28 mmol) in DCM (2 mL) was added TFA (2 mL) at 20 ℃. After addition, the mixture was stirred at 20 ℃ for 6 hrs and poured into 10 mL of water, adjusted pH to7~8 with saturated NaHCO3, then extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated to afford the 10-2 (300 mg, 0.86 mmol, 66.9%) . LC-MS (ESI+) : m/z 267.1 (M+H) +.
Step 3. (S) -6'-chloro-1'- (2- (3-fluoropyrrolidin-1-yl) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine]
To a solution of 2- (6'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -1' (2'H) -yl) acetaldehyde (100 mg, 0.38 mmol) and (3S) -3-fluorotetrahydropyrrole hydrochloride (94 mg, 0.75 mmol) in MeOH (1 mL) were added DIEA (0.12 mL, 0.75 mmol) and sodium cyanoborohydride (47 mg, 0.75 mmol) at 20 ℃. After addition, the resulting mixture was stirred at 20 ℃ for 3 hrs under N2. The reaction was poured into 5 mL of water and extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated to give a residue
which was purified by prep-TLC (SiO2, DCM/MeOH = 10: 1, v/v ) to afford 10-3 (50 mg, 0.15 mmol, 39.2%) . LC-MS (ESI+) : m/z 340.3 (M+H) +.
Step 4. tert-butyl (S) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (1'- (2- (3-fluoropyrrolidin-1-yl) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -1-oxoisoindoline-2-carboxylate
To a solution of 2-methylpropan-2-yl 7-amino-4- (7-fluoroimidazo [3, 2-a] pyridin-3-yl) -1-oxo-2, 3-dihydro-1H-isoindole-2-carboxylate (36 mg, 0.09 mmol) and 6'-chloro-1'- {2- [ (3S) -3-fluorotetrahydro-1H-pyrrol-1-yl] ethyl} -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] (32 mg, 0.094 mmol) in 1, 4-dioxane (1.5 mL) were added Cs2CO3 (61 mg, 0.19 mmol) and BrettPhos Pd G3 (2 mg, 0.002 mmol) at 30 ℃. After addition, the resulting mixture was purged with N2 for 3 times and stirred at 130 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction was filtered and the cake was washed with EtOAc (3 mL) . The organic layer was washed with H2O (5 mL) followed by brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM/MeOH=20: 1, v/v ) to afford 10-4 (16 mg, 0.02 mmol, 24%yield) . LC-MS (ESI+) : m/z 686.1 (M+H) +.
Step 5. (S) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (1'- (2- (3-fluoropyrrolidin-1-yl) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) isoindolin-1-one
To a solution of 2-methylpropan-2-yl 4- (7-fluoroimidazo [3, 2-a] pyridin-3-yl) -7- [ (1'- {2- [ (3S) -3-fluorotetrahydro-1H-pyrrol-1-yl] ethyl} -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] -6'-yl) amino] -1-oxo-2, 3-dihydro-1H-isoindole-2-carboxylate (16 mg, 0.02 mmol) in DCM (3 mL) was added TFA (1 mL) . After addition, the mixture was stirred at 20 ℃ for 0.5 hr. The resulting mixture was diluted with DCM (10 mL) and washed with saturated NaHCO3 (10 mL*3) , followed by brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM/MeOH=15: 1, v/v) to afford compound 10 (8.5 mg, 0.014 mmol, 61%yield) . LC-MS (ESI+) : m/z 586.1 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 9.89 (s, 1H) , 8.78 (s, 1H) , 8.66 (d, J = 12.0 Hz, 1H) , 8.42-8.38 (m, 1H) , 7.81 (s, 1H) , 7.63 (d, J =12.0 Hz, 1H) , 7.53 (dd, J = 8.0, 4.0 Hz, 1H) , 7.29 (d, J = 8.0 Hz, 1H) , 6.99-6.95 (m, 1H) , 6.05 (d, J = 8.0 Hz, 1H) , 5.34-5.05 (m, 1H) , 4.37 (s, 2H) , 3.91-3.76 (m, 2H) , 3.60-3.45 (m, 5H) , 3.33-3.31 (m, 1H) , 3.00-2.85 (m, 2H) , 2.83-2.63 (m, 3H) , 2.4-2.38 (m, 1H) , 2.20-2.04 (m, 1H) , 1.97-1.74 (m, 3H) , 1.54 (d, J = 16.0 Hz, 2H) .
Preparation of Example 12
Step 1. tert-butyl 2'- ( (2- (tert-butoxycarbonyl) -7- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -3-oxoisoindolin-4-yl) amino) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] -6' (7'H) -carboxylate
To a solution of tert-butyl 2'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] -6' (7'H) -carboxylate (60 mg, 0.18 mmol) and tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (84 mg, 0.22 mmol) in dioxane (1.6 mL) were added BrettPhos Pd G3 (33 mg, 0.03 mmol) and Cs2CO3 (120 mg, 0.37 mmol) at 20 ℃. After addition, the mixture was degassed and purged with N2 for 3 times, and then the mixture was stirred at 130 ℃ for 3 hrs under N2 atmosphere. After cooling to room temperature, the resulting mixture was poured into water (20 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC with (DCM/MeOH = 20: 1, v/v) to afford 12-1 (48 mg, 28.7%yield) . LC-MS (ESI+) : m/z 571.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 9.87 (s, 1H) , 8.77 (d, J = 8.0 Hz, 1H) , 8.43-8.40 (m, 1H) , 7.83 (d, J = 8.0 Hz, 2H) , 7.66 (d, J = 8.0 Hz, 1H) , 7.57-7.53 (m, 1H) , 7.02-6.95 (m, 2H) , 4.77 (s, 2H) , 4.06 (s, 2H) , 3.80-3.69 (m, 4H) , 1.95-1.87 (m, 2H) , 1.55-1.47 (m, 12H) .
Step 2. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of tert-butyl 2'- ( (2- (tert-butoxycarbonyl) -7- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -3-oxoisoindolin-4-yl) amino) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] -6' (7'H) -carboxylate (43 mg, 0.064 mmol) in DCM (3 mL) was added TFA (1 mL) at 0 ℃. After addition, the mixture was stirred at 25 ℃ for 1 hr. The solvent was removed under vacuum to give a residue, which was purified by prep-HPLC (column: YMC, C18 (250*20 mm, 5 μm) ; mobile phase: [water (0.1%NH4HCO3) -ACN] ; B%: 20%-50%ACN, retention time: 21.5min) to afford compound 12 (3.6 mg, 11.5%yield) . LC-MS (ESI+) : m/z 471.1 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 10.14 (s, 1H) , 8.83 (s, 1H) , 8.69 (d, J = 8.0 Hz, 1H) , 8.46-7.43 (m, 1H) , 7.82 (s, 1H) , 7.73 (d, J = 8.0 Hz, 1H) , 7.61 (d, J = 8.0 Hz, 1H) , 7.54-7.50 (m, 1H) , 6.97-6.96 (t, J = 4.0 Hz, 1H) , 6.83-6.81 (d, J = 4.0 Hz, 1H) , 4.40 (s, 2H) , 4.04 (s, 2H) , 3.79-3.71 (m, 4H) , 1.90-1.87 (m, 2H) , 1.48-1.45 (m, 2H) .
Preparation of Example 13
Step 1. tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'-methyl-2, 3, 5, 6, 6', 7'hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate
To a solution of 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] (56 mg, 0.23 mmol) and 2-methylpropan-2-yl 7-amino-4- (7-fluoroimidazo [3, 2-a] pyridin-3-yl) -1-oxo-2, 3-dihydro-1H-isoindole-2-carboxylate (107 mg, 0.28 mmol) in dioxane (0.8 mL) were added Brettphos Pd G3 (15 mg, 0.05 mmol) and Cs2CO3 (153 mg, 0.47 mmol) at 20 ℃. After addition, the mixture was degassed and purged with N2 for 3 times, and then the mixture was stirred at 120 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the resulting mixture was poured into water (10 mL) and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (MeOH/DCM = 10: 1, v/v ) to afford 13-1 (18 mg, 5.9%yield) . LC-MS (ESI+) : m/z 585.3 (M+H) +.
Step 2. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of 2-methylpropan-2-yl 4- (7-fluoroimidazo [3, 2-a] pyridin-3-yl) -7- [ (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] -2'-yl) amino] -1-oxo-2, 3-dihydro-1H-isoindole-2-carboxylate (25 mg, 0.04 mmol) in DCM (3 mL) was added TFA (1 mL, 0.01 mmol) at 0 ℃. After addition, the mixture was stirred at 25 ℃ for 0.5 h. The reaction mixture was concentrated under reduced pressure to give a residue, which was purified by prep-HPLC (column: YMC, C18 (250*20 mm, 5 μm) ; mobile phase: [water (0.1%NH4HCO3) -ACN] ; B%: 30%-50%ACN, retention time: 16.5min) to afford compound 13 (2.9 mg, 13.4%yield) . LC-MS (ESI+) : m/z 485.1 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 10.15 (s, 1H) , 8.85 (s, 1H) , 8.66 (d, J = 4.0 Hz, 1H) , 8.48-8.45 (m, 1H) , 8.06 (d, J = 8.0 Hz, 1H) , 7.84 (s, 1H) , 7.75 (d, J = 8.0 Hz, 1H) , 7.55-7.52 (m, 1H) , 6.98 (d, J = 4.0 Hz, 1H) , 6.83 (d, J = 8.0 Hz, 1H) , 4.41 (s, 2H) , 3.93 (s, 2H) , 3.91-3.82 (m, 4H) , 2.44 (s, 3H) , 1.98-1.94 (m, 2H) , 1.49 (d, J = 12.0 Hz, 2H) .
Preparation of Example 14
Step 1. 2, 4-dichloro-1, 6-naphthyridin-5 (6H) -one
To a solution of ethyl 4, 6-dichloro-2-methylpyridine-3-carboxylate (5.00 g, 21.36 mmol) in (CH3) 3COH (50 mL) , were added 1, 3, 5-triazine (3.50 g, 42.71 mmol) and (CH3) 3COK (4.8 g, 42.716 mmol) . After addition, the reaction was stirred at 90 ℃ for 1 hr. After cooling to 25 ℃, the reaction mixture was poured into water (20 mL) and extracted with EtOAc (20 mL x 3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 2%) in dichloromethane to afford 14-1 (889 mg, 19.3%yield) . LC-MS (ESI+) : m/z 215.0 (M+H) +.
Step 2. 2, 4-dichloro-6- (4-methoxybenzyl) -1, 6-naphthyridin-5 (6H) -one
To a solution of 2, 4-dichloro-5, 6-dihydropyrido [4, 3-b] pyridin-5-one (889 mg, 4.14mmol) in DMF (10 mL) were added Cs2CO3 (2.70 g, 8.28 mmol) at 25 ℃. After addition, the mixture was stirred at 25 ℃ for 30 min. Then, 4- (chloromethyl) -1-methoxybenzene (648 mg, 4.14 mmol) was added in one portion. After that, the reaction was stirred at 25 ℃ for 3 hrs. The reaction mixture was poured into water (40 mL) and extracted with EtOAc (20 mL x 3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford 14-2 (450 mg, 32.4%yield) . LC-MS (ESI+) : m/z 335.0 (M+H) +.
Step 3. N- (4- (4-chloro-6- (4-methoxybenzyl) -5-oxo-5, 6-dihydro-1, 6-naphthyridin-2-yl) -3-fluorophenyl) cyclohexanecarboxamide
To a solution of 2, 4-dichloro-6- [ (4-methoxyphenyl) methyl] -5, 6-dihydropyrido [4, 3-b] pyridin-5-one (400 mg, 1.19 mmol) and N- [3-fluoro-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) phenyl] cyclohexanecarboxamide (414 mg, 1.19 mmol) in dioxane (10 mL) and H2O (2 mL) were added Pd (dppf) Cl2 (87 mg, 0.12 mmol) and K2CO3 (494 mg, 3.58 mmol) . After addition, the mixture was degassed and purged with N2 for 3 times, and then the mixture was stirred at 110 ℃ for 4 hrs under N2 atmosphere. After cooling to room temperature, the resulting solution was poured into water (20 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 3%) in dichloromethane to afford 14-3 (297 mg, 32%yield) . LC-MS (ESI+) : m/z 518.3 (M-H) -.
Step 4. N- (3-fluoro-4- (6- (4-methoxybenzyl) -4- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -5-oxo-5, 6-dihydro-1, 6-naphthyridin-2-yl) phenyl) cyclohexanecarboxamide
To a solution of N- (4- {4-chloro-6- [ (4-methoxyphenyl) methyl] -5-oxopyrido [4, 3-b] pyridin-2-yl} -3-fluorophenyl) cyclohexanecarboxamide (24 mg, 0.04 mmol) and 6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] -2'-amine (10 mg, 0.04 mmol) in dioxane (0.5 mL) were added BrettPhos Pd G3 (41 mg, 0.04 mmol) and Cs2CO3 (30 mg, 0.09 mmol) . After addition, the mixture was degassed and purged with N2 for 3 times, and then the mixture was stirred at 130 ℃ for 3
hrs under N2 atmosphere. After cooling to room temperature, the resulting solution was poured into water (10 mL) and extracted with EtOAc (15 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC with DCM/MeOH = 20: 1, v/v to afford 14-4 (18 mg, 28%yield) . LC-MS (ESI+) : m/z 703.3 (M+H) +.
Step 5. N- (3-fluoro-4- (4- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -5-oxo-5, 6-dihydro-1, 6-naphthyridin-2-yl) phenyl) cyclohexanecarboxamide
To a solution of N- (3-fluoro-4- {6- [ (4-methoxyphenyl) methyl] -4- [ (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] -2'-yl) amino] -5-oxopyrido [4, 3-b] pyridin-2-yl} phenyl) cyclohexanecarboxamide (15 mg, 0.02 mmol) in DCM (1.8 mL) was added TfOH (0.6 mL, 6.77 mmol) at 0 ℃. After addition, the mixture was stirred at 25 ℃ for 0.5 hr. The resulting mixture was poured into water (10 mL) and extracted with DCM (10 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC with DCM/MeOH = 10: 1, v/v to afford compound 14 (11 mg, 84%yield) . LC-MS (ESI+) : m/z 583.4 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 12.71 (s, 1H) , 11.68 (d, J = 4.0 Hz, 1H) , 10.23 (s, 1H) , 9.09 (s, 1H) , 8.15-8.05 (m, 2H) , 7.83-7.79 (m, 1H) , 7.45-7.41 (m, 2H) , 6.91 (d, J = 8.0 Hz, 1H) , 6.62 (d, J = 8.0 Hz, 1H) , 3.94 (s, 2H) , 3.88-3.79 (m, 4H) , 2.45 (s, 3H) , 2.40-2.37 (m, 1H) , 1.99-1.97 (m, 2H) , 1.83-1.80 (m, 3H) , 1.70-1.66 (m, 1H) , 1.48-1.43 (m, 4H) , 1.31-1.25 (m, 4H) .
Preparation of Example 15
Step 1. 1'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -6'-chloro-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine]
To a solution of 6'-chloro-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] (100 mg, 0.44 mmol) in DMF (5 mL) were added 1-bromo-4, 4, 5, 5-tetramethyl-3-oxa-4-silahexane (212 mg, 0.89 mmol) and Cs2CO3 (435 mg, 1.33 mmol) at 20 ℃. After addition, the mixture was stirred at 80 ℃for 16 hrs. After cooling to 25 ℃, the reaction mixture was poured into water (20 mL) , the aqueous layer was extracted with DCM (20 mL*2) . The combined organic layers were washed with brine (20 mL) ,
dried over anhydrous sodium sulfate, and concentrated. The crude product was purified by prep-TLC with (DCM/MeOH = 20: 1, v/v) to afford 15-1 (110 mg, 0.201 mmol, 45.2%) . LC-MS (ESI+) : m/z 383.1 (M+H) +.
Step 2. tert-butyl 7- ( (1'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
To a solution of 1'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -6'-chloro-1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridine] (85 mg, 0.22 mmol) in 1, 4-dioxane (2 mL) were added 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2, 3-dihydro-1H-inden-1-one (62 mg, 0.22 mmol) , BrettPhos Pd G3 (20 mg, 0.02 mmol) , Cs2CO3 (144 mg, 0.44 mmol) at 20 ℃. After addition, the mixture was degassed and purged with N2 for 3 times, and then stirred at 130 ℃ for 3 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was partitioned between water (20 mL) and EtOAc (20 mL) . The organic phase was separated, washed with brine (10 mL) , dried over anhydrous sodium sulfate, and concentrated to give a residue, which was purified by flash silica gel chromatography (25gSilica Flash Column, Eluent of 0-5%Methanol/Dichloromethane ether gradient @40mL/min) to afford 15-2 (49 mg, 0.06 mmol, 30.3%) . LC-MS (ESI+) : m/z 729.4 (M+H) +.
Step 3. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (1'- (2-hydroxyethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) isoindolin-1-one
A mixture of tert-butyl 7- ( (1'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -1', 2, 2', 3, 5, 6-hexahydrospiro [pyran-4, 3'-pyrrolo [2, 3-b] pyridin] -6'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (5 mg, 0.01 mmol) in DCM (3mL) and TFA (1mL) was stirred at 25 ℃ for 2 hrs. The solvent was removed under vacuum to afford residue, which was purified by prep-HPLC (column: YMC, C18 (250*20mm, 5μm) ; mobile phase: [water (0.1%HCOOH) -ACN] ; B%: 35ACN%-65ACN%, retention time: 16.0min) to afford compound 15 (12.4 mg, 0.024 mmol, 39.9%) . LC-MS (ESI+) : m/z 515.1 (M+H) +. 1H NMR (400 MHz, CD3OD) δ 9.91 (s, 1H) , 8.83 (s, 1H) , 8.73-8.71 (m, 1H) , 8.62-8.60 (m, 1H) , 8.34 (s, 1H) , 8.01-7.98 (m, 1H) , 7.75-7.73 (d, J = 8.0 Hz, 1H) , 7.50-7.45 (m, 1H) , 7.32-7.30 (m, 1H) , 6.11-6.09 (d, J = 8.0 Hz, 1H) , 4.38 (s, 2H) , 3.86-3.84 (m, 4H) , 3.50-3.47 (m, 6H) , 1.85-1.79 (m, 2H) , 1.58-1.55 (m, 2H) .
Preparation of Example 16
Step 1. 2-chloro-6- (tetrahydrofuran-3-yl) -5, 6-dihydro-7H-pyrrolo [3, 4-b] pyridin-7-one
To a solution of methyl 3- (bromomethyl) -6-chloropicolinate (2.00 g, 7.56 mmol) and tetrahydrofuran-3-amine hydrochloride (0.69 g, 7.94 mmol) in THF (20 mL) was added DIEA (2.90 g, 22.68 mmol) . After addition, the resulting mixture was stirred at 35 ℃ for 18 hrs, then the mixture was concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 100%) in petroleum ether to afford the 16-1 (0.72 g, 3.03 mmol, 40.1%yield) as a yellow solid. LC-MS (ESI+) : m/z 239.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 8.15 (d, J = 8.0 Hz, 1H) , 7.71 (d, J = 8.0 Hz, 1H) , 5.05 -4.84 (m, 1H) , 4.53 (s, 2H) , 4.05 -3.94 (m, 1H) , 3.88 (dd, J = 8.0, 4.0 Hz, 1H) , 3.79 -3.66 (m, 2H) , 2.34 -2.21 (m, 1H) , 2.11 -1.97 (m, 1H) .
Step 2. 2'-chloro-6'- (tetrahydrofuran-3-yl) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
To a solution of 2-chloro-6- (tetrahydro-3-furyl) -6, 7-dihydro-5H-pyrrolo [3, 4-b] pyridin-7-one (1.00 g, 4.19 mmol) in DMF (25 mL) were added sodium hydride (420.7 mg, 10.473 mmol, 60%purity) at 0 ℃ under N2. After addition, the mixture was stirred at 20 ℃ for 1 hr, then 2, 2'-Dibromodiethyl ether (0.63 mL, 5.03 mmol) was added dropwise and the resulting mixture was stirred at 20 ℃ for 1 hr. The reaction mixture was quenched by 150 mL of water and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 100%) in petroleum ether to afford the 16-2 (0.75 g, 2.43 mmol, 58.0%yield) as a white solid. LC-MS (ESI+) : m/z 308.8 [M+H] +.
Step 3. 2'-chloro-6'- (tetrahydrofuran-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine]
To a suspension of 2'-chloro-6'- (tetrahydrofuran-3-yl) -2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one (0.75 g, 2.43 mmol) in THF (10 mL) was added NaBH4 (0.46 g, 12.14 mmol) in portions. After addition, the mixture was cooled down to 0 ℃ and boron trifluoride diethyl etherate (4.46 mL, 17.00 mmol, 48%purity) was added at 0 ℃ within 30 mins and the mixture was stirred at 30 ℃ for 12 hrs. The resulting mixture was quenched by addition of MeOH (20 mL) and concentrated to give a residue, which was adjusted pH to ~1 with HCl (aq, 4 M) . After being stirred at 20 ℃ for 30 mins, the solution was adjusted pH to ~9 with NaOH (aq, 2 M) and extracted with EtOAc (50 mL*4) . The combined organic layers were washed with brine (80 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford the 16-3 (0.30 g, 0.88 mmol, 36.0%yield) as a white solid. LC-MS (ESI+) : m/z 295.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.24 (d, J = 8.0 Hz, 1H) , 7.32 (d, J = 8.0 Hz, 1H) , 4.14 -3.99 (m, 2H) , 3.96 -3.79 (m, 5H) , 3.78 -3.73 (m, 1H) , 3.72 -3.67 (m, 1H) , 3.66 -3.58 (m, 2H) , 2.09 -1.83 (m, 4H) , 1.51 (t, J = 8.0 Hz, 2H) .
Step 4. tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxo-7- ( (6'- (tetrahydrofuran-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindoline-2-carboxylate
To a mixture of 2'-chloro-6'- (tetrahydrofuran-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.10 g, 0.34 mmol) and tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (0.13 g, 0.34 mmol) in dioxane (3 mL) were added RuPhos Pd G3 (0.028 g, 0.034 mmol) , Cs2CO3 (0.33 g, 1.02 mmol) . After addition, the resulting mixture was purged with N2 for 3 mins and stirred at 135 ℃ for 3 hrs under N2 atmosphere. After cooling to room temperature, the reaction was poured into water (30 mL) and extracted with EtOAc (30 mL*3) . The combined organic layer were washed with brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM/MeOH=20/1, v/v) to afford the 16-4 (0.16 g, 0.20 mmol, 58.9%yield) as a yellow solid. LC-MS (ESI+) : m/z 641.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.86 (s, 1H) , 8.77 (d, J = 8.0 Hz, 1H) , 8.39 (t, J = 8.0 Hz, 1H) , 8.14 (d, J = 8.0 Hz, 1H) , 7.86 -7.78 (m, 2H) , 7.55 (dd, J = 12.0, 4.0 Hz, 1H) , 6.99 (td, J = 8.0, 4.0 Hz, 1H) , 6.95 (d, J = 8.0 Hz, 1H) , 4.76 (s, 2H) , 4.15 -4.02 (m, 2H) , 3.95 -3.78 (m, 6H) , 3.75 -3.69 (m, 1H) , 3.68 -3.61 (m, 2H) , 3.45 -3.36 (m, 2H) , 2.06 -1.89 (m, 4H) , 1.51 (s, 9H) .
Step 5. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (tetrahydrofuran-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxo-7- ( (6'- (tetrahydrofuran-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindoline-2-carboxylate (0.16 g, 0.24 mmol) in DCM (6 mL) was added TFA (2 mL) dropwise. After addition, the resulting mixture was stirred at 20 ℃ for 1 hour, diluted with DCM (20 mL) , washed with saturated NaHCO3 solution (30 mL) , followed by brine (40 mL) , dried over Na2SO4, filtered and concentrated under reduced pressure to give a residue, which was purified by Prep-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15ml/min; gradient: 35-55%; Retention Time: 11min of 20min) to afford compound 16 (68.0 mg, 0.13 mmol, 51.5%yield) . LC-MS (ESI+) : m/z 541.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.15 (s, 1H) , 8.84 (s, 1H) , 8.69 (d, J = 8.0 Hz, 1H) , 8.44 (t, J = 8.0 Hz, 1H) , 8.10 (d, J = 8.0 Hz, 1H) , 7.83 (s, 1H) , 7.73 (d, J = 8.0 Hz, 1H) , 7.52 (dd, J = 8.0, 4.0 Hz, 1H) , 6.97 (td, J = 8.0, 4.0 Hz, 1H) , 6.81 (d, J = 8.0 Hz, 1H) , 4.40 (s, 2H) , 4.15 -4.00 (m, 2H) , 3.98 -3.74 (m, 6H) , 3.74 -3.60 (m, 3H) , 2.11 -1.81 (m, 4H) , 1.58 -1.41 (m, 2H) .
Preparation of Example 17
Step 1. Tert-butyl 3- (2-chloro-7-oxo-5, 7-dihydro-6H-pyrrolo [3, 4-b] pyridin-6-yl) pyrrolidine-1-carboxylate
To a solution of methyl 3- (bromomethyl) -6-chloropicolinate (2.00 g, 7.56 mmol) in THF (20 mL) were added DIEA (3.76 mL, 22.68 mmol) and tert-butyl 3-aminopyrrolidine-1-carboxylate (1.40 g, 7.56 mmol) . After addition, the resulting mixture was stirred at 30 ℃ for 18 hrs. The reaction was concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford the 17-1 (1.60 g, 4.74 mmol, 62.6%) as a white solid. LC-MS (ESI+) : m/z 282.2 [M-56+H] +. 1H NMR (400 MHz, CDCl3) δ 8.15 (d, J = 8.0 Hz, 1H) , 7.70 (d, J = 8.0 Hz, 1H) , 4.78 (t, J = 8.0 Hz, 1H) , 4.53 (s, 2H) , 3.65-3.52 (m, 1H) , 3.51-3.42 (m, 1H) , 3.41-3.35 (m, 2H) , 2.26-2.03 (d, J = 14.0 Hz, 2H) , 1.41 (s, 9H) .
Step 2. Tert-butyl 3- (2'-chloro-7'-oxo-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -6' (7'H) -yl) pyrrolidine-1-carboxylate
To a solution of tert-butyl 3- (2-chloro-7-oxo-5, 7-dihydro-6H-pyrrolo [3, 4-b] pyridin-6-yl) pyrrolidine-1-carboxylate (1.60 g, 4.74 mmol) in N, N-dimethylmethanamide (16 mL) was added NaH (0.60 g, 14.21 mmol, 60%purity) at 0 ℃ under N2 for 0.5 hr, followed by addition of 1-bromo-2- [ (2-bromoethyl) oxy] ethane (2.20 g, 9.47 mmol) dropwise. After addition, the reaction mixture was stirred at 25 ℃ under N2 for 2 hrs. The resulting mixture was quenched by H2O (30 mL) . and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (15 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 25%) in petroleum ether to afford the 17-2 (1.20 g, 1.77 mmol, 37.3%yield) as a yellow solid. LC-MS (ESI+) : m/z 351.9 [M-56+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.74 (d, J = 8.0 Hz, 1H) , 7.67 (d, J = 8.0 Hz, 1H) , 4.32 (q, J = 8.0 Hz, 1H) , 4.04 -3.84 (m, 4H) , 3.80 -3.66 (m, 1H) , 3.55 (t, J = 8.0 Hz, 1H) , 3.44 (q, J = 8.0 Hz, 1H) , 3.32 -3.20 (m, 1H) , 2.75 -2.61 (m, 1H) , 2.37 -2.23 (m, 2H) , 1.98 -1.87 (m, 1H) , 1.54 -1.43 (m, 2H) , 1.41 (s, 9H) .
Step 3. Tert-butyl 3- (2'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -6' (7'H) -yl) pyrrolidine-1-carboxylate
To a solution of tert-butyl 3- (2'-chloro-7'-oxo-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -6' (7'H) -yl) pyrrolidine-1-carboxylate (1.20 g, 2.94 mmol) in tetrahydrofuran (12 mL) was added NaBH4 (0.60 g, 14.71 mmol) in portions at 20 ℃. After addition, the mixture was cooled down to 0 ℃ and BF3*Et2O (5.64 mL, 20.59 mmol, 46%purity) was added dropwise. After addition, the resulting mixture was stirred at 20 ℃ for 12 hrs and quenched by addition of MeOH (10 mL) . The mixture was stirred at 20 ℃ for 0.5 hr and concentrated to give a residue, which was diluted with water (10 mL) and adjusted the pH to 4~5. The suspension was stirred at 20 ℃ for 1 hr and then adjusted pH to 9~10 by saturated Na2CO3, extracted with EtOAc (50 mL*3) , the combined organic layers were concentrated to afford the title compound (0.55 g, 1.12 mmol, 38.0%yield) as a white solid, which was used in next step directly without further purification. LC-MS (ESI+) : m/z 394.0 [M+H] +.
Step 4. 2'-chloro-6'- (pyrrolidin-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of tert-butyl 3- (2'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -6' (7'H) -yl) pyrrolidine-1-carboxylate (0.35 g, 0.71 mmol) in DCM (10 mL) was added HCl (7.11 mL, 28.43 mmol, 4 M in dioxane) . After addition, the reaction mixture was stirred at 20 ℃ for 1 hr. The mixture was filtered and concentrated to afford the title compound (0.35 g, crude) as a yellow oil, which was used in next step directly without purification. LC-MS (ESI+) : m/z 293.9 [M+H] +.
Step 5. 2'-chloro-6'- (1-methylpyrrolidin-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2'-chloro-6'- (pyrrolidin-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.35 g, 0.95 mmol) in MeOH (4 mL) were added NaBH (OAc) 3 (0.40 g, 1.91 mmol) , paraformaldehyde (0.17 g, 1.91 mmol) . After addition, the reaction mixture was stirred at 50 ℃for 2 hrs. The resulting mixture was poured into water (60 mL) and then extracted with DCM (10 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with MeOH (from 0%to 5%) in dichloromethane to afford the 17-6 (0.18 g, 0.59 mmol, 61.7%yield) as a white solid. LC-MS (ESI+) : m/z 308.3 [M+H] +. 1H NMR (400 MHz, CDCl3) δ 7.89 (d, J = 8.0 Hz, 1H) , 7.18 (d, J = 8.0 Hz, 1H) , 4.18 (s, 2H) , 4.02 -3.96 (m, 2H) , 3.89 -3.73 (m, 2H) , 2.91 -2.74 (m, 2H) , 2.63 -2.53 (m, 2H) , 2.44 (s, 3H) , 2.11 -2.03 (m, 3H) , 2.01 -1.93 (m, 2H) , 1.61 -1.53 (m, 2H) .
Step 6. Tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (1-methylpyrrolidin-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate
A mixture of 2'-chloro-6'- (1-methylpyrrolidin-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.18 g, 0.49 mmol) , tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (0.28 g, 0.79 mmol) , Cs2CO3 (0.48 g, 1.46 mmol) , BrettPhos Pd G3 (29.5 mg, 0.032 mmol) in dioxane (4.5 mL) was degassed and purged with N2 for 3 times. Then, the resulting mixture was stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction was filtered and the cake was washed with DCM: MeOH (10: 1; v/v 3 mL*3) . The filtrate was
concentrated to give a residue, which was purified by column chromatography on silica gel eluting with MeOH (from 0%to 5%) in dichloromethane to afford the 17-7 (50.0 mg, 0.076 mmol, 15.7%yield) as a yellow solid. LC-MS (ESI+) : m/z 654.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.89 (s, 1H) , 8.77 (d, J = 8.0 Hz, 1H) , 8.37 (t, J = 8.0 Hz, 1H) , 8.16 (d, J = 8.0 Hz, 1H) , 7.88 -7.79 (m, 2H) , 7.56 (dd, J = 8.0, 4.0 Hz, 1H) , 7.06 -6.96 (m, 2H) , 4.76 (s, 2H) , 4.17 (brs, 2H) , 3.95 -3.82 (m, 4H) , 3.41 -3.36 (m, 2H) , 3.18 -3.00 (m, 3H) , 2.81 (br s, 3H) , 2.24 -2.03 (m, 3H) , 2.00 -1.85 (m, 3H) , 1.52 (s, 9H) .
Step 7. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (1-methylpyrrolidin-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (1-methylpyrrolidin-3-yl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate (50.0 mg, 0.076 mmol) in DCM (5 mL) was added TFA (1 mL, 13.06 mmol) . After addition, the resulting mixture was stirred at 20 ℃ for 2 hrs. After completion, the reaction was diluted with DCM (10 mL) and water (10 mL) , then adjusted pH to ~9 with Na2CO3, separated and the aqueous phase was extracted with DCM (10 mL*2) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by pre-TLC (DCM: MeOH = 8/1, v/v) and further purified by pre-HPLC ( (column: YMC, C18 (250*20 mm, 5 μm) ; mobile phase: [water (0.1%NH4HCO3) -ACN] ; B%: 5%-55%ACN, retention time: 50min of 55min) ) to afford compound 17 (10.0 mg, 0.018 mmol, 23.6%yield) . LC-MS (ESI+) : m/z 554.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.14 (s, 1H) , 8.84 (s, 1H) , 8.72 (d, J = 8.0 Hz, 1H) , 8.44 (dd, J = 8.0, 4.0 Hz, 1H) , 8.08 (d, J = 8.0 Hz, 1H) , 7.83 (s, 1H) , 7.73 (d, J = 8.0 Hz, 1H) , 7.53 (dd, J = 8.0, 4.0 Hz, 1H) , 6.97 (td, J = 8.0, 4.0 Hz, 1H) , 6.80 (d, J = 8.0 Hz, 1H) , 4.40 (s, 2H) , 4.11 (s, 2H) , 3.94 -3.74 (m, 5H) , 2.66 -2.53 (m, 3H) , 2.47 -2.37 (m, 1H) , 2.29 (s, 3H) , 2.03 -1.83 (m, 4H) , 1.49 (d, J = 12.0 Hz, 2H) .
Preparation of Example 18
Step 1. tert-butyl 7-amino-4- (7-cyanoimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
To a mixture of tert-butyl 7-amino-1-oxo-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) isoindoline-2-carboxylate (0.49 g, 1.31 mmol) , 3-bromoimidazo [1, 2-a] pyridine-7-carbonitrile (0.29 g, 1.31 mmol) , K2CO3 (0.54 g, 3.93 mmol) in dioxane (8 mL) and H2O (1 mL) was added XPhos Pd G3 (0.11 g, 0.13 mmol) . The resulting mixture was degassed and purged with N2 for 3 times and stirred at 100 ℃ for 3 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was
poured into water (50 mL) and extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford the 18-1 (0.34 g, 0.87 mmol, 66.7%yield) as a white solid. LC-MS (ESI+) : m/z 390.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.42 (s, 1H) , 8.38 (d, J =8.0 Hz, 1H) , 8.05 (s, 1H) , 7.53 (d, J = 8.0 Hz, 1H) , 7.19 (d, J = 8.0 Hz, 1H) , 6.81 (d, J = 8.0 Hz, 1H) , 6.75 (s, 2H) , 4.62 (s, 2H) , 1.47 (s, 9H) .
Step 2. tert-butyl 4- (7-cyanoimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate
To a mixture of 2-methylpropan-2-yl 7-amino-4- (7-cyanoimidazo [1, 2-a] pyridin-3-yl) -1-oxo-2, 3-dihydro-1H-isoindole-2-carboxylate (0.33 g, 0.85 mmol) and 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.22 g, 0.93 mmol) in dioxane (7 mL) were added BrettPhos Pd G3 (0.15 g, 0.17 mmol) and Cs2CO3 (0.55 g, 1.70 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times, and then the mixture was stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into water (30 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (40 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 12: 1, v/v) to afford the 18-2 (0.14 g, 0.24 mmol, 27.9%yield) as a yellow solid. LC-MS (ESI+) : m/z 592.3 [M+H] +.
Step 3. 3- (7- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindolin-4-yl) imidazo [1, 2-a] pyridine-7-carbonitrile
To a solution of tert-butyl 4- (7-cyanoimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate (0.14 g, 0.23 mmol) in DCM (6 mL) was added TFA (2 mL) dropwise. After addition, the resulting mixture was stirred at 20 ℃ for 1 hr and diluted with DCM (20 mL) , washed with saturated NaHCO3 (30 mL) , followed by brine (40 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by Prep-HPLC (column: YMC, C18 (250*20 mm, 5 μm) ; mobile phase: [water (0.1%FA) -ACN] ; B%: 5%-15%ACN, retention time: 15min of 20min) to afford compound 18 (40.7 mg, 0.08 mmol, 36.3%yield) . LC-MS (ESI+) : m/z 491.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.19 (s, 1H) , 8.88 (s, 1H) , 8.68 (d, J = 8.0 Hz, 1H) , 8.57 (d, J = 8.0 Hz, 1H) , 8.45 (s, 1H) , 8.17 (s, 1H) , 8.15 (s, 1H, HCOOH) , 8.07 (d, J = 8.0 Hz, 1H) , 7.80 (d, J = 8.0 Hz, 1H) , 7.21 (dd, J = 8.0, 4.0 Hz, 1H) , 6.84 (d, J = 8.0 Hz, 1H) , 4.44 (s, 2H) , 3.96 (s, 2H) , 3.93 -3.86 (m, 2H) , 3.81 (td, J = 12.0, 4.0 Hz, 2H) , 2.46 (s, 3H) , 2.05 -1.91 (m, 2H) , 1.50 (d, J = 12.0 Hz, 2H) .
Preparation of Example 19
Step 1. tert-butyl 7-amino-1-oxo-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) isoindoline-2-carboxylate
To a solution of tert-butyl 7-amino-4-bromo-1-oxoisoindoline-2-carboxylate (0.95 g, 2.90 mmol) in dioxane (10 mL) were added 4, 4, 4', 4', 5, 5, 5', 5'-octamethyl-2, 2'-bi (1, 3, 2-dioxaborolane) (0.88 g, 3.48 mmol) , KOAc (0.85 g, 8.71 mmol) and Pd (dppf) Cl2 (0.21 g, 0.29 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 110 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction mixture was poured into water (30 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford the 19-1 (1.00 g, 2.67 mmol, 92.0%yield) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ 7.54 (d, J = 8.0 Hz, 1H) , 6.75 (brs, 2H) , 6.58 (d, J = 8.0 Hz, 1H) , 4.66 (s, 2H) , 1.51 (s, 9H) , 1.27 (s, 12H) .
Step 2. tert-butyl 7-amino-4- (imidazo [1, 2-a] pyrazin-3-yl) -1-oxoisoindoline-2-carboxylate
To a solution of tert-butyl 7-amino-1-oxo-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) isoindoline-2-carboxylate (0.45 g, 1.20 mmol) in dioxane (8 mL) and H2O (1 mL) were added 3-bromoimidazo [1, 2-a] pyrazine (0.26 g, 1.32 mmol) , K2CO3 (0.50 g, 3.60 mmol) and XPhos Pd G3 (0.10 g, 0.12 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 100 ℃ under N2 for 3 hrs. After cooling to room temperature, the reaction mixture was poured into water (30 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford the 19-2 (0.24 g, 0.52 mmol, 43.7%yield) as a yellow solid. LC-MS (ESI+) : m/z 366.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.12 (s, 1H) , 8.32 (d, J = 4.0 Hz, 1H) , 8.02 (s, 1H) , 7.89 (d, J = 4.0 Hz, 1H) , 7.55 (d, J = 8.0 Hz, 1H) , 6.82 (d, J = 8.0 Hz, 1H) , 6.74 (brs, 2H) , 4.66 (s, 2H) , 1.48 (s, 9H) .
Step 3. tert-butyl 4- (imidazo [1, 2-a] pyrazin-3-yl) -7- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate
To a solution of tert-butyl 7-amino-4- (imidazo [1, 2-a] pyrazin-3-yl) -1-oxoisoindoline-2-carboxylate (0.20 g, 0.54 mmol) in dioxane (7 mL) were added 2 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.14 g, 0.57 mmol) , BrettPhos Pd G3 (0.10 g, 0.11 mmol) and Cs2CO3 (0.36 g, 1.09 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 130 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction mixture was poured into water (30 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 20: 1, v/v) to afford 19-3 (0.17 g, 0.24 mmol, 43.8%yield) as a yellow solid. LC-MS (ESI+) : m/z 568.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.88 (s, 1H) , 9.16 (s, 1H) , 8.75 (d, J =8.0 Hz, 1H) , 8.44 (d, J = 4.0 Hz, 1H) , 8.13 (s, 1H) , 8.08 (d, J = 8.0 Hz, 1H) , 7.93 (d, J = 4.0 Hz, 1H) , 7.89 (d, J = 8.0 Hz, 1H) , 6.96 (d, J = 4.0 Hz, 1H) , 4.81 (s, 2 H) , 3.92 (s, 2 H) , 3.86-3.81 (m, 4H) , 2.42 (s, 3H) , 1.98-1.93 (m, 2H) , 1.51 (s, 9H) , 1.48-1.46 (m, 2H) .
Step 4. 4- (imidazo [1, 2-a] pyrazin-3-yl) -7- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of tert-butyl 4- (imidazo [1, 2-a] pyrazin-3-yl) -7- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate (0.16 g, 0.28 mmol) in DCM (3 mL) was added TFA (1 mL, 13.46 mmol) at 0 ℃. After addition, the reaction mixture was stirred at 15 ℃ for 1 hr. Then, to the reaction mixture was added saturated aq. Na2CO3 solution (20 mL) and extracted with DCM (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15ml/min; gradient: 25-45%; Retention Time: 23min of 30min) to afford compound 19 (45.0 mg, 0.09 mmol, 33.8%yield) . LC-MS (ESI+) : m/z 468.0 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.25 (brs, 1H) , 9.15 (s, 1H) , 8.90 (s, 1H) , 8.68 (d, J = 8.0 Hz, 1H) , 8.48 (d, J = 4.0 Hz, 1H) , 8.13 (s, 1H) , 8.10 (d, J = 8.0 Hz, 1H) , 7.92 (d, J = 4.0 Hz, 1H) , 7.82 (d, J = 8.0 Hz, 1H) , 6.90 (d, J = 8.0 Hz, 1H) , 4.46 (s, 2H) , 4.17-4.01 (m, 2H) , 3.92 -3.82 (m, 4H) , 2.80 -2.52 (m, 3H) , 2.14 -1.94 (m, 2H) , 1.64 -1.55 (m, 2H) .
Preparation of Example 20
Step 1. 2-bromo-5-methoxypyridin-3-amine
A mixture of 2-bromo-5-fluoropyridin-3-amine (5.00 g, 26.18 mmol) in sodium methanolate (50 mL, 130.56 mmol, 30%in MeOH) was stirred at 100 ℃ for 4 hrs. After cooling to room temperature, the mixture was poured into H2O (300 mL) , and adjusted pH to ~6 with 4 N HCl solution, then extracted with EtOAc (150 mL*3) . The combined organic layers were washed with brine (400 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford 20-1 (3.00 g, 14.78 mmol, 57.0%yield) as a brown solid. LC-MS (ESI+) : m/z 203.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.34 (d, J = 4.0 Hz, 1H) , 6.71 (d, J = 4.0 Hz, 1H) , 5.51 (s, 2H) , 3.73 (s, 3H) .
Step 2. 3-amino-5-methoxypicolinonitrile
To a solution of 2-bromo-5-methoxypyridin-3-amine (3.00 g, 14.78 mmol) in DMF (30 mL) were added Zn (CN) 2 (1.74 g, 14.78 mmol) and Zn powder (0.10 g, 1.48 mmol) and BrettPhos Pd G3 (1.00 g, 1.11 mmol) . After addition, the resulting mixture was purged with N2 for 3 times and stirred at 100 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction was poured into 300 mL of water and extracted with EtOAc (80 mL*3) . The combined organic layers were washed with brine (200 mL*2) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford 20-2 (2.50 g, 16.76 mmol, 85.0%yield) as a brown solid. LC-MS (ESI+) : m/z 150.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.67 (d, J = 4.0 Hz, 1H) , 6.77 (d, J = 4.0 Hz, 1H) , 6.35 (s, 2H) , 3.85 (s, 3H) .
Step 3. 3-amino-6-bromo-5-methoxypicolinonitrile
To a solution of 3-amino-5-methoxypyridine-2-carbonitrile (2.50 g, 16.76 mmol) in DMSO (50 mL) and H2O (5 mL) was added NBS (8.90 g, 50.27 mmol) at 20 ℃. After addition, the resulting mixture was stirred at 20 ℃ 16 hr. Then the reaction was poured into 200 mL water and extracted with EA (80 mL*3) . The combined organic layers were washed with brine (200 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford 20-3 (2.00 g, 8.77 mmol, 52.0%yield) as a
light yellow solid. LC-MS (ESI+) : m/z 228.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 6.78 (s, 1H) , 6.55 (brs, 2H) , 3.86 (s, 3H) .
Step 4. 3-amino-5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
To a solution of 3-amino-6-bromo-5-methoxypyridine-2-carbonitrile (1.50 g, 6.58 mmol) and 1-methyl-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) benzo [d] imidazole (3.06 g, 11.84 mmol) in dioxane (20 mL) and H2O (4 mL) were added K2CO3 (2.73 g, 19.74 mmol) and Pd (dppf) Cl2*DCM (0.54 g, 0.66 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 110 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction was filtered, and the cake was washed with EtOAc (20 mL) . The organic layer was poured into H2O (100 mL. ) and extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with MeOH (from 0%to 7%) in DCM to afford 20-4 (0.70 g, 2.51 mmol, 38%yield) as a purple solid. LC-MS (ESI+) : m/z 280.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.12 (s, 1H) , 7.57 (d, J = 8.0 Hz, 1H) , 7.29 (t, J =8.0 Hz, 1H) , 7.14 (d, J = 8.0 Hz, 1H) , 6.85 (s, 1H) , 6.33 (s, 2H) , 3.86 (s, 3H) , 3.67 (s, 3H) .
Step 5. 5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a solution of 3-amino-5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (0.30 g, 1.07 mmol) and 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [4, 3-b] pyridine] (0.26 g, 1.07 mmol) in dioxane (7 mL) were added BrettPhos Pd G3 (0.19 g, 0.22 mmol) and Cs2CO3 (0.88 g, 2.69 mmol) and purged with N2 for 3 times. After addition, the mixture was stirred at 135 ℃ under N2 for 1.5 hrs. After cooling to room temperature, the reaction mixture was poured into H2O (20 mL) and extracted with EtOAc (30 mL*5) . The combined organic layers were washed with brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with MeOH (from 0%to 7%) in DCM to afford 20-5 (0.41 g, 0.85 mmol, 48.0%yield) as a brown solid. LC-MS (ESI+) : m/z 482.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.45 (s, 1H) , 8.16 -8.15 (m, 2H) , 8.08 (d, J = 8.0 Hz, 1H) , 7.63 (d, J = 8.0 Hz, 1H) , 7.35 (t, J = 8.0 Hz, 1H) , 7.24 (d, J = 8.0 Hz, 1H) , 6.99 (d, J = 8.0 Hz, 1H) , 3.92 -3.81 (m, 9H) , 3.73 (s, 3H) , 2.42 (s, 3H) , 2.01 -1.90 (m, 2H) , 1.45 (d, J = 12.0 Hz, 2H) .
Step 6. 5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of 5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile (0.36 g, 0.75 mmol) in DMSO (8 mL) were added K2CO3 (0.31 g, 2.24 mmol) , hydrogen peroxide (0.58 mL, 7.48 mmol, 30%purity) . After addition, the reaction mixture was stirred at 15 ℃ for 1 hr. After completion, the reaction mixture was poured into H2O (90 mL) and extracted with EtOAc (30 mL*6) . The combined organic layers were washed with brine (50 mL) , dried over Na2SO4, filtered and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with
MeOH (from 0%to 7%) in DCM and further purified by prep-TLC (SiO2, DCM: MeOH = 12: 1, v/v) and further purified by pre-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%FA, B: ACN; flow rate: 15ml/min; gradient: 5-35%; Retention Time: 15min of 22min) to afford the title compound (90.0 mg, 0.18 mmol, 24.0%yield) . LC-MS (ESI+) : m/z 500.0 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.81 (s, 1H) , 9.03 (s, 1H) , 8.16 (s, 1H) , 8.07 (d, J = 8.0 Hz, 1H) , 8.04 (d, J = 4.0 Hz, 1H) , 7.67 (d, J = 4.0 Hz, 1H) , 7.59 (dd, J = 8.0, 4.0 Hz, 1H) , 7.43 (dd, J = 8.0, 4.0 Hz, 1H) , 7.33 (t, J = 8.0 Hz, 1H) , 6.79 (d, J = 8.0 Hz, 1H) , 3.93 (s, 2H) , 3.92 -3.70 (m, 10H) , 2.43 (s, 3H) , 1.96 (td, J = 12.0, 4.0 Hz, 2H) , 1.47 (d, J = 12.0 Hz, 2H) .
Preparation of Example 21
Step 1.3-amino-6-bromo-5-methylpicolinonitrile
To a solution of 3-amino-5-methylpicolinonitrile (0.40 g, 3.01 mmol) in DMSO (7 mL) and H2O (0.7 mL) was added NBS (1.60 g, 9.01 mmol) in portions. The resulting mixture was stirred at 10 ℃for 16 hrs. The reaction mixture was poured into water (50 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with water (50 mL) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with dichloromethane to afford 21-1 (0.44 g, 1.99 mmol, 66.3%yield) was obtained as a yellow solid. LC-MS (ESI+) : m/z 212.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.15 (s, 1H) , 6.49 (s, 2H) , 2.24 (s, 3H) .
Step 2. 3-amino-5-methyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
To a mixture of 3-amino-6-bromo-5-methylpicolinonitrile (0.22 g, 1.04 mmol) and 1-methyl-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-benzo [d] imidazole (0.32 g, 1.25 mmol) in dioxane (4.4 mL) and H2O (1.1 mL) were added K2CO3 (0.43 g, 3.11 mmol) and Pd (dppf) Cl2. CH2Cl2 (0.085 g, 0.10 mmol) . After addition, the resulting mixture was purged with N2 for 10 mins and stirred at 110 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction was poured into water (30 mL) and extracted with EtOAc (40 mL*3) . The combined organic layers were washed with water (30 mL) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 15: 1, v/v) to afford 21-2 (0.12 g, 0.42
mmol, 40.5%yield) as a brown solid. LC-MS (ESI+) : m/z 264.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.18 (s, 1H) , 7.61 (d, J = 8.0 Hz, 1H) , 7.33 (t, J = 8.0 Hz, 1H) , 7.14 (d, J = 8.0 Hz, 1H) , 7.13 (s, 1H) , 6.25 (s, 2H) , 3.87 (s, 3H) , 2.08 (s, 3H) .
Step 3. 5-methyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a mixture of 3-amino-5-methyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (0.12 g, 0.45 mmol) and 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.12 g, 0.50 mmol) in dioxane (3 mL) were added Cs2CO3 (0.29 g, 0.90 mmol) and BrettPhos Pd G3 (0.065 g, 0.07 mmol) . After addition, the resulting mixture was purged with N2 for 10 mins and then stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into water (30 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 10: 1, v/v) to afford 21-3 (0.13 g, 0.28 mmol, 61.2%yield) as a yellow solid. LC-MS (ESI+) : m/z 466.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.39 (s, 1H) , 8.22 (s, 1H) , 8.19 (s, 1H) , 8.05 (d, J = 8.0 Hz, 1H) , 7.67 (dd, J = 8.0, 4.0 Hz, 1H) , 7.39 (t, J = 8.0 Hz, 1H) , 7.25 (dd, J = 8.0, 4.0 Hz, 1H) , 6.89 (d, J = 8.0 Hz, 1H) , 3.90 -3.88 (m, 5H) , 3.83 -3.80 (m, 4H) , 2.39 (s, 3H) , 2.18 (s, 3H) , 1.96 -1.90 (m, 2H) , 1.43 (d, J =12.0 Hz, 2H) .
Step 4. 5-methyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of 5-methyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile (0.13 g, 0.28 mmol) in DMSO (4 mL) was added K2CO3 (0.12 g, 0.84 mmol) , followed by addition of hydrogen peroxide (0.1 mL, 2.79 mmol, 30%purity) dropwise. The resulting mixture was stirred at 25 ℃ for 30 mins and poured into water (20 mL) , extracted with EtOAc (30 mL*3) . The combined organic layers were washed with water (30 mL) , followed by brine (40 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by Prep-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15ml/min; gradient: 35-50%; Retention Time: 10min of 20min) to afford compound 21 (15.0 mg, 0.03 mmol, 11.1%yield) . LC-MS (ESI+) : m/z 484.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.59 (s, 1H) , 8.95 (s, 1H) , 8.21 (s, 1H) , 8.08 -8.00 (m, 2H) , 7.78 (d, J = 4.0 Hz, 1H) , 7.63 (d, J = 8.0 Hz, 1H) , 7.38 (t, J = 8.0 Hz, 1H) , 7.31 (d, J = 8.0 Hz, 1H) , 6.78 (d, J = 8.0 Hz, 1H) , 3.92 -3.84 (m, 7H) , 3.80 (t, J = 8.0 Hz, 2H) , 2.41 (s, 3H) , 2.21 (s, 3H) , 2.00 -1.90 (m, 2H) , 1.46 (d, J = 12.0 Hz, 2H) .
Preparation of Example 22
Step 1. 5-cyclopropyl-3-nitropicolinonitrile
To a mixture of 5-bromo-3-nitropicolinonitrile (2.00 g, 8.77 mmol) , potassium cyclopropyltrifluoroborate (1.36 g, 9.21 mmol) , K3PO4 (5.58 g, 26.31 mmol) , and RuPhos (0.33 g, 0.70 mmol) in toluene (20 mL) and H2O (2 mL) was added Pd (OAc) 2 (0.08 g, 0.35 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and then stirred at 90 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction was poured into H2O (40 mL) and extracted with EtOAc (25 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 20%) in petroleum ether to afford 22-1 (1.08 g, 5.71 mmol, 97.0%yield) a white solid. LC-MS (ESI+) : m/z 190.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.85 (d, J = 8.0 Hz, 1H) , 8.41 (d, J = 8.0 Hz, 1H) , 2.34 -2.22 (m, 1H) , 1.29 -1.19 (m, 2H) , 1.11 -0.98 (m, 2H) .
Step 2. 3-amino-5-cyclopropylpicolinonitrile
To a solution of 5-cyclopropyl-3-nitropicolinonitrile (0.80 g, 4.23 mmol) in AcOH (10 mL) was added Fe powder (1.18 g, 21.14 mmol) . After addition, the resulting mixture was stirred at 25℃ for 3 hrs, then poured into 20 mL of water, adjusted pH to ~8 with saturated NaHCO3 (aq) and extracted with EtOAc (50 mL*3) . The combined organic layers were washed with water (100 mL) , followed by brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to afford 22-2 (450 mg, 2.827 mmol, 66.8%) as a yellow solid, which was used in next step directly without purification. LC-MS (ESI+) : m/z 160.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.70 (d, J = 4.0 Hz, 1H) , 6.79 (d, J =4.0 Hz, 1H) , 6.12 (s, 2H) , 1.88 (tt, J = 8.4, 5.0 Hz, 1H) , 1.04 (dd, J = 8.4, 2.3 Hz, 2H) , 0.72 (dd, J = 4.9, 2.2 Hz, 2H) .
Step 3. 3-amino-6-bromo-5-cyclopropylpicolinonitrile
To a solution of 3-amino-5-cyclopropylpyridine-2-carbonitrile (0.40 g, 2.51 mmol) in CH3CN (8 mL) was added NBS (0.45 g, 2.51 mmol) in portions and then the mixture was stirred at 20 ℃ for 2 hrs. The reaction mixture was concentrated under reduced pressure to give a residue, which was purified
by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford 22-3 (0.30 g, 1.27 mmol, 50.11%yield) as a yellow solid. LC-MS (ESI+) : m/z 238.0 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 6.82 (s, 1H) , 6.38 (s, 2H) , 2.06 -1.93 (m, 1H) , 1.11 -1.04 (m, 2H) , 0.78 -0.54 (m, 2H) .
Step 4. 3-amino-5-cyclopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
To a mixture of 3-amino-6-bromo-5-cyclopropylpicolinonitrile (0.30 g, 1.26 mmol) , 1-methyl-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-benzo [d] imidazole (0.33 g, 2.02 mmol) and K2CO3 (0.52 g, 3.78 mmol) in dioxane (8 mL) and H2O (0.8 mL) was added Pd (dppf) Cl2. CH2Cl2 (0.11g, 0.13 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 110 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction was poured into water (10 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with water (20 mL) , followed by brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 6%) in dichloromethane to afford 22-4 (300 mg, 1.04 mmol, 82.3%yield) as a brown solid. LC-MS (ESI+) : m/z 290.1 [M+H] +.
Step 5. 5-cyclopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a mixture of 3-amino-5-cyclopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (0.15 g, 0.52 mmol) , 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.13 g, 0.52 mmol) , Cs2CO3 (0.34 g, 1.04 mmol) in dioxane (4 mL) was added BrettPhos Pd G3 (0.050 g, 0.052 mmol) . After addition, the resulting mixture was purged with N2 for 10 mins and stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling room temperature, the reaction was partitioned between water (30 mL) and EtOAc (30 mL) . The organic phase was separated, and the aqueous phase was extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 10%) in dichloromethane to afford 22-5 (0.11 g, 0.18 mmol, 34.5%yield) as a green solid. LC-MS (ESI+) : m/z 492.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.38 (s, 1H) , 8.20 (s, 1H) , 8.06 (d, J = 8.0 Hz, 1H) , 7.85 (s, 1H) , 7.67 (d, J = 8.0 Hz, 1H) , 7.40 (t, J = 8.0 Hz, 1H) , 7.26 (d, J = 8.0 Hz, 1H) , 6.89 (d, J = 8.0 Hz, 1H) , 3.89 (s, 3H) , 3.87 -3.79 (m, 6H) , 2.40 (s, 3H) , 1.99 -1.90 (m, 2H) , 1.80 -1.71 (m, 1H) , 1.44 (d, J = 12.0 Hz, 2H) , 0.78 (d, J = 8.0 Hz, 2H) , 0.64 (d, J = 8.0 Hz, 2H) .
Step 6. 5-cyclopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of 5-cyclopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile (0.22 g, 0.45 mmol) in DMSO (8 mL) were added K2CO3 (0.19 g, 1.34 mmol) and hydrogen peroxide (0.6 mL, 5.29 mmol, 30%purity) . The mixture was stirred at 20 ℃ for 0.5 hrs. The reaction mixture was poured into water (20 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with
brine (40 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 8: 1, v/v) to afford compound 22 (30.0 mg, 0.058 mmol, 12.9%yield) . LC-MS (ESI+) : m/z 510.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.59 (s, 1H) , 8.76 (s, 1H) , 8.19 (s, 1H) , 8.05 (d, J = 8.0 Hz, 1H) , 8.00 (d, J = 4.0 Hz, 1H) , 7.75 (d, J = 4.0 Hz, 1H) , 7.63 (dd, J = 8.0, 4.0 Hz, 1H) , 7.39 (t, J = 8.0 Hz, 1H) , 7.33 (d, J = 8.0 Hz, 1H) , 6.74 (d, J = 8.0 Hz, 1H) , 3.93 -3.85 (m, 6H) , 3.80 (t, J = 12.0 Hz, 2H) , 2.43 (s, 3H) , 2.03 -1.80 (m, 4H) , 1.47 (d, J = 12.0 Hz, 2H) , 0.82 -0.74 (m, 2H) , 0.69 -0.59 (m, 2H) .
Preparation of Example 23
Step 1. 2-bromo-5-isopropoxypyridin-3-amine
To a solution of potassium tert-butoxide (14.7 g, 130.89 mmol) in isopropyl alcohol (125 mL) was added 2-bromo-5-fluoropyridin-3-amine (5.00 g, 26.18 mmol) at 20 ℃ in portions. After addition, the mixture was stirred at 120 ℃ for 16 hrs. After cooling down to room temperature, additional potassium tert-butoxide (5.90 g, 52.36 mmol) was added and the mixture was stirred at 120 ℃ for another 6 hrs. After cooling to room temperature, the mixture was poured into H2O (350 ml) , extracted with EtOAc (200 mL*3) . The combined organic layers were washed with brine (200 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 100%) in petroleum ether to afford 23-1 (2.83 g, 12.25 mmol, 46.8%yield) as a brown oil. LC-MS (ESI+) : m/z 231.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.54 (d, J = 2.4 Hz, 1H) , 6.70 (d, J = 2.4 Hz, 1H) , 6.19 (s, 2H) , 4.60 (q, J = 6.0 Hz, 1H) , 1.29 (d, J = 6.0 Hz, 6H) .
Step 2. 3-amino-5-isopropoxypicolinonitrile
To a solution of 2-bromo-5-isopropoxypyridin-3-amine (3.21 g, 13.89 mmol) in DMF (64 mL) were added Zn powder (0.10 g, 1.39 mmol) , BrettPhos Pd G3 (1.30 g, 1.39 mmol) and Zn (CN) 2 (1.60 g, 13.89 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and was stirred at 100 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the mixture was poured into H2O (20 mL) , extracted with EtOAc (100 mL*2) . The combined organic layers were washed with water (100 mL*2) , followed by brine (100 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate
(from 0%to 30%) in petroleum ether to afford 23-2 (1.44 g, 8.11 mmol, 58.4%yield) as a yellow solid. LC-MS (ESI+) : m/z 178.3 [M+H] +.
Step 3. 3-amino-6-bromo-5-isopropoxypicolinonitrile
To a solution of 3-amino-5-isopropoxypicolinonitrile (1.42 g, 8.01 mmol) in CH3CN (15 mL) was added NBS (1.7 g, 9.61 mmol) in portions. After addition, the resulting mixture was stirred at 20 ℃for 2 hrs. Then the reaction was poured into H2O (10 ml) , and extracted with EtOAc (25 mL*2) , the combined organic layers were washed with brine (40 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford 23-3 (1.74 g, 6.76 mmol, 84.4%yield) as a white solid. LC-MS (ESI+) : m/z 256.2 [M+H] +. 1H NMR (400 MHz, CDCl3) δ 6.44 (s, 1H) , 4.58 -4.52 (m, 1H) , 4.44 (brs, 2H) , 1.42 (d, J = 8.0 Hz 6H) .
Step 4. 3-amino-5-isopropoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
To a mixture of 3-amino-6-bromo-5-isopropoxypicolinonitrile (0.80 g, 3.12 mmol) and 1-methyl-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-benzo [d] imidazole (1.20 g, 4.68 mmol) in dioxane (8 mL) and H2O (1.6 mL) were added and K2CO3 (1.30 g, 9.37 mmol) and Pd (dppf) Cl2*DCM (0.20 g, 0.31 mmol) . The resulting mixture was degassed and purged with N2 for 3 times and stirred at 110 ℃ for 2 hrs. After cooling to room temperature, the reaction was poured into H2O (10 mL) , and extracted with EtOAc (25 mL*3) . The combined organic layers were washed with brine (40 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford 23-4 (0.48 g, 1.47 mmol, 47.2%yield) as a black solid. LC-MS (ESI+) : m/z 308.3 [M+H] +. 1H NMR: (400 MHz, DMSO-d6) δ 8.10 (s, 1H) , 7.54 (d, J = 8.0, Hz, 1H) , 7.28 (t, J = 8.0 Hz, 1H) , 7.14 (d, J = 8.0 Hz, 1H) , 6.86 (s, 1H) , 6.21 (s, 2H) , 4.65 -4.37 (m, 1H) , 3.85 (s, 3H) , 1.14 (d, J = 4.0 Hz, 6H) .
Step 5. 5-isopropoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a solution of 3-amino-5-isopropoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (0.10 g, 0.32 mmol) and 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.077 g, 0.32 mmol) in DMF (2 mL) were added Cs2CO3 (0.32 g, 0.97 mmol) and BrettPhos Pd G3 (0, 030 g, 0.03 mmol) . The resulting mixture was purged with N2 for 2 mins and stirred at 130 ℃for 2 hrs under N2 atmosphere. After cooling to room temperature, the mixture was poured into water (10 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 20: 1, v/v) to afford 23-5 (0.16 g, 0.31 mmol, 94.9%yield) as a brown solid. LC-MS (ESI+) : m/z 510.4 [M+H] +.
Step 6. 5-isopropoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of 5-isopropoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile (0.14 g, 0.27
mmol) in DMSO (1.5 mL) were added K2CO3 (0.11 g, 0.82 mmol) and hydrogen peroxide (0.3 mL, 2.74 mmol, 30%purity) . After addition, the resulting mixture was stirred at 25 ℃ for 30 mins. Then the reaction mixture was poured into 10 mL of water and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 20: 1, v/v) and further purified by pre-HPLC (column: YMC, C18 (250*20 mm, 5 μm) ; mobile phase: [water (0.1%NH4HCO3) -ACN] ; B%: 30%-60%ACN, retention time: 25min of 30min) to afford compound 23 (2.5 mg, 0.005 mmol, 1.7%yield) . LC-MS (ESI+) : m/z 528.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ11.70 (s, 1H) , 9.06 (s, 1H) , 8.17 (s, 1H) , 8.11 -8.01 (m, 2H) , 7.65 (d, J = 4.0 Hz, 1H) , 7.57 (dd, J = 8.0, 4.0 Hz, 1H) , 7.49 (dd, J = 8.0, 4.0 Hz, 1H) , 7.32 (t, J = 8.0 Hz, 1H) , 6.76 (d, J = 8.0 Hz, 1H) , 4.67 -4.59 (m, 1H) , 3.90 (s, 2H) , 3.87 (s, 3H) , 3.86 -3.67 (m, 4H) , 2.43 (s, 3H) , 2.01 -1.90 (m, 2H) , 1.47 (d, J =16.0 Hz, 2H) , 1.30 (d, J = 8.0 Hz, 6H) .
Preparation of Example 24
Step 1. 2-bromo-5-ethoxypyridin-3-amine
To a solution of 2-bromo-5-fluoropyridin-3-amine (3.00 g, 15.71 mmol) in EtOH (30 mL) was added sodium ethanolate (3.20 g, 47.12 mmol) . After addition, the mixture was stirred at 120 ℃ for 30 hrs. The reaction was poured into H2O (60 ml) , and extracted with EtOAc (50 mL*3) , the combined organic layers were washed with brine (80 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 20%) in petroleum ether to afford 24-1 (2.00 g, 9.21 mmol, 58.7%yield) as an orange solid. LC-MS (ESI+) : m/z 217.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.32 (d, J = 4.0 Hz, 1H) , 6.70 (d, J = 4.0 Hz, 1H) , 5.47 (s, 2H) , 3.99 (q, J = 8.0 Hz, 2H) , 1.31 (t, J = 8.0 Hz, 3H) .
Step 2. 3-amino-5-ethoxypicolinonitrile
To a mixture of 2-bromo-5-ethoxypyridin-3-amine (2.60 g, 11.98 mmol) and Zn (CN) 2 (1.41 g, 11.98 mmol) in DMF (52 mL) were added Zn powder (0.078 g, 1.20 mmol) and BrettPhos Pd G3 (0.71 g, 0.78 mmol) . After addition, the resulting mixture was purged with N2 for 3 mins and then stirred at 100 ℃ under N2 atmosphere for 1 hr. After cooling to room temperature, the reaction was poured into
300 mL of water and extracted with EtOAc (200 mL*4) . The combined organic layers were washed with brine (200 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford 24-2 (1.00 g, 6.13 mmol, 51.2%yield) as a yellow solid. LC-MS (ESI+) : m/z 164.3 [M+H] +. 1H NMR: (400 MHz, DMSO-d6) δ 7.57 (d, J = 4.0 Hz, 1H) , 6.67 (d, J = 4.0 Hz, 1H) , 6.23 (s, 2H) , 4.04 (q, J = 8.0 Hz, 2H) , 1.33 (t, J = 8.0 Hz, 3H) .
Step 3. 3-amino-6-bromo-5-ethoxypicolinonitrile
To a solution of 3-amino-5-ethoxypicolinonitrile (0.95 g, 5.82 mmol) in CH3CN (20 mL) was added NBS (1.24 g, 6.99 mmol) in portions. The resulting mixture was stirred at 20 ℃ for 1 hr, then poured into 20 mL of water and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 70%) in petroleum ether to afford 24-3 (1.70 g, 5.62 mmol, 96.5%yield) as a brown solid. LC-MS (ESI+) : m/z 242.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 6.75 (s, 1H) , 6.46 (br s, 2H) , 4.08 (q, J = 8.0 Hz, 2H) , 1.36 (t, J = 8.0 Hz, 3H) .
Step 4.3-amino-5-ethoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
To a solution of 3-amino-6-bromo-5-ethoxypicolinonitrile (0.80 g, 3.30 mmol) and 1-methyl-4-(4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-benzo [d] imidazole (1.28 g, 4.96 mmol) in dioxane (15 mL) and H2O (3 mL) were added Pd (dppf) Cl2. CH2Cl2 (202.4 mg, 0.25 mmol) and K2CO3 (913.3 mg, 6.61 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 110 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction was poured into 50 mL of water and extracted with DCM (50 mL*4) . The combined organic layers were washed with brine (50 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford 24-4 (0.38 g, 1.28 mmol, 38.7%yield) as a yellow solid. LC-MS (ESI+) : m/z 294.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.11 (s, 1H) , 7.55 (d, J = 8.0 Hz, 1H) , 7.28 (t, J = 8.0 Hz, 1H) , 7.16 (d, J = 8.0 Hz, 1H) , 6.83 (s, 1H) , 6.26 (s, 2H) , 3.99 (q, J = 8.0 Hz, 2H) , 3.85 (s, 3H) , 1.11 (t, J = 8.0 Hz, 3H) .
Step 5. 5-ethoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a mixture of 3-amino-5-ethoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (0.20 g, 0.68 mmol) and 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.16 g, 0.68 mmol) in dioxane (6 mL) were added BrettPhos Pd G3 (0.062 g, 0.07 mmol) and K2CO3 (0.28 g, 2.05 mmol) . The resulting mixture was purged with N2 for 10 mins and stirred at 130 ℃ under N2 atmosphere for 2 hrs. After cooling to room temperature, the mixture was poured into H2O (20 mL) and then extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 15: 1, v/v) to afford 24-5 (0.15 g, 0.31 mmol, 44.7%yield) as a yellow solid. LC-MS (ESI+) : m/z 496.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.46 (s, 1H) , 8.15 (s, 1H) , 8.11 (s, 1H) ,
8.08 (d, J = 8.0 Hz, 1H) , 7.62 (d, J = 8.0 Hz, 1H) , 7.34 (t, J = 8.0 Hz, 1H) , 7.25 (d, J = 8.0 Hz, 1H) , 6.98 (d, J = 8.0.0 Hz, 1H) , 4.10 -4.04 (m, 2H) , 3.87 (s, 3H) , 3.84 -3.78 (m, 2H) , 3.09 -3.03 (m, 4H) , 2.43 (s, 3H) , 2.00 -1.92 (m, 2H) , 1.49 -1.42 (m, 2H) , 1.24 -1.19 (m, 3H) .
Step 6. 5-ethoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of 5-ethoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile (0.15 g, 0.31 mmol) in DMSO (2.5 mL) were added K2CO3 (0.13 g, 0.91 mmol) and hydrogen peroxide (0.47 mL, 6.09 mmol, 30%purity) . After addition, the mixture was stirred at 20 ℃ for 1.5 hrs. Then added K2CO3 (126.3 mg, 0.91 mmol) and hydrogen peroxide (0.24 mL, 3.05 mmol, 30%purity) and the mixture was continued stirred at 20 ℃ for 0.5 hrs. Then the mixture was poured into H2O (15 mL) and extracted with EtOAc (15 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 10: 1, v/v) and further purified by prep-HPLC (SHIMADZU LC-20AP, Column: Welch XB-C18, 20*250mm, 10μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 20ml/min; gradient: 30-55%; Retention Time: 21min of 25min) to afford compound 24 (30.0 mg, 0.06 mmol, 19.2%yield) . LC-MS (ESI+) : m/z 514.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.77 (s, 1H) , 9.01 (s, 1H) , 8.17 (s, 1H) , 8.11 -8.03 (m, 2H) , 7.67 (d, J = 4.0 Hz, 1H) , 7.59 (d, J = 8.0, Hz, 1H) , 7.49 (d, J = 8.0 Hz, 1H) , 7.34 (t, J = 8.0 Hz, 1H) , 6.78 (d, J = 8.0 Hz, 1H) , 4.15 (q, J = 8.0 Hz, 2H) , 3.93 (s, 2H) , 3.91 -3.77 (m, 7H) , 2.44 (s, 3H) , 2.02 -1.92 (m, 2H) , 1.48 (d, J = 12.0 Hz, 2H) , 1.28 (t, J = 8.0 Hz, 3H) .
Preparation of Example 25
Step 1. 3-amino-5-bromopicolinonitrile
To a solution of 5-bromo-3-nitropicolinonitrile (5.00 g, 21.93 mmol) in AcOH (50 mL) was added Fe (12.24 g, 219.30 mmol) . After addition, the mixture was stirred at 20 ℃ for 0.5 hr. The reaction solution was diluted with H2O (300 mL) , and adjusted pH to ~9 with solid Na2CO3. The filtrate was extracted with EtOAc (100 mL*4) . The combined organic layers were washed with brine (300 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by
column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford 25-1 (2.68 g, 13.54 mmol, 62%yield) as a yellow solid. LC-MS (ESI+) : m/z 197.8 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.94 (s, 1H) , 7.46 (s, 1H) , 6.58 (s, 2H) .
Step 2. 3-amino-5-vinylpicolinonitrile
To a solution of 3-amino-5-bromopicolinonitrile (1.35 g, 6.82 mmol) and potassium vinyltrifluoroborate (1.37 g, 10.23 mmol) in dioxane (20 mL) and H2O (2 mL) were added K2CO3 (2.83 g, 20.46 mmol) and Pd (dppf) Cl2. DCM (0.56 g, 0.68 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 80 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction was poured into 100 mL of water and extracted with EtOAc (40 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford 25-2 (0.70 g, 4.82 mmol, 71%yield) as a yellow solid. LC-MS (ESI+) : m/z 145.9 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.04 (s, 1H) , 7.22 (s, 1H) , 6.70. (dd, J = 16.0, 12.0 Hz, 1H) , 6.28 (s, 2H) , 5.97 (d, J = 12.0 Hz, 1H) , 5.50 (d, J = 12.0 Hz, 1H) .
Step 3. 3-amino-5-ethylpicolinonitrile
To a solution of 3-amino-5-vinylpicolinonitrile (0.65 g, 4.48 mmol) in MeOH (20 mL) was added Pd/C (0.07 g, 0.61 mmol, 55%purity, 10%w/w) and AcOH (0.03 mL, 0.45 mmol) . After addition, the resulting mixture was degassed and purged with H2 for 3 times and stirred at 20 ℃ under H2 (1 atm) for 6 hrs. After completion, the reaction was filtered, and the cake was washed with MeOH (20 mL*2) , the filtrate was concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford 25-3 (0.32 g, 2.17 mmol, 49%yield) as a yellow solid. LC-MS (ESI+) : m/z 148.0 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.77 (s, 1H) , 7.03 (s, 1H) , 6.18 (s, 2H) , 2.54 (q, J = 8.0 Hz 2H) , 1.15 (t, J = 8.0 Hz, 3H) .
Step 4. 3-amino-6-bromo-5-ethylpicolinonitrile
To a solution of 3-amino-5-ethylpicolinonitrile (0.30 g, 2.04 mmol) in CH3CN (5 mL) was added NBS (0.44 g, 2.45 mmol) in portions. After addition, the resulting mixture was stirred at 20 ℃ for 0.5 hrs. Then, the reaction was poured into 20 mL of water and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford 25-4 (0.31 g, 1.37 mmol, 67%yield) as a brown solid. LC-MS (ESI+) : m/z 225.8 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.15 (s, 1H) , 6.49 (s, 2H) , 2.57 (q, J = 8.0 Hz, 2H) , 1.15 (t, J = 8.0 Hz, 3H) .
Step 5. 3-amino-5-ethyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
To a solution of 3-amino-6-bromo-5-ethylpicolinonitrile (0.30 g, 1.33 mmol) and 1-methyl-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-benzo [d] imidazole (0.62 g, 2.39 mmol) in dioxane (8 mL) and H2O (1.6 mL) were added Pd (dppf) Cl2*DCM (0.11 g, 0.13 mmol) and K2CO3 (0.55 g, 3.98 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 110 ℃ under N2 for 2 hrs. Then, the reaction was poured into 30 mL of water and extracted with EtOAc
(10 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with MeOH (from 0%to 7%) in DCM to afford 25-5 (0.18 g, 0.65 mmol, 49%yield) as a brown solid. LC-MS (ESI+) : m/z 277.9 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.16 (s, 1H) , 7.61 (d, J = 8.0 Hz, 1H) , 7.33 (t, J = 8.0 Hz, 1H) , 7.17 (s, 1H) , 7.13 (d, J = 8.0 Hz, 1H) , 6.24 (s, 2H) , 3.87 (s, 3H) , 2.44 (q, J = 8.0 Hz, 2H) , 0.89 (t, J = 8.0 Hz, 3H) .
Step 6. 5-ethyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a solution of 3-amino-5-ethyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (0.10 g, 0.43 mmol) and 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.10 g, 0.43 mmol) in dioxane (4 mL) were added BrettPhos Pd G3 (0.039 g, 0.043 mmol) and Cs2CO3 (0.35 g, 1.08 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 130 ℃ under N2 for 2 hrs. Then the reaction was poured into 5 mL of water and extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with MeOH (from 0%to 7%) in DCM to afford 25-6 (80.0 mg, 0.17 mmol, 46%yield) as a brown solid. LC-MS (ESI+) : m/z 480.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.42 (s, 1H) , 8.26 (s, 1H) , 8.20 (s, 1H) , 8.06 (d, J = 8.0 Hz, 1H) , 7.67 (d, J = 8.0 Hz, 1H) , 7.39 (t, J = 8.0 Hz, 1H) , 7.23 (d, J = 8.0 Hz, 1H) , 6.90 (d, J = 8.0 Hz, 1H) , 3.93 -3.75 (m, 9H) , 2.58 -2.51 (m, 2H) , 2.40 (s, 3H) , 2.00 -1.88 (m, 2H) , 1.44 (d, J = 16.0 Hz, 2H) , 0.94 (t, J = 8.0 Hz, 3H) .
Step 7. 5-ethyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of 5-ethyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile (70.0 mg, 0.15 mmol) in DMSO (1.4 mL) were added K2CO3 (121.1 mg, 0.87 mmol) and hydrogen peroxide (331.0 mg, 2.92 mmol, 30%purity) . After addition, the mixture was stirred at 40 ℃ for 1 hr. Then, additional K2CO3 (121.1 mg, 0.87 mmol) and hydrogen peroxide (331.0 mg, 2.92 mmol, 30%purity) was added. After addition, the resulting mixture was stirred at 40 ℃ for 1 hr. After cooling to room temperature, the reaction was poured into 15 mL of water and extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (15 mL) , filtered, and concentrated to give a residue, which was purified by prep-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15ml/min; gradient: 20-60%; Retention Time: 35min of 40min) to afford compound 25 (26.0 mg, 0.050 mmol, 30.2%yield) . LC-MS (ESI+) : m/z 498.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.60 (s, 1H) , 9.08 (s, 1H) , 8.18 (s, 1H) , 8.05 (d J = 8.0 Hz, 1H) 8.10 (s, 1H) , 7.74 (s, 1H) , 7.63 (d, J = 8.0 Hz, 1H) , 7.38 (t, J = 8.0 Hz, 1H) , 7.28 (d, J = 8.0, 1H) , 6.78 (d, J = 8.0 Hz, 1H) , 3.92 -3.77 (m, 9H) , 2.58 (q, J = 8.0 Hz, 2H) , 2.43 (s, 3H) , 2.07 (s, 1H) , 2.00-1.92 (m, 2H) , 1.47 (d, J = 12.0 Hz, 2H) , 0.99 (t, J = 8.0 Hz, 3H) .
Preparation of Example 26
Step 1. 3-amino-5- (prop-1-en-2-yl) picolinonitrile
To a solution of 3-amino-5-bromopicolinonitrile (1.35 g, 6.82 mmol) and 4, 4, 5, 5-tetramethyl-2- (prop-1-en-2-yl) -1, 3, 2-dioxaborolane (1.72 g, 10.23 mmol) in dioxane (20 mL) and H2O (2 mL) were added K2CO3 (2.83 g, 20.46 mmol) and Pd (dppf) Cl2. DCM (0.56 g, 0.68 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 80 ℃ under N2 for 2 hrs. The reaction was poured into 50 mL of water and extracted with EtOAc (25 mL*5) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford 26-1 (0.90 g, 5.65 mmol, 83%yield) as a yellow solid. LC-MS (ESI+) : m/z 159.9 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.09 (d, J = 4.0 Hz, 1H) , 7.25 (d, J = 4.0 Hz, 1H) , 6.27 (s, 2H) , 5.57 (brs, 1H) , 5.30 (brs, 1H) , 2.07 (s, 3H) .
Step 2. 3-amino-5-isopropylpicolinonitrile
To a solution of 3-amino-5- (prop-1-en-2-yl) picolinonitrile (0.85 g, 5.85 mmol) in MeOH (25 mL) were added Pd/C (0.085 g, 0.80 mmol, 55%purity, 10%w/w) and AcOH (0.03 mL, 0.53 mmol) . After addition, the resulting mixture was degassed and purged with H2 for 3 times, and was stirred at 20 ℃ under H2 (1 atm) for 6 hrs. After completion, the reaction was filtered, and the cake was washed with MeOH (10 mL*3) , the filtrate was concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford 26-2 (0.50 g, 3.10 mmol, 58%yield) as a yellow solid. LC-MS (ESI+) : m/z 161.9 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.82 (d, J = 4.0 Hz, 1H) , 7.05 (d, J = 4.0 Hz, 1H) , 6.18 (s, 2H) , 2.89-2.82 (m, 1H) , 1.18 (d, J = 8 Hz, 6H) .
Step 3. 3-amino-6-bromo-5-isopropylpicolinonitrile
To a solution of 3-amino-5-isopropylpicolinonitrile (0.25 g, 1.70 mmol) in CH3CN (6 mL) was added NBS (0.40 g, 2.23 mmol) in portions, the resulting mixture was stirred at 20 ℃ for 0.5 hr, then the reaction was poured into 20 mL of water and extracted with EtOAc (10 mL*3) , the combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered and concentrated to give a residue,
which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford 26-3 (0.41 g, 1.71 mmol, 92%yield) as a brown solid. LC-MS (ESI+) : m/z 239.8 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.21 (s, 1H) , 6.48 (brs, 2H) , 3.08-3.01 (m, 1H) , 1.17 (d, J = 8.0 Hz, 6H) .
Step 4. 3-amino-5-isopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
To a solution of 3-amino-6-bromo-5-isopropylpicolinonitrile (0.40 g, 1.67 mmol) and 1-methyl-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-benzo [d] imidazole (0.77 g, 3.00 mmol) in dioxane (10 mL) and H2O (2 mL) were added Pd (dppf) Cl2. DCM (0.14 g, 0.17 mmol) and K2CO3 (0.69 g, 5.00 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 110 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction was poured into 50 mL of water and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (50 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford 26-4 (0.22 g, 0.76 mmol, 45.0%yield) as a brown solid. LC-MS (ESI+) : m/z 291.9 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.15 (s, 1H) , 7.60 (d, J = 8.0 Hz, 1H) , 7.33 (t, J = 8.0 Hz, 1H) , 7.26 (s, 1H) , 7.11 (d, J = 8.0 Hz, 1H) , 6.21 (s, 2H) , 3.87 (s, 3H) , 2.83 -2.69 (m, 1H) , 1.06 -0.74 (m, 6H) .
Step 5. 5-isopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a solution of 3-amino-5-isopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (0.10 g, 0.34 mmol) and 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (82.0 mg, 0.34 mmol) in DMF (2 mL) were added BrettPhos Pd G3 (62.0 mg, 0.07 mmol) and Cs2CO3 (0.34 g, 1.03 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 135 ℃ under N2 for 1 hr. After cooling to room temperature, the reaction was poured into 20 mL of water and extracted with EtOAc (10 mL*4) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by pre-TLC (DCM: MeOH = 15: 1, v/v) to afford 26-5 (60.0 mg, 0.12 mmol, 35%yield) as a brown solid. LC-MS (ESI+) : m/z 494.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.44 (s, 1H) , 8.35 (s, 1H) , 8.19 (s, 1H) , 8.07 (d, J = 8.0 Hz, 1H) , 7.67 (d, J = 8.0 Hz, 1H) , 7.39 (t, J = 8.0 Hz, 1H) , 7.21 (d, J =7.0 Hz, 1H) , 6.90 (d, J = 8.0 Hz, 1H) , 3.93 -3.78 (m, 9H) , 2.88 -2.80 (m, 1H) , 2.41 (s, 3H) , 2.02 -1.89 (m, 2H) , 1.44 (d, J = 12 Hz, 2H) , 1.08 -1.04 (m, 6H) .
Step 6. 5-isopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of 5-isopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile (0.10 g, 0.20 mmol) in DMSO (2 mL) were added K2CO3 (84.0 mg, 0.61 mmol) and hydrogen peroxide (0.23 mL, 4.03 mmol, 30%purity) . After addition, the reaction mixture was stirred at 40 ℃ for 1 hr. Then, to the reaction was added additional K2CO3 (84.0 mg, 0.61 mmol) and hydrogen peroxide (0.23 mL, 4.03 mmol, 30%purity) . After addition, the mixture was continued stirred at 40 ℃ for 1 hr. After completion,
the reaction was poured into 15 mL of water and the precipitate was filtered, the cake was washed with water (3 mL*2) , collected the solid and dried on vacuum to give a residue, which was purified by prep-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15ml/min; gradient: 40-55%; Retention Time: 15min of 20min) to afford compound 26 (18.0 mg, 0.04 mmol, 18%yield) . LC-MS (ESI+) : m/z 480.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.49 (s, 1H) , 9.19 (s, 1H) , 8.12 (s, 1H) , 8.00 (d, J = 8.0 Hz, 1H) , 7.88 (brs, 1H) , 7.60 (d, J = 8.0 Hz, 1H) , 7.51 (brs, 1H) , 7.37 (t, J = 8.0 Hz, 1H) , 7.24 (d, J = 8.0 Hz, 1H) , 6.75 (d, J = 8.0 Hz, 1H) , 3.91 -3.88 (m, 9H) , 2.97 -2.93 (m, 1H) , 2.45 (s, 3H) , 2.04 -1.93 (m, 2H) , 1.50 (d, J = 12.0 Hz, 2H) , 1.08 (d, J = 4.0 Hz, 6H) .
Preparation of Example 27
Step 1. 3-nitro-5- (trifluoromethyl) picolinonitrile
To a solution of 2-chloro-3-nitro-5- (trifluoromethyl) pyridine (4.00 g, 17.66 mmol) in toluene (40 mL) was added CuCN (4.70 g, 52.98 mmol) and TBAB (5.7 g, 17.660 mmol) . The mixture was stirred at 120 ℃ for 12 hrs. After cooling to room temperature, the reaction mixture was poured into water (80 mL) and extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 10%) in petroleum ether to afford 27-1 (1.10 g, 5.07 mmol, 28.7%yield) as a white solid. 1H NMR (400 MHz, DMSO-d6) δ 9.55 (s, 1H) , 9.24 (s, 1H) .
Step 2. 3-amino-5- (trifluoromethyl) picolinonitrile
To a solution of 3-nitro-5- (trifluoromethyl) picolinonitrile (1.10 g, 5.07 mmol) in acetic acid (10 mL) was added Fe powder (1.40 g, 25.33 mmol) . The resulting mixture was stirred at 20 ℃ for 1 hr. Then the reaction was poured into saturated Na2CO3 (80 mL) and extracted with DCM 100 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 20%) in petroleum ether to afford 27-2 (0.66 g, 3.53 mmol, 69.6%yield) as a white solid. LC-MS (ESI+) : m/z 188.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.18 (s, 1H) , 7.59 (d, J = 4.0 Hz, 1H) , 6.84 (s, 2H) .
Step 3. 3-amino-6-bromo-5- (trifluoromethyl) picolinonitrile
To a solution of 3-amino-5- (trifluoromethyl) picolinonitrile (0.66 g, 3.53 mmol) in CH3CN (10 mL) was added NBS (1.26 g, 7.06 mmol) in portions. The resulting mixture was stirred at 20 ℃ for 12 hrs. Then the reaction mixture was poured into water (50 mL) and extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (40 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 20%) in petroleum ether to afford 27-3 (0.53 g, 1.99 mmol, 56.5%yield) as a light-yellow solid. LC-MS (ESI+) : m/z 266.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.72 (s, 1H) , 7.08 (s, 2H) .
Step 4. 3-amino-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -5- (trifluoromethyl) picolinonitrile
To a mixture of 3-amino-6-bromo-5- (trifluoromethyl) picolinonitrile (0.70 g, 2.63 mmol) and 1-methyl-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-benzo [d] imidazole (1.70 g, 5.26 mmol) in dioxane (12 mL) and H2O (2.5 mL) were added Pd (dppf) Cl2 (0.19 g, 0.26 mmol) and Cs2CO3 (2.57 g, 7.89 mmol) . After addition, the mixture was degassed and purged with N2 for 3 times. The resulting mixture was stirred at 80 ℃ for 3 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into water (50 mL) and extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (80 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 10%) in dichloromethane to afford 27-4 (0.40 g, 1.26 mmol, 47.9%yield) as an orange solid. LC-MS (ESI+) : m/z 318.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.15 (s, 1H) , 7.76 (s, 1H) , 7.67 (d, J = 8.0 Hz, 1H) , 7.34 (t, J = 8.0 Hz, 1H) , 7.13 (d, J = 8.0 Hz, 1H) , 6.88 (s, 2H) , 3.90 (s, 3H) .
Step 5. 6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -5- (trifluoromethyl) picolinonitrile
To a mixture of 3-amino-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -5- (trifluoromethyl) picolinonitrile (0.20 g, 0.63 mmol) and 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.17 g, 0.72 mmol) in dioxane (6 mL) were added BrettPhos Pd G3 (0.057 g, 0.063 mmol) and K2CO3 (0.17 g, 1.26 mmol) . The resulting mixture was degassed and purged with N2 for 3 times and stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into water (20 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 15: 1, v/v) to afford 27-5 (0.16 g, 0.31 mmol, 48.9%yield) as a white solid. LC-MS (ESI+) : m/z 520.3 [M+H] +.
Step 6. 6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -5- (trifluoromethyl) picolinamide
To a solution of 6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -5- (trifluoromethyl) picolinonitrile (160 mg, 0.31 mmol) in DMSO (6 mL) were added K2CO3 (127.7 mg, 0.92 mmol) and hydrogen peroxide
(0.63 mL, 6.16 mmol, 30%purity) . After addition, the resulting mixture was stirred at 25 ℃ for 30 mins. Then the reaction mixture was poured into water (20 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified prep-TLC (SiO2, DCM: MeOH = 15: 1, v/v) and further purified by Prep-HPLC ( (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15ml/min; gradient: 30-55%; Retention Time: 17min of 25min) to afford compound 27 (25.0 mg, 0.05 mmol, 15.1%yield) . LC-MS (ESI+) : m/z 538.0 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.84 (s, 1H) , 9.75 (s, 1H) , 8.15 (s, 1H) , 8.11 (d, J =8.0 Hz, 1H) , 8.07 (d, J = 12.0 Hz, 2H) , 7.66 (d, J = 8.0 Hz, 1H) , 7.36 (t, J = 8.0 Hz, 1H) , 7.23 (d, J = 8.0 Hz, 1H) , 6.84 (d, J = 8.0 Hz, 1H) , 3.91 (s, 2H) , 3.88 (s, 3H) , 3.87 -3.76 (m, 4H) , 2.42 (s, 3H) , 2.02 -1.89 (m, 2H) , 1.48 (d, J = 12.0 Hz, 2H) .
Preparation of Example 28
Step 1. 3-amino-5-chloropicolinonitrile
To a solution of 5-chloro-3-nitropicolinonitrile (2.00 g, 10.89 mmol) in acetic acid (20 mL) was added Fe powder (3.00 g, 54.47 mmol) . The resulting mixture was stirred at 20 ℃ for 2 hrs, then the reaction mixture was poured into saturated Na2CO3 solution (200 mL) , then extracted with DCM (100 mL*4) . The combined organic layers were washed with brine (200 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 20%) in petroleum ether to afford 28-1 (0.89 g, 5.67 mmol, 51.8%yield) as a white solid. LC-MS (ESI+) : m/z 154.3 [M+H] +.
Step 2. 3-amino-6-bromo-5-chloropicolinonitrile
To a solution of 3-amino-5-chloropicolinonitrile (1.10 g, 7.16 mmol) in CH3CN (22 mL) was added NBS (1.50 g, 8.59 mmol) in portions. After addition, the resulting mixture was stirred at 20 ℃ for 12 hrs. The mixture was poured into water (40 mL) and extracted with EtOAc (40 mL*3) . The combined organic layers were washed with brine (40 mL) , dried over Na2SO4, filtered and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 100%) in petroleum ether to afford 28-2 (1.20 g, 5.11 mmol, 71.3%yield) as a green solid. LC-MS (ESI+) : m/z 232.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.46 (s, 1H) , 6.80 (s, 2H) .
Step 3. 3-amino-5-chloro-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
To a mixture of 3-amino-6-bromo-5-chloropicolinonitrile (1.15 g, 4.95 mmol) and 1-methyl-4-(4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-benzo [d] imidazole (2.60 g, 9.89 mmol) in dioxane (20 mL) and H2O (4 mL) were added Pd (dppf) Cl2 (0.40 g, 0.50 mmol) and Cs2CO3 (4.80 g, 14.84 mmol) . After addition, the resulting mixture was degassed and purged with N2 for 3 times and stirred at 80 ℃ for 3 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into water (100 mL) and extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford 28-3 (0.51 g, 1.76 mmol, 35.6%yield) as a brown solid. LC-MS (ESI+) : m/z 284.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.17 (s, 1H) , 7.64 (d, J = 8.0 Hz, 1H) , 7.44 (s, 1H) , 7.33 (t, J = 8.0 Hz, 1H) , 7.18 (d, J = 8.0 Hz, 1H) , 6.62 (s, 2H) , 3.87 (s, 3H) .
Step 4. 5-chloro-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a mixture of 3-amino-5-chloro-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (0.29 g, 1.02 mmol) and 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.29 g, 1.22 mmol) in dioxane (5.8 mL) were added Pd2 (dba) 3 (0.093 g, 0.10 mmol) , CyPF-tBu (0.12 g, 0.20 mmol) and Cs2CO3 (0.66 g, 2.04 mmol) . After addition, the resulting mixture was purged with N2 for 10 mins, and then the mixture was stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the mixture was poured into water (20 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (40 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 12: 1, v/v) to afford 28-4 (0.13 g, 0.27 mmol, 26.7%yield) as a brown solid. LC-MS (ESI+) : m/z 486.0 [M+H] +.
Step 5. 5-chloro-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of 5-chloro-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile (0.13 g, 0.27 mmol) in DMSO (3 mL) were added K2CO3 (0.11 g, 0.82 mmol) and hydrogen peroxide (0.3 mL, 2.72 mmol, 30%purity) . After addition, the resulting mixture was stirred at 20 ℃ for 30 mins. Then the mixture was poured into water (20 mL) and extracted with EtOAc (20 mL*4) . The combined organic layers were washed with brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by Prep-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15ml/min; gradient: 40-60%; Retention Time: 12min of 20min) to afford compound 28 (30.0 mg, 0.06 mmol, 21.5%) . LC-MS (ESI+) : m/z 504.0 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.79 (s, 1H) , 9.39 (s, 1H) , 8.20 (s, 1H) , 8.15 -8.03 (m, 2H) , 7.95 (d, J = 4.0 Hz, 1H) , 7.67 (dd, J = 8.0, 4.0 Hz, 1H) , 7.44 -7.31 (m, 2H) , 6.81 (d, J = 8.0 Hz, 1H) , 3.93 (s, 2H) , 3.89 (s, 3H) , 3.88 -3.73 (m, 4H) , 2.42 (s, 3H) , 2.00 -1.90 (m, 2H) , 1.48 (d, J = 12.0 Hz, 2H) .
Preparation of Example 29
Step 1. 2'-chloro-1, 6'-dimethyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2'-chloro-6'-methyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] (0.60 g, 1.26 mmol) in MeOH (9 mL) were added paraformaldehyde (0.34 g, 3.79 mmol) and sodium cyanoborohydride (0.24 g, 3.79 mmol) in portions. After addition, the resulting mixture was stirred at 40 ℃ for 3 hrs. After cooling to room temperature, the reaction was poured into H2O (30 ml) , and extracted with DCM (20 mL*3) , the combined organic layers were washed with brine (15 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH=10: 1, v/v) to afford 29-1 (58.0 mg, 0.23 mmol, 18.3%yield) as a yellow solid. LC-MS (ESI+) : m/z 252.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.07 (d, J = 8.0 Hz, 1H) , 7.32 (d, J = 8.0 Hz, 1H) , 3.88 (s, 2H) , 2.72 -2.67 (m, 2H) , 2.45 -2.39 (m, 2H) , 2.38 (s, 3H) , 2.28 (s, 3H) , 1.95 (td, d, J = 12.0, 4.0 Hz, 2H) , 1.48 (d, J = 12.0, 2H) .
Step 2. tert-butyl 7- ( (1, 6'-dimethyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
To a mixture of 2'-chloro-1, 6'-dimethyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] (50.0 mg, 0.20 mmol) and tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (75.9 mg, 0.20 mmol) in dioxane (1.5 mL) were added BrettPhos Pd G3 (0.5 mg, 0.01 mmol) and Cs2CO3 (129.4 mg, 0.40 mmol) . After addition, the resulting mixture was purged with N2 for 10 mins and then the mixture was stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction was poured into water (8 mL) and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH=10: 1, v/v) to afford 29-2 (58.0 mg, 0.10 mmol, 48.9%yield) as a yellow solid. LC-MS (ESI+) : m/z 598.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.88 (s, 1H) , 8.75 (d, J = 8.0 Hz, 1H) , 8.42 (dd, J = 8.0, 4.0 Hz, 1H) , 8.06 (br s, 1H) , 7.86 -7.82 (m, 2H) , 7.55 (dd, J = 8.0, 4.0 Hz, 1H) , 7.03 -6.97 (m, 2H) , 4.77 (s, 2H) , 3.93 (s, 2H) , 3.11 -2.89 (m, 2H) , 2.66 -2.53 (m, 2H) , 2.50 (s, 3H) , 2.43 (s, 3H) , 2.18 -2.03 (s, 2H) , 1.67 -1.55 (m, 2H) , 1.53 (s, 9H) .
Step 3. 7- ( (1, 6'-dimethyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) isoindolin-1-one
To a solution of tert-butyl 7- ( (1, 6'-dimethyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (50.0 mg, 0.08 mmol) in DCM (3 mL) was added TFA (1 mL) dropwise at 0 ℃. After addition, the resulting mixture was stirred at 20 ℃ for 0.5 hr. Then, the reaction mixture was diluted with DCM (20 mL) and washed with saturated aq. NaHCO3 (40 mL) , followed by brine (20 mL) , dried over Na2SO4, filtered and concentrated to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH=10: 1, v/v) and further purified by Prep-HPLC (SHIMADZU LC-20AP, Column: Welch XB-C18, 20*250mm, 10μm; Mobile Phase A: 0.1%NH4HCO3, B: CAN; flow rate: 20ml/min; gradient: 40-50%; Retention Time: 8min of 10min) to afford compound 29 (13.0 mg, 0.03 mmol, 31.2%yield) . LC-MS (ESI+) : m/z 498.4 [M+H] +. 1H NMR: (400 MHz, DMSO-d6) δ 10.13 (s, 1H) , 8.85 (s, 1H) , 8.66 (d, J = 8.0 Hz, 1H) , 8.46 (dd, J = 8.0, 4.0 Hz, 1H) , 7.95 (d, J = 8.0 Hz, 1H) , 7.84 (s, 1H) , 7.75 (d, J = 8.0 Hz, 1H) , 7.53 (dd, J = 12.0, 4.0 Hz, 1H) , 6.98 (td, J = 8.0, 4.0 Hz, 1H) , 6.82 (d, J = 8.0 Hz, 1H) , 4.41 (s, 2H) , 3.90 (s, 2H) , 2.74 -2.68 (m, 2H) , 2.49 -2.43 (m, 2H) , 2.41 (s, 3H) , 2.30 (s, 3H) , 2.00 -1.93 (m, 2H) , 1.49 (d, J = 12.0 Hz, 2H) .
Preparation of Example 30
Step 1. 1- (2'-chloro-6'-methyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -1-yl) ethan-1-one
To a solution of 2'-chloro-6'-methyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] (0.60 g, 0.76 mmol, 30%purity) in DCM (10 mL) were added acetyl chloride (0.06 mL, 0.91 mmol) and DIEA (0.25 mL, 1.52 mmol) at 0 ℃. After addition, the mixture was stirred at 20 ℃ for 0.5 hr. The reaction was quenched by 5 mL of water and extracted with DCM (10 mL*4) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 20: 1, v/v) to afford int 30-1 (0.12 g, 0.42 mmol, 55.7%yield) as a yellow oil. LC-MS (ESI+) : m/z 280.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.11 (d, J = 8.0 Hz, 1H) , 7.32 (d, J = 8.0 Hz, 1H) , 4.20 -4.08 (m, 1H) , 3.90 (s, 2H) , 3.81 -3.69 (m, 1H) , 3.55 -3.42 (m, 1H) , 3.18 -3.10 (m, 1H) , 2.37 (s, 3H) , 2.05 (s, 3H) , 1.97 -1.85 (m, 2H) , 1.60 -1.48 (m, 2H) .
Step 2. Tert-butyl 7- ( (1-acetyl-6'-methyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
To a solution of 1- (2'-chloro-6'-methyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -1-yl) ethan-1-one (0.11 g, 0.39 mmol) and tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (0.13 g, 0.33 mmol) in dioxane (3 mL) were added
Cs2CO3 (0.26 g, 0.79 mmol) and BrettPhos Pd G3 (0.030 g, 0.033 mmol) . After addition, the mixture was degassed and purged with N2 for three times and stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the mixture was poured into H2O (5 mL) and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with MeOH (from 0%to 5%) in dichloromethane to afford int 30-2 (80.0 mg, 0.13 mmol, 32.5%yield) as a yellow solid. LC-MS (ESI+) : m/z 626.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.89 (s, 1H) , 8.76 (d, J = 8.0 Hz, 1H) , 8.44 (dd, J = 8.0, 4.0 Hz, 1H) , 8.04 (d, J = 8.0 Hz, 1H) , 7.91 -7.80 (m, 2H) , 7.57 (dd, J = 12.0, 4.0 Hz, 1H) , 7.07 -6.92 (m, 2H) , 4.79 (s, 2H) , 4.28 -4.17 (m, 1H) , 3.95 (s, 2H) , 3.89 -3.78 (m, 1H) , 3.55 (t, J = 12.0 Hz, 1H) , 3.23 -3.12 (m, 1H) , 2.43 (s, 3H) , 2.10 -2.07 (m, 3H) , 1.99 -1.89 (m, 1H) , 1.87 -1.74 (m, 1H) , 1.65 -1.56 (m, 2H) , 1.54 (s, 9H) .
Step 3. 7- ( (1-acetyl-6'-methyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) isoindolin-1-one
To a solution of tert-butyl 7- ( (1-acetyl-6'-methyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (80.0 mg, 0.13 mmol) in DCM (3 mL) was added TFA (1 mL, 13.06 mmol) . After addition, the mixture was stirred at 20 ℃ for 0.5 hr. After completion, the reaction was diluted with DCM (20 mL) and adjusted pH to ~8 with saturated aq. Na2CO3 solution (10 mL) , extracted with DCM (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with MeOH (from 0%to 5%) in dichloromethane and further purified by pre-HPLC (column: YMC, C18 (250*20 mm, 5 μm) ; mobile phase: [water (0.1%NH4HCO3) -ACN] ; B%: 25%-45%ACN, retention time: 18min of 20min) to afford compound 30 (22.0 mg, 0.042 mmol, 32.7%yield) . LC-MS (ESI+) : m/z 526.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.15 (s, 1H) , 8.85 (s, 1H) , 8.65 (d, J = 8.0 Hz, 1H) , 8.45 (dd, J = 8.0, 4.0 Hz, 1H) , 7.98 (d, J = 8.0 Hz, 1H) , 7.83 (s, 1H) , 7.74 (d, J = 8.0 Hz, 1H) , 7.52 (dd, J = 12.0, 4.0 Hz, 1H) , 6.97 (td, J = 8.0, 4.0 Hz, 1H) , 6.82 (d, J = 12.0 Hz, 1H) , 4.40 (s, 2H) , 4.26 -4.16 (m, 1H) , 4.01 -3.87 (m, 2H) , 3.84 -3.76 (m, 1H) , 3.52 (t, J = 12.0 Hz, 1H) , 3.16 (t, J = 12.0 Hz, 1H) , 2.41 (s, 3H) , 2.06 (s, 3H) , 1.97 -1.87 (m, 1H) , 1.84 -1.73 (m, 1H) , 1.63 -1.48 (m, 2H) .
Preparation of Example 31
Step 1. 2'-chloro-6'-methyl-1- (oxetan-3-yl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2'-chloro-6'-methyl-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] (0.50 g, 1.05 mmol, crude) and oxetan-3-one (0.076 g, 1.05 mmol) in MeOH (10 mL) were added AcOH (1 drop) and sodium cyanoborohydride (0.066 g, 1.05 mmol) in portions. After being stirred at 40 ℃ for 3 hrs, additional amount of sodium cyanoborohydride (0.066 g, 1.05 mmol) and oxetan-3-one (0.076 g, 1.05 mmol) was added, and the mixture was continuing stirred at 40 ℃ for 1 hr. After cooling to room temperature, the reaction was quenched by H2O (50 mL) and extracted with DCM (50 mL*3) . The combined organic layers were washed with brine (20 ml) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 10: 1, v/v) to afford int 31-1 (48.0 mg, 0.16 mmol, 15.5%yield) as a yellow solid. LC-MS (ESI+) : m/z 294.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.09 (s, 1H) , 7.32 (d, J = 8.0 Hz, 1H) , 4.57 (s, 2H) , 4.53 -4.43 (m, 2H) , 4.02 -3.81 (m, 2H) , 3.74 -3.49 (m, 1H) , 2.76 -2.56 (m, 2H) , 2.41 (s, 3H) , 2.35 -2.21 (m, 2H) , 2.10 -1.82 (m, 2H) , 1.65 -1.46 (m, 2H) .
Step 2. tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'-methyl-1- (oxetan-3-yl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate
To a mixture of 2'-chloro-6'-methyl-1- (oxetan-3-yl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] (48.0 mg, 0.16 mmol) and tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (62.5 mg, 0.16 mmol) in dioxane (1.8 mL) were added BrettPhos Pd G3 (14.8 mg, 0.02 mmol) and Cs2CO3 (0.11 g, 0.33 mmol) . After addition, the resulting mixture was purged with N2 for 10 mins and stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction was poured into H2O (8 ml) and extracted with DCM (10 mL*3) . The combined organic layers were washed with brine (20 ml) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 10: 1, v/v) to afford int 31-2 (51.0 mg, 0.08 mmol, 48.8%yield) as a yellow solid. LC-MS (ESI+) : m/z 640.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.84 (s, 1H) , 8.73 (d, J = 8.0 Hz, 1H) , 8.41 (t, J = 8.0 Hz, 1H) , 7.98 (d, J = 8.0 Hz, 1H) , 7.85 -7.80 (m, 2H) , 7.55 (d, J = 8.0 Hz, 1H) , 6.99 (t, J = 8.0 Hz, 1H) , 6.93 (d, J = 8.0 Hz, 1H) , 4.76 (s, 2H) , 4.57 (t, J = 8.0 Hz, 2H) , 4.47 (t, J = 8.0 Hz, 2H) , 3.91 (s, 2H) , 3.60 (t, J = 8.0 Hz, 1H) , 3.01 -2.88 (m, 2H) , 2.69 -2.60 (m, 2H) , 2.42 (s, 3H) , 2.33 (t, J = 8.0 Hz, 2H) , 2.01 -1.89 (m, 2H) , 1.52 (s, 9H) .
Step 3. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'-methyl-1- (oxetan-3-yl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'-methyl-1- (oxetan-3-yl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate (48.0 mg, 0.08 mmol) in DCM (3 mL) was added TFA (0.6 mL) dropwise. After addition, the reaction mixture was stirred at 20 ℃ for 0.5 hr, then the reaction was diluted with DCM (20 mL) and washed with saturated NaHCO3 (aq, 20 mL) , followed by brine (10 mL) , dried over Na2SO4, filtered and concentrated to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 10: 1, v/v) and further purified by Prep-HPLC (SHIMADZU LC-20AP, Column: Welch XB-C18, 20*250mm, 10μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 20ml/min; gradient: 10-45%; Retention Time: 33min of 35min) to afford compound 31 (8.0 mg, 0.02 mmol, 19.8%yield) . LC-MS (ESI+) : m/z 540.4 [M+H] +. 1H NMR
(400 MHz, DMSO-d6) δ 10.13 (s, 1H) , 8.85 (s, 1H) , 8.66 (d, J = 8.0 Hz, 1H) , 8.46 (t, J = 8.0 Hz, 1H) , 7.96 (d, J = 8.0 Hz, 1H) , 7.84 (s, 1H) , 7.75 (d, J = 8.0 Hz, 1H) , 7.53 (dd, J = 8.0, 4.0 Hz, 1H) , 6.98 (td, J = 8.0, 4.0 Hz, 1H) , 6.81 (d, J = 8.0 Hz, 1H) , 4.58 (t, J = 8.0 Hz, 2H) , 4.48 (t, J = 8.0 Hz, 2H) , 4.41 (s, 2H) , 3.91 (s, 2H) , 3.64 -3.57 (m, 1H) , 2.70 -2.62 (m, 2H) , 2.43 (s, 3H) , 2.34 (t, J = 8.0 Hz, 2H) , 1.96 (td, J = 12.0, 4.0 Hz, 2H) , 1.53 (d, J = 16.0 Hz, 2H) .
Preparation of Example 32
Step 1. tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6-methyl-6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -2-yl) amino) -1-oxoisoindoline-2-carboxylate
A mixture of 2-chloro-6-methyl-6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolane] (40.0 mg, 0.14 mmol) , tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (62.0 mg, 0.16 mmol) , BrettPhos Pd G3 (25.0 mg, 0.03 mmol) , Cs2CO3 (89.0 mg, 0.27 mmol) in dioxane (1.2 mL) was purged with N2 for 3 mins. Then, the mixture was stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into water (10 mL) and extracted with EtOAc (15 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 32-1 (31.0 mg, 0.04 mmol, 31.0%yield) as a yellow solid. LC-MS (ESI+) : m/z 641.2 [M+H] +.
Step 2. 2'- ( (7- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -3-oxoisoindolin-4-yl) amino) -6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -4-one
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6-methyl-6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -2-yl) amino) -1-oxoisoindoline-2-carboxylate (57.0 mg, 0.09 mmol) in DCM (6 mL) and TFA (2 mL) was added p-toluenesulfonic acid monohydrate (25 mg, 0.13 mmol) . The resulting mixture was stirred at 30 ℃ for 16 hrs. The mixture was concentrated to give a residue and diluted with EtOAc (20 mL) and adjusted pH to ~ 8 with NaHCO3 powder, separated and the aqueous phase was extracted with EtOAc (15 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4 filtered and concentrated to afford int 32-2 (15.0 mg, 0.01 mmol, 77.4%yield) as a yellow solid. LC-MS (ESI+) : m/z 497.3 [M+H] +.
Step 3. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (4-hydroxy-6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of 2'- ( (7- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -3-oxoisoindolin-4-yl) amino) -6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -4-one (45.0 mg, 0.07 mmol) in MeOH (2 mL) was added NaBH4 (7.0 mg, 0.18 mmol) . The reaction mixture was stirred at 25 ℃ for 6 hrs. The reaction was quenched by H2O (10 mL) and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by Prep-TLC (SiO2, DCM: MeOH = 10: 1, v/v) to afford compound 32 (3.8 mg, 0.01 mmol, 8.3%yield) . LC-MS (ESI+) : m/z 499.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.14 (s, 1H) , 8.86 (s, 1H) , 8.67 (d, J = 8.0 Hz, 1H) , 8.47 (d, J = 8.0 Hz, 1H) , 7.93 (d, J = 8.0 Hz, 1H) , 7.84 (s, 1H) , 7.75 (d, J = 8.0 Hz, 1H) , 7.54 -7.56 (m, 1H) , 6.98 (m, 1H) , 6.85 (d, J = 8.0 Hz, 1H) , 4.67 (s, 1H) , 4.41 (s, 2H) , 3.89 (s, 2H) , 3.54 (d, J = 8.0 Hz, 1H) , 2.40 (s, 3H) , 1.85 (d, J = 12.0 Hz, 2H) , 1.77 (m, 2H) , 1.64 -1.62 (m, 2H) , 1.48 -1.50 (m, 2H) .
Preparation of Example 33
Step 1. 2'-chloro-6'- (4-methoxybenzyl) spiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine] -4, 7' (6'H) -dione
To a solution of 2-chloro-6- (4-methoxybenzyl) dispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -7 (6H) -one (1.10 g, 2.65 mmol) in acetone (20 mL) was added TsOH (0.90 g, 5.30 mmol) . After addition, the reaction was degassed and purged with N2 for 3 times and stirred at 60 ℃ for 8 hrs under N2 atmosphere. After cooling to room temperature, the reaction was poured into 40 mL of water and adjusted pH to ~ 8 with NaHCO3 powder, then extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford int 33-1 (0.56 g, 0.79 mmol, 29.7%yield) as a white solid. LC-MS (ESI+) : m/z 371.3 [M+H] +.
Step 2. 2'-chlorospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine] -4, 7' (6'H) -dione
To a solution of 2'-chloro-6'- (4-methoxybenzyl) spiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine] -4, 7' (6'H) -dione (0.56 g, 1.52 mmol) in MeCN (18 mL) and H2O (6 mL) was added ceric ammonium nitrate (2.50 g, 4.55 mmol) in portions at 0 ℃. The resulting mixture was stirred at 25 ℃ for 1.5 hrs. The reaction was poured into H2O (30 mL) and adjusted to pH ~10 with Na2CO3, then extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 7%) in dichloromethane to afford int 33-2 (0.25 g, 0.53 mmol, 35.0%yield) as a white solid. LC-MS (ESI+) : m/z 251.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.05 (s, 1H) , 8.27 (d, J = 8.0 Hz, 1H) , 7.73 (d, J = 8.0 Hz, 1H) , 2.84 -2.71 (m, 2H) , 2.62 -2.53 (m, 2H) , 2.39 -2.77 (m, 2H) , 1.86 -1.69 (m, 2H) .
Step 3. 2'-chloro-4-hydroxyspiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
To a solution of 2'-chlorospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine] -4, 7' (6'H) -dione (0.22 g, 0.88 mmol) in MeOH (6 mL) was added NaBH4 (66.0 mg, 1.76 mmol) . After addition, then the mixture was stirred at 20 ℃ for 0.5 hr under N2. The reaction was concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 33-3 (185.0 mg, 0.73 mmol, 83.4%yield) as a yellow solid. LC-MS (ESI+) : m/z 253.3 [M+H] +.
Step 4. 4- ( (tert-butyldimethylsilyl) oxy) -2'-chlorospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
To a solution of 2'-chloro-4-hydroxyspiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one (185.0 mg, 0.73 mmol) and imidazole (100 mg, 1.46 mmol) in THF (2 mL) and DMF (1 mL) was added tert-butylchlorodimethylsilane (221.0 mg, 1.46 mmol) . The resulting mixture was stirred at 10 ℃ for 16 hrs under N2. The reaction was poured into H2O (5 mL) and extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (3 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford int 33-4 (200.0 mg, 0.55 mmol, 74.4%yield) as a white solid. LC-MS (ESI+) : m/z 367.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.56 (s, 1H) , 8.12 (d, J = 8.0 Hz, 1H) , 7.60 (d, J = 8.0 Hz, 1H) , 3.80 -3.63 (m, 1H) , 1.98 (td, J = 12.0, 4.0 Hz, 2H) , 1.80 -1.53 (m, 4H) , 1.36 (d, J = 12.0 Hz, 2H) , 0.81 (s, 9H) , 0.00 (s, 6H) .
Step 5. 4- ( (tert-butyldimethylsilyl) oxy) -2'-chloro-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 4- ( (tert-butyldimethylsilyl) oxy) -2'-chlorospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one (175 mg, 0.477 mmol) in THF (0.5 mL) was added BH3 (5 mL, 5.00 mmol, 1 M in THF) . The resulting mixture was stirred at 80 ℃ for 5 hrs. After cooling to room temperature, the reaction was quenched by MeOH (10 mL) dropwise and was stirred at 15 ℃ for 1 hr, then concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate
(from 0%to 100%) in petroleum ether to afford int 33-5 (105.0 mg, 0.30 mmol, 62.4%yield) as a white solid. LC-MS (ESI+) : m/z 353.2 [M+H] +.
Step 6. 4- ( (tert-butyldimethylsilyl) oxy) -2'-chloro-6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 4- ( (tert-butyldimethylsilyl) oxy) -2'-chloro-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine] (50.0 mg, 0.14 mmol) in MeOH (1 mL) were added paraformaldehyde (26.0 mg, 0.28 mmol) , NaBH3CN (17.8 mg, 0.28 mmol) and AcOH (20 μL, 0.28 mmol) . The resulting mixture was stirred at 30 ℃ for 16 hrs under N2. The reaction was filtered and the cake was washed with EtOAc (3 mL*3) . The filtrate was concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford int 33-6 (45.0 mg, 0.12 mmol, 86.6%yield) as a colorless oil. LC-MS (ESI+) : m/z 367.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.95 (d, J = 8.0 Hz, 1H) , 7.30 (d, J = 8.0 Hz, 1H) , 4.06 (br s, 1H) , 3.88 (s, 2H) , 2.39 (s, 3H) , 2.08 (td, J = 12.0, 4.0 Hz, 2H) , 1.82 (t, J = 12.0 Hz, 2H) , 1.72 -1.61 (m, 2H) , 1.36 -1.27 (m, 2H) , 0.92 (s, 9H) , 0.08 (s, 6H) .
Step 7. N- (3- (5- ( (4- ( (tert-butyldimethylsilyl) oxy) -6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -6-cyanopyridin-2-yl) cyclohexan-1-yl) benzamide
To a mixture of 2'-chloro-4- { [dimethyl (2-methylprop-2-yl) silyl] oxy} -6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [4, 3-b] pyridine] (40.0 mg, 0.11 mmol) and N- (3- (5-amino-6-cyanopyridin-2-yl) cyclohex-3-en-1-yl) benzamide (38.0 mg, 0.12 mmol) in dioxane (1.5 mL) were added Cs2CO3 (71.0 mg, 0.22 mmol) and BrettPhos Pd G3 (10.0 mg, 0.011 mmol) . After addition, then the mixture was stirred at 130 ℃ for 3 hrs under N2. After cooling to room temperature, the reaction was diluted with DCM (5 mL) and filtered, the filtrate was concentrated to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 15: 1, v/v) to afford int 33-7 (20.0 mg, 0.031 mmol, 28.3%yield) as a yellow solid. LC-MS (ESI+) : m/z 649.4 [M+H] +.
Step 8. N- (3- (6-cyano-5- ( (4-hydroxy-6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) pyridin-2-yl) cyclohexan-1-yl) benzamide
To a solution of N- (3- (5- ( (4- ( (tert-butyldimethylsilyl) oxy) -6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -6-cyanopyridin-2-yl) cyclohexan-1-yl) benzamide (30.0 mg, 0.046 mmol) in DCM (1 mL) was added TFA (0.2 mL, 2.612 mmol) dropwise. The resulting mixture was stirred at 15 ℃ for 6 hrs. The reaction was diluted with DCM (10 mL) and adjusted pH to ~8, separated and the aqueous phase was extracted with DCM (5 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 20: 1, v/v) to afford int 33-8 (10.0 mg, 0.019 mmol, 40.5%yield) as a yellow gum. LC-MS (ESI+) : m/z 535.4 [M+H] +.
Step 9. 6- (5-benzamidocyclohex-1-en-1-yl) -3- ( (4-hydroxy-6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of N- (3- (6-cyano-5- ( (4-hydroxy-6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) pyridin-2-yl) cyclohexan-1-yl) benzamide (10.0 mg, 0.019 mmol) in
DMSO (0.5 mL) was added K2CO3 (7.8 mg, 0.056 mmol) , followed by addition of hydrogen peroxide (0.02 mL, 0.19 mmol, 30%purity) dropwise. The resulting mixture was stirred at 15 ℃ for 0.5 hr. The reaction was poured into H2O (3 mL) and extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (3 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 10: 1, v/v) to afford compound 33 (2.0 mg, 0.004 mmol, 18.8%yield) . LC-MS (ESI+) : m/z 553.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.67 (s, 1H) , 9.08 (d, J = 8.0 Hz, 1H) , 8.39 (d, J = 8.0 Hz, 1H) , 8.25 (br s, 1H) , 7.95 -7.85 (m, 3H) , 7.80 -7.71 (m, 2H) , 7.57 -7.51 (m, 1H) , 7.51 -7.45 (m, 2H) , 6.76 -6.67 (m, 2H) , 4.47 (d, J = 4.0 Hz, 1H) , 4.17 (br s, 1H) , 3.86 (s, 2H) , 3.09 -2.96 (m, 2H) , 2.41 (s, 3H) , 2.09 -1.91 (m, 4H) , 1.86 -1.77 (m, 2H) , 1.74 -1.63 (m, 3H) , 1.33 -1.23 (m, 4H) .
Preparation of Example 34
Step 1. 2-amino-5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) benzonitrile
To a mixture of 2-amino-5-bromobenzonitrile (1.00 g, 5.07 mmol) and 4, 4, 4', 4', 5, 5, 5', 5'-octamethyl-2, 2'-bi (1, 3, 2-dioxaborolane) (1.50 g, 6.09 mmol) in dioxane (15 mL) were added Pd (dppf) Cl2 (0.40 g, 0.50 mmol) and KOAc (1.50 g, 15.22 mmol) . The resulting mixture was degassed and purged with N2 for 3 times, and then stirred at 110 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into water (30 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 20%) in petroleum ether to afford int 34-1 (0.93 g, 3.54 mmol, 69.7%yield) as a white solid. LC-MS (ESI+) : m/z 245.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.58 -7.57 (d, J = 4.0 Hz, 1H) , 7.53 -7.51 (m, 1H) , 6.76 -6.74 (d, J = 8.0 Hz, 1H) , 6.46 (s, 2H) , 1.25 (s, 12H) .
Step 2. 2-amino-5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) benzonitrile
To a solution of 2-amino-5- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) benzonitrile (0.30 g, 1.23 mmol) and 3-bromo-7-fluoroimidazo [1, 2-a] pyridine (0.32 g, 1.47 mmol) in dioxane (8 mL) and
H2O (1 mL) was added Pd (dppf) Cl2 (89.0 mg, 0.12 mmol) and K2CO3 (0.51 g, 3.68 mmol) . The resulting mixture was degassed and purged with N2 for 3 times, and then the mixture was stirred at 110 ℃ for 3 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into water (30 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 3%) in dichloromethane to afford int 34-2 (180.0 mg, 0.65 mmol, 53.4%yield) as a yellow solid. LC-MS (ESI+) : m/z 253.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.49 -8.46 (m, 1H) , 7.67 -7.66 (d, J = 4.0 Hz, 1H) , 7.62 (s, 1H) , 7.55 -7.53 (m, 1H) , 7.48 -7.45 (m, 1H) , 6.96 -6.93 (m, 2H) , 6.35 (s, 2H) .
Step 3. 5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) benzonitrile
To a mixture of 2-amino-5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) benzonitrile (180.0 mg, 0.71 mmol) , 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (204 mg, 0.85 mmol) in dioxane (3.5 mL) were added BrettPhos Pd G3 (129.0 mg, 0.14 mmol) and Cs2CO3 (464.0 mg, 1.42 mmol) . The resulting mixture was purged with N2 for 3 mins, and stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into water (20 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 15: 1, v/v) to afford int 34-3 (130.0 mg, 0.27 mmol, 38.9%yield) as a yellow solid. LC-MS (ESI+) : m/z 455.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.32 (s, 1H) , 8.67 -8.63 (m, 1H) , 8.04 -8.01 (m, 3H) , 7.86 -7.83 (m, 1H) , 7.79 (s, 1H) , 7.54 -7.51 (m, 1H) , 7.04 -6.99 (m, 1H) , 6.91 -6.89 (d, J = 8.0 Hz, 1H) , 3.89 -3.82 (m, 2H) , 3.80 -3.77 (m, 4H) , 2.39 (s, 3H) , 1.97 -1.90 (m, 2H) , 1.45 -1.42 (d, J = 12.0 Hz, 2H) .
Step 4. 5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) benzamide
To a solution of 5- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -2- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) benzonitrile (60.0 mg, 0.13 mmol) in DMSO (3 mL) was added K2CO3 (54.0 mg, 0.39 mmol) , followed by addition of hydrogen peroxide (0.06 mL, 1.32 mmol, 30%purity) dropwise. The resulting mixture was stirred at 25 ℃ for 0.5 hrs. The reaction mixture was quenched by saturated Na2SO3 aqueous (5 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 10: 1, v/v) and further purified by triturating with EtOAc (5 mL) at 25 ℃ for 10 mins to afford compound 34 (15.0 mg, 0.03 mmol, 23.6%yield) . LC-MS (ESI+) : m/z 473.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.18 (s, 1H) , 8.69 -8.64 (m, 2H) , 8.29 (s, 1H) , 8.02 -7.97 (m, 2H) , 7.74 -7.69 (m, 3H) , 7.52 -7.49 (m, 1H) , 7.00 -6.99 (m, 1H) , 6.75 -6.73 (d, J = 8.0 Hz, 1H) , 3.87 -3.84 (m, 4H) , 3.82 -3.79 (m, 2H) , 2.41 (s, 3H) , 1.95 -1.92 (m, 2H) , 1.47 -1.44 (d, J = 12.0 Hz, 2H) .
Preparation of Example 35
Step 1. 2-chloro-6-methyldispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -7 (6H) -one
To a solution of 2-chlorodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -7 (6H) -one (0.90 g, 3.05 mmol) in DMF (20 mL) was added NaH (0.24 g, 6.10 mmol, 60%purity) at 0 ℃. After addition, the mixture was stirred at 0 ℃ for 0.5 hr. Then, iodomethane (0.65 g, 4.58 mmol) was added dropwise at 0 ℃. The resulting mixture was stirred at 15 ℃ for 1 hr. After completion, the reaction was quenched by water (30 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford int 35-1 (0.74 g, 2.03 mmol, 66.7%yield) as a yellow solid. LC-MS (ESI+) : m/z 309.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.42 (d, J = 8.0 Hz, 1H) , 7.65 (d, J = 8.0 Hz, 1H) , 3.96 (s, 4H) , 2.97 (s, 3H) , 2.30 (td, J = 4.0, 12.0 Hz, 2H) , 2.04 (td, J = 4.0, 12.0 Hz, 2H) , 1.87 (d, J = 16.0 Hz, 2H) , 1.39 (d, J = 16.0 Hz, 2H) .
Step 2. 2'-chloro-6'-methylspiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine] -4, 7' (6'H) -dione
To a solution of 2-chloro-6-methyldispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -7 (6H) -one (0.73 g, 2.36 mmol) in THF (3.7 mL) was added aq. HCl (7.4 mL, 29.60 mmol, 4 M in water) . After addition, the resulting mixture was stirred at 60 ℃ for 1 hr. After cooling to room temperature, to the reaction was added saturated Na2CO3 solution (20 mL) and extracted with DCM (30 mL*3) , the combined organic layers were washed with water (30 mL*2) , followed by brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 3%) in dichloromethane to afford int 35-2 (0.48 g, 1.62 mmol, 68.5%yield) as a yellow solid. LC-MS (ESI+) : m/z 265.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.68 (d, J = 8.0 Hz, 1H) , 7.71 (d, J = 8.0 Hz, 1H) , 3.02 (s, 3H) , 2.85 (td, J= 4.0, 8.0 Hz, 2H) , 2.56 td, J= 4.0, 12.0 Hz, 2H) , 2.47-2.41 (m, 2H) , 1.75-1.71 (m, 2H) .
Step 3. 2'-chloro-4-hydroxy-6'-methylspiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
To a solution of 2'-chloro-6'-methylspiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine] -4, 7' (6'H) -dione (0.45 g, 1.70 mmol) in MeOH (10 mL) was added NaBH4 (0.13 g, 3.40 mmol) . The resulting mixture was stirred at 15 ℃ for 1 hr, then poured into water (30 mL) and extracted with DCM (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to afford int 35-3 (0.50 g, 1.69 mmol, 99.5%yield) as a white solid. LC-MS (ESI+) : m/z 267.3 (M+H) +. 1H NMR (400 MHz, DMSO-d6) δ 8.47-8.45 (d, J=8.0 Hz, 1H) , 7.72-7.70 (d, J=8.0 Hz, 1H) , 4.81-4.79 (d, J=8.0 Hz, 1H) , 3.67-3.60 (m, 1 H) , 2.96 (s, 3H) , 2.20-2.12 (m, 2H) , 1.96-1.93 (m, 2H) , 1.79-1.69 (m, 2H) , 1.33-1.29 (d, J=14.0 Hz, 2H) . Step 4.2'-chloro-4-methoxy-6'-methylspiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
To a solution of 2'-chloro-4-hydroxy-6'-methylspiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one (0.50 g, 1.88 mmol) in DMF (10 mL) was added NaH (0.23 g, 5.63 mmol, 60%purity) at 0 ℃. After addition, the mixture was stirred at 15 ℃ for 0.5 hr. Then CH3I (0.40 g, 2.82 mmol) was added, the resulting mixture was stirred at 15 ℃ for 1.5 hrs and quenched by water (30 mL) , extracted with EtOAc (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 35-4 (0.37 g, 1.18 mmol, 63.1%yield) as a yellow solid. LC-MS (ESI+) : m/z 281.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.41 (d, J = 8.0 Hz, 1H) , 7.65 (d, J = 8.0 Hz, 1H) , 3.44 -3.31 (m, 1H) , 3.33 (s, 3H) , 3.97 (s, 3H) , 2.20-2.12 (m, 4H) , 1.69-1.65 (m, 2H) , 1.39 (d, J = 12.0 Hz, 2H) .
Step 5. 2'-chloro-4-methoxy-6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2'-chloro-4-methoxy-6'-methylspiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one (0.33 g, 1.17 mmol) in THF (8 mL) were added NaBH4 (0.22 g, 5.87 mmol) and Boron trifluoride diethyl etherate (2.22 mL, 8.22 mmol, 46%purity) slowly at 0 ℃. After addition, the resulting mixture was stirred at 30 ℃ under N2 for 12 hrs. The reaction was quenched by methanol (10 mL) , concentrated under reduced pressure to give a residue, which was diluted with saturated Na2CO3 solution (20 mL) and extracted with DCM (30 mL*3) . The combined organic layers were washed with water (30 mL) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 20: 1, v/v) to afford int 35-5 (0.10 g, 0.33 mmol, 28.7%yield) as a yellow solid. LC-MS (ESI+) : m/z 267.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.97 (d, J = 8.0 Hz, 1H) , 7.30 (d, J = 8.0 Hz, 1H) , 3.86 (s, 2H) , 3.28 (s, 3H) , 3.27 -3.22 (m, 1H) , 2.37 (s, 3H) , 2.01 -1.97 (m, 2H) , 1.80 -1.72 (m, 2H) , 1.55 -1.46 (m, 4H) .
Step 6. tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (4-methoxy-6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate
To a solution of 2'-chloro-4-methoxy-6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridine] (85.0 mg, 0.32 mmol) in dioxane (3.5 mL) were added tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (122.0 mg, 0.32 mmol) , RuPhos Pd G3 (53.0 mg, 0.06 mmol) and Cs2CO3 (207.0 mg, 0.63 mmol) . After addition, the mixture was purged
with N2 for 10 mins and stirred at 130 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction mixture was poured into water (20 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 20: 1, v/v) to afford int 35-6 (100.0 mg, 0.14 mmol, 46.1%yield) as a yellow solid. LC-MS (ESI+) : m/z 613.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.85 (s, 1H) , 8.73 (d, J = 8.0 Hz, 1H) , 8.41 (t, J = 8.0 Hz, 1H) , 7.89 (d, J = 8.0 Hz, 1H) , 7.86 -7.79 (m, 2 H) , 7.54 (dd, J = 4.0, 8.0 Hz, 1H) , 6.99 (td, J = 4.0, 8.0 Hz, 1H) , 6.95 (d, J = 8.0 Hz, 1H) , 4.76 (s, 2H) , 3.89 (s, 2H) , 3.30 (s, 3H) , 3.28 -3.23 (m, 1H) , 2.39 (s, 3H) , 2.05 -1.99 (m, 2H) , 1.83 -1.70 (m, 3H) , 1.64 -154 (m, 3H) , 1.51 (s, 9H) .
Step 7. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (4-methoxy-6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (4-methoxy-6'-methyl-6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate (95.0 mg, 0.15 mmol) in DCM (3 mL) was added TFA (1 mL, 13.46 mmol) . After addition, the mixture was stirred at 20 ℃ for 2 hrs. The reaction was diluted with DCM (30 mL) and washed with saturated Na2CO3 solution (15 mL) , separated and the aqueous phase was extracted with DCM (10 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (30 mL) , dried over Na2SO4, filtered and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 10: 1, v/v) , and further purified by pre-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15ml/min; gradient: 35-45%; Retention Time: 2min of 10min) to afford compound 35 (30.0 mg, 0.05 mmol, 36.6%yield) . LC-MS (ESI+) : m/z 513.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.13 (s, 1H) , 8.85 (s, 1H) , 8.65 (d, J = 8.0 Hz, 1H) , 8.45 (t, J = 8.0 Hz, 1H) , 7.85 (d, J = 8.0 Hz, 1H) , 7.82 (s, 1H) , 7.73 (d, J = 12.0 Hz, 1H) , 7.52 (dd, J = 12.0, 4.0 Hz, 1H) , 6.96 (td, J = 8.0, 4.0 Hz, 1H) , 6.81 (d, J = 8.0 Hz, 1H) , 4.40 (s, 2H) , 3.88 (s, 2H) , 3.29 (s, 3H) , 3.28 -3.28 (m, 1H) , 2.39 (s, 3H) , 2.08 -1.97 (m, 2H) , 1.80 -1.70 (m, 2H) , 1.62 -1.49 (m, 4H) .
Preparation of Example 36
Step 1. 6'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2'-chloro-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2'-chloro-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.10 g, 0.45 mmol) in MeOH (5 mL) was added 2- ( (tert-butyldimethylsilyl) oxy) acetaldehyde (0.23 g, 1.34 mmol) at 0 ℃. After addition, the mixture was stirred at this temperature for 0.5 hr, then 2-methylpyridine borane complex (0.24 g, 2.23 mmol) was added dropwise at 0 ℃. The resulting mixture was stirred at 50 ℃ for 2.5 hrs. After cooling to room temperature, the reaction mixture was poured into water (40 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (15 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford int 36-1 (0.14 g, 0.37 mmol, 82.3%yield) as a yellow oil. LC-MS (ESI+) : m/z 383.3 [M+H] +.
Step 2. tert-butyl 7- ( (6'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
To a mixture of 6'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2'-chloro-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (91.0 mg, 0.24 mmol) and tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (96.0 mg, 0.25 mmol) in dioxane (3 mL) were added Cs2CO3 (0.16 g, 0.48 mmol) and RuPhos Pd G3 (35.0 mg, 0.04 mmol) . After addition, the resulting mixture was purged with N2 for 3 mins and stirred at 130 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into water (10 mL) and extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 36-2 (90.0 mg, 0.12 mmol, 59.0%yield) as a yellow solid. LC-MS (ESI+) : m/z 729.4 [M+H] +.
Step 3. 7- ( (6'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-
pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) isoindolin-1-one
To a solution of tert-butyl 7- ( (6’ - (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2, 3, 5, 6, 6’ , 7’ -hexahydrospiro [pyran-4, 5’ -pyrrolo [3, 4-b] pyridine] -2’ -yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridine-3-yl) -1-oxoisoindoline-2-carboxylate (50 mg, 0.07 mmol) in DCM (3 mL) was added TFA (1 mL) dropwise and was stirred at 25 ℃ for 2 hr. The reaction mixture was diluted with DCM (10 mL) and washed with saturated aq. NaHCO3 (10 mL) , followed by brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to afford int 36-3 (50.0 mg, 0.06 mmol, 92.7%yield) as a white solid, which was used in next directly without purification. LC-MS (ESI+) : m/z 629.4 [M+H] +.
Step 4. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2-hydroxyethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of 7- ( (6'- (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) isoindolin-1-one (50.0 mg, 0.06 mmol) in THF (3 mL) were added TBAF (0.24 mL, 0.24 mmol, 1 M in THF) at 0 ℃ and the mixture was stirred at 25 ℃ for 1 hr. The reaction mixture was poured into water (10 mL) and extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by Prep-HPLC (column: YMC, C18 (250*20mm, 5μm) ; mobile phase: [water (0.1%NH4HCO3) -ACN] ; B%: 20ACN%-50ACN%, 15min of 20min) to afford compound 36 (2.0 mg, 0.004 mmol, 4.9%yield) . LC-MS (ESI+) : m/z 515.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.15 (s, 1H) , 8.85 (s, 1H) , 8.68 (d, J = 8.0 Hz, 1H) , 8.45 (d, J = 8.0 Hz, 1H) , 8.09 (d, J = 8.0 Hz, 1H) , 7.83 (s, 1H) , 7.75 (d, J = 8.0 Hz, 1H) , 7.53 (dd, J = 8.0, 4.0 Hz, 1H) , 6.98 (td, J = 8.0, 4.0 Hz, 1H) , 6.82 (d, J = 8.0 Hz, 1H) , 4.48 (t, J = 4.0 Hz, 1H) , 4.41 (s, 2H) , 4.00 (s, 2H) , 3.93 -3.87 (m, 2H) , 3.80 (t, J = 12.0 Hz, 2H) , 3.57 (q, J = 8.0 Hz, 2H) , 2.77 (t, J = 4.0 Hz, 2H) , 1.99 -1.92 (m, 2H) , 1.49 (d, J = 12.0 Hz, 2H) .
Preparation of Example 37
Step 1. tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2- ( (methylsulfonyl) oxy) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2-hydroxyethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-
carboxylate (25.0 mg, 0.04 mmol) in DCM (2 mL) were added DIEA (0.02 mL, 0.12 mmol) and MsCl (10 mg, 0.08 mmol) dropwise at 0 ℃. The resulting mixture was stirred at 0 ℃ for 0.5 hr under N2 atmosphere and then was poured into water (10 mL) . The mixture was extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to afford int 37-1 (25.0 mg, crude) as a yellow solid, which was used in next step directly without purification. LC-MS (ESI+) : m/z 693.3 [M+H] +.
Step 2. tert-butyl 7- ( (6'- (2- (dimethylamino) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2- ( (methylsulfonyl) oxy) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate (15 mg, 0.02 mmol) in ACN (0.7 mL) were added DIEA (0.02 mL, 0.11mmol) and dimethylamine (0.50 mL, 0.11 mmol) at 0 ℃. After addition, the mixture was stirred at 80 ℃ for 12 hrs . After cooling to room temperature, the resulting mixture was poured into 5 mL of water, then extracted with EtOAc (5 mL*3) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated to dryness under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 37-2 (25.0 mg, 0.04 mmol, 75.6%) as a yellow solid. LC-MS (ESI+) : m/z 642.4 [M+H] +.
Step 3. 7- ( (6'- (2- (dimethylamino) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) isoindolin-1-one
To a solution of tert-butyl 7- ( (6'- (2- (dimethylamino) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (25 mg, 0.04 mmol) in DCM (1.5 mL) was added TFA (0.5 mL) dropwise. The resulting mixture was stirred at 25 ℃ for 3 hrs. Then the reaction was diluted with DCM (20 mL) , washed with saturated NaHCO3 solution (10 mL) , followed by brine (10 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by Prep-HPLC (column: YMC, C18 (250*20mm, 5μm) ; mobile phase: [water (0.1%FA) -ACN] ; B%: 20ACN%-50ACN%, 12min of 20min) to afford compound 37 (3.6 mg, 0.01 mmol, 17.1%yield) . LC-MS (ESI+) : m/z 542.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.15 (s, 1H) , 8.86 (s, 1H) , 8.68 (d, J = 8.0 Hz, 1H) , 8.45 (d, J = 8.0 Hz, 1H) , 8.09 (d, J = 8.0 Hz, 1H) , 7.83 (s, 1H) , 7.73 (dd, J = 8.0 Hz, 1H) , 7.53 (dd, J = 8.0, 4.0 Hz, 1H) , 6.98 (td, J = 8.0, 4.0 Hz, 1H) , 6.81 (d, J = 8.0 Hz, 1H) , 4.40 (s, 2H) , 4.00 (s, 2H) , 3.92 -3.86 (m, 2H) , 3.80 (t, J = 12.0 Hz, 2H) , 2.78 (t, J = 8.0 Hz, 2H) , 2.42 (t, J = 8.0 Hz, 2H) , 2.20 (s, 6H) , 2.04 -1.92 (m, 2H) , 1.47 (d, J = 12.0 Hz, 2H) .
Preparation of Example 38
Step 1. 2-Morpholinoacetaldehyde hydrochloride
A solution of 4- (2, 2-dimethoxyethyl) morpholine (0.65 g, 3.71 mmol) in Conc. HCl (6 mL) was stirred at 80 ℃ for 2 hrs. After cooling to room temperature, the reaction mixture was concentrated under reduced pressure to afford int 38-1 (1.00 g, crude) as a brown oil, which was used in next step directly without purification.
Step 2. 2'-chloro-6'- (2-morpholinoethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine]
To a mixture of 2'-chloro-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (0.14 g, 0.62 mmol) and 2-morpholinoacetaldehyde hydrochloride (483.00 mg, 1.87 mmol) in MeOH (7 mL) were added NaBH3CN (195.0 mg, 3.11 mmol) and AcOH (0.23 g, 1.24 mmol) at 0 ℃. After addition, the resulting mixture was stirred at 50 ℃ for 3 hrs. After cooling to room temperature, the reaction mixture was poured into water (20 mL) and extracted with DCM (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 38-2 (135.0 mg, 0.36 mmol, 57.7%yield) as a yellow solid. LC-MS (ESI+) : m/z 338.1 [M+H] +.
Step 3. tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2-morpholinoethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate
To a mixture of 2'-chloro-6'- (2-morpholinoethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (100.00 mg, 0.29 mmol) and tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (124 00 mg, 0.32 mmol) in dioxane (3.5 mL) were added BrettPhos Pd G3 (54.0 mg, 0.06 mmol) and Cs2CO3 (193.0 mg, 0.59 mmol) . After addition, the mixture was degassed and purged with N2 for 3 times and stirred at 130 ℃ under N2 for 3 hrs. After cooling to room temperature, the reaction mixture was poured into water (20 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by Prep-TLC (SiO2, DCM:
MeOH = 15: 1, v/v) to afford int 38-3 (80.0 mg, 0.09 mmol, 31.2%yield) as a yellow solid. LC-MS (ESI+) : m/z 684.3 [M+H] +.
Step 4. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2-morpholinoethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2-morpholinoethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate (75.0 mg, 0.11 mmol) in DCM (3 mL) was added TFA (1 mL, 13.46 mmol) dropwise at 0 ℃. After addition, then the mixture was stirred at 10 ℃ for 2 hrs. The reaction mixture was quenched by saturated aq. Na2CO3 aqueous solution (15 mL) , and extracted with DCM (20 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by Prep-TLC (SiO2, DCM: MeOH = 10: 1, v/v) to afford compound 38 (16.0 mg, 0.02 mmol, 24.0%yield) . LC-MS (ESI+) : m/z 584.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.14 (s, 1H) , 8.84 (s, 1H) , 8.67 -8.66 (d, J = 4.0 Hz, 1H) , 8.46 -8.42 (m, 1H) , 8.09 -8.07 (d, J = 8.0 Hz, 1H) , 7.82 (s, 1H) , 7.74 -7.72 (d, J = 8.0 Hz, 1H) , 7.54 -7.51 (m, 1H) , 6.99 -6.95 (m, 1H) , 6.82 -6.80 (d, J = 8.0 Hz, 1H) , 4.40 (s, 2H) , 3.98 (s, 2H) , 3.90 -3.82 (m, 2H) , 3.79 -3.76 (m, 2H) , 3.59 -3.57 (t, 4H) , 2.83 -2.79 (t, 2H) , 2.52 -2.44 (t, 6H) , 2.00 -1.95 (m, 2H) , 1.47 -1.44 (d, J = 8.0 Hz, 2H) .
Preparation of Example 39
Step 1. 2-chloro-6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolane]
To a solution of 2-chlorodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -7 (6H) -one (1.00 g, 3.39 mmol) in THF (20 mL) were added NaBH4 (1.30 g, 33.93 mmol) in portions and then BF3*OEt2 (2.40 g, 16.97 mmol, 46%purity) dropwise at 0 ℃ within 10 mins. The resulting mixture was stirred at 30 ℃ for 16 hrs and quenched by addition of MeOH (20 mL) . The mixture was poured into
H2O (150 mL) and extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 3%) in dichloromethane to afford int 39-1 (0.48 g, 1.71 mmol, 50.3%yield) as a white solid. LC-MS (ESI+) : m/z 281.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.92 (d, J = 8.0 Hz, 1H) , 7.34 (d, J = 8.0 Hz, 1H) , 7.07 (br s, 1H) , 4.17 (dd, J = 16.0, 8.0 Hz, 1H) , 3.92 (dd, J = 16.0, 8.0 Hz, 1H) , 3.88 -3.83 (m, 4H) , 2.41 -2.32 (m, 1H) , 2.26 -2.15 (m, 1H) , 1.90 (t, J = 8.0 Hz, 2H) , 1.79 -1.71 (m, 2H) , 1.61 -1.53 (m, 2H) .
Step 2. 2-chloro-6- (2-morpholinoethyl) -6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolane]
To a mixture of 2-chloro-6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolane] (0.48 g, 1.71 mmol) and 2-morpholinoacetaldehyde (0.33 g, 2.56 mmol) in MeOH (10 mL) was added sodium cyanoborohydride (0.17 g, 2.56 mmol) at 0 ℃. After addition, the resulting mixture was stirred at 50 ℃ for 2 hrs. After cooling down to room temperature, 2- (1, 4-oxazinan-4-yl) acetaldehyde (0.33 g, 2.56 mmol) and sodium cyanoborohydride (0.16 g, 2.56 mmol) were added and the reaction was stirred at 50 ℃ for 2 hrs. Then the reaction was cooled down to room temperature, followed by addition of 2- (1, 4-oxazinan-4-yl) acetaldehyde (0.22 g, 1.71 mmol) and sodium cyanoborohydride (0.11 g, 1.71 mmol) . After addition, the mixture was stirred at 50 ℃ for 1 hr. After completion, the reaction mixture was poured into H2O (100 mL) and then extracted with EtOAc (100 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford int 39-2 (0.36 g, 0.92 mmol, 53.9%yield) as a light-yellow solid. LC-MS (ESI+) : m/z 394.3 [M+H] +
.
Step 3. tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6- (2-morpholinoethyl) -6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -2-yl) amino) -1-oxoisoindoline-2-carboxylate
To a mixture of 2-chloro-6- (2-morpholinoethyl) -6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolane] (0.20 g, 0.51 mmol) , and tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (0.19 g, 0.51 mmol) in dioxane (6 mL) were added RuPhos Pd G3 (0.043g, 0.05 mmol) and Cs2CO3 (0.33 g, 1.02 mmol) . After addition, the resulting mixture was purged with N2 for 2 mins, and then the mixture was stirred at 130 ℃ for 2 hrs under N2 atmosphere. The resulting mixture was partitioned between water 30 mL and EtOAc (20 mL*2) . The organic layers was washed with brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH=10: 1, v/v) to afford int 39-3 (0.18 g, 0.25 mmol, 48.2%yield) as a yellow solid. LC-MS (ESI+) : m/z 740.1 [M+H] +.
Step 4. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6- (2-morpholinoethyl) -6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -2-yl) amino) isoindolin-1-one
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6- (2-morpholinoethyl) -6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -2-yl) amino) -1-oxoisoindoline-2-carboxylate (0.06 g, 0.08 mmol) in DCM (4.5 mL) was added TFA (1.5 mL) . The mixture was stirred at 20 ℃ for 1 hr. The reaction was diluted with DCM (20 mL) and washed with saturated aq. Na2CO3 (20 mL) , followed by brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH =10: 1, v/v) to afford int 39-4 (47.0 mg, 0.07 mmol, 90.6%yield) as a yellow solid. LC-MS (ESI+) : m/z 640.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.14 (s, 1H) , 8.87 (s, 1H) , 8.67 (d, J = 8.0 Hz, 1H) , 8.45 (t, J = 8.0 Hz, 1H) , 7.88 -7.80 (m, 2H) , 7.73 (d, J = 8.0 Hz, 1H) , 7.53 (dd, J = 8.0, 4.0 Hz, 1H) , 6.98 (td, J = 8.0, 4.0 Hz, 1H) , 6.81 (d, J = 8.0 Hz, 1H) , 4.40 (s, 2H) , 3.95 (s, 2H) , 3.92 (t, J = 4.0 Hz, 4H) , 3.58 (t, J = 4.0 Hz, 4H) , 2.77 (t, J = 4.0 Hz, 2H) , 2.49 -2.42 (m, 4H) , 1.99 -1.84 (m, 4H) , 1.75 (br d, J = 12.0 Hz, 2H) , 1.51 (br d, J = 12.0 Hz, 2H) .
Step 5. 2'- ( (7- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -3-oxoisoindolin-4-yl) amino) -6'- (2-morpholinoethyl) -6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -4-one
To a solution of 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6- (2-morpholinoethyl) -6, 7-dihydrodispiro [pyrrolo [3, 4-b] pyridine-5, 1'-cyclohexane-4', 2” - [1, 3] dioxolan] -2-yl) amino) isoindolin-1-one (47.0 mg, 0.07 mmol) in THF (0.5 mL) and H2O (0.5 mL) was added TsOH·H2O (28.0 mg, 0.15 mmol) . The mixture was stirred at 80 ℃ for 3 hrs under the N2 atmosphere. After cooling to room temperature, the reaction was adjusted pH to ~8 with saturated aq. NaHCO3 solution, then the mixture was extracted with EtOAc (20 mL*3) , the combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to afford the title compound (66.0 mg, crude) as a yellow solid and was used in next step without purification. LC-MS (ESI+) : m/z 596.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.16 (s, 1H) , 8.84 (s, 1H) , 8.68 (d, J = 8.0 Hz, 1H) , 8.45 (dd, J = 8.0, 4.0 Hz, 1H) , 8.00 (d, J = 8.0 Hz, 1H) , 7.83 (s, 1H) , 7.74 (d, J = 8.0 Hz, 1H) , 7.52 (dd, J = 8.0, 4.0 Hz, 1H) , 6.97 (td, J = 8.0, 4.0 Hz, 1H) , 6.82 (d, J = 8.0 Hz, 1H) , 4.40 (s, 2H) , 3.99 (s, 2H) , 3.57 (t, J = 4.0 Hz, 4H) , 2.85 (t, J = 8.0 Hz, 2H) , 2.71 -2.63 (m, 2H) , 2.49 -2.42 (m, 6H) , 2.40 -2.32 (m, 2H) , 2.22 (td, J = 12.0, 4.0 Hz, 2H) , 1.85 -1.75 (d, J = 12.4 Hz, 2H) .
Step 6. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (4-hydroxy-6'- (2-morpholinoethyl) -6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of 2'- ( (7- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -3-oxoisoindolin-4-yl) amino) -6'- (2-morpholinoethyl) -6', 7'-dihydrospiro [cyclohexane-1, 5'-pyrrolo [3, 4-b] pyridin] -4-one (60.0 mg, 0.08 mmol) in MeOH (2 mL) was added NaBH4 (8.4 mg, 0.22 mmol) . The reaction mixture was stirred at 20 ℃ for 3 hrs and then quenched by 15 mL of water and extracted with EtOAc (15 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 10: 1, v/v) and further purified by Prep-HPLC (SHIMADZU LC-20AP, Column: Welch XB-C18, 20*250mm, 10μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 20ml/min; gradient: 15-35%; Retention Time: 25min of 30min) to afford compound 39 (2.8 mg, 0.01 mmol, 4.2%yield) . LC-MS (ESI+) : m/z
598.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.14 (s, 1H) , 8.87 (s, 1H) , 8.69 (d, J = 8.0 Hz, 1H) , 8.46 (dd, J = 8.0, 4.0 Hz, 1H) , 7.93 (d, J = 8.0 Hz, 1H) , 7.84 (s, 1H) , 7.74 (d, J = 8.0 Hz, 1H) , 7.54 (dd, J = 8.0, 4.0 Hz, 1H) , 6.98 (td, J = 8.0, 4.0 Hz, 1H) , 6.85 (d, J = 8.0 Hz, 1H) , 4.66 (d, J = 8.0 Hz, 1H) , 4.41 (s, 2H) , 3.95 (s, 2H) , 3.59 (t, J = 4.0 Hz, 4H) , 2.79 (t, J = 8.0 Hz, 2H) , 2.50 -2.40 (m, 7H) , 1.92 -1.71 (m, 4H) , 1.69 -1.55 (m, 2H) , 1.48 (d, J = 12.0 Hz, 2H) .
Preparation of Example 40
Step 1. (S) -2'-chloro-6'- (2- (3-fluoropyrrolidin-1-yl) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2- (2'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -6' (7'H) -yl) ethyl methanesulfonate (0.34 g, 1.16 mmol) in CH3CN (6 mL) were added (S) -3-Fluoro-pyrrolidine hydrochloride (258.0 mg, 2.89 mmol) and N-ethyl-N-isopropylpropan-2-amine (0.80 mL, 4.83 mmol) . After addition, the resulting mixture was stirred at 70 ℃ for 16 hrs. After cooling to room temperature, the reaction mixture was poured into water (30 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 20: 1, v/v) to afford int 40-1 (99.0 mg, 0.29 mmol, 30.2%yield) as a yellow oil. LC-MS (ESI+) : m/z 340.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.21 (d, J = 8.0 Hz, 1H) , 7.31 (d, J = 8.0 Hz, 1H) , 5.26 -5.09 (m, 1H) , 3.97 (s, 2H) , 3.88 -3.84 (m, 2H) , 3.77 -3.71 (m, 2H) , 2.92 -2.76 (m, 4H) , 2.68 -2.56 (m, 3H) , 2.36 -2.30 (m, 1H) , 2.15 -2.05 (m, 1H) , 2.00 -1.92 (m, 2H) , 1.90-1.78 (m, 1H) , 1.45 (d, J = 12.0 Hz, 2H) .
Step 2. tert-butyl (S) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2- (3-fluoropyrrolidin-1-yl) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate
To a solution of (S) -2'-chloro-6'- (2- (3-fluoropyrrolidin-1-yl) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (80.0 mg, 0.23 mmol) in dioxane (4.5 mL) were added tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (94.0 mg, 0.24 mmol) , BrettPhos Pd G3 (42.0 mg, 0.04 mmol) and Cs2CO3 (153.0 mg, 0.47 mmol) . After addition, the resulting mixture was purged with N2 for 10 mins and stirred at 130 ℃ under N2 for 2 hrs.
After cooling to room temperature, the reaction mixture was poured into water (30 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH=20/1, v/v) to afford int 40-2 (87.0 mg, 0.11 mmol, 48.0%yield) as a yellow solid. LC-MS (ESI+) : m/z 686.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.85 (s, 1H) , 8.73 (d, J = 8.0 Hz, 1H) , 8.40 (t, J = 4.0 Hz, 1H) , 8.12 (d, J = 8.0 Hz, 1H) , 7.86-7.81 (m, 2H) , 7.54 (d, J = 8.0 Hz, 1H ) , 7.00 (t, J = 8.0 Hz, 1H) , 6.95 (d, J = 8.0 Hz, 1H) , 5.28 -5.11 (m, 1H) , 4.75 (s, 2H) , 3.98 (s, 2H) , 3.90 -3.86 (m, 2H) , 3.83 -3.77 (m, 2H) , 2.90 -2.85 (m, 2H) , 2.82 -2.79 (m, 2H) , 2.71 -2.64 (m, 3H) , 2.39 -2.37 (m, 1H) , 2.18 -2.06 (m, 1H) , 2.02 -1.90 (m, 2H) , 1.88 -1.80 (m, 1H) , 1.51 (s, 9H) , 1.48 -1.45 (m, 2H) .
Step 3. (S) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2- (3-fluoropyrrolidin-1-yl) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of tert-butyl (S) -4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2- (3-fluoropyrrolidin-1-yl) ethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -1-oxoisoindoline-2-carboxylate (80.0 mg, 0.11 mmol) in DCM (3 mL) was added TFA (1 mL, 13.46 mmol) at 0 ℃. After addition, the mixture was stirred at 15 ℃ for 2 hrs. After completion, the reaction mixture was added saturated aq. Na2CO3 solution (20 mL) and extracted with DCM (30 mL*3) . The combined organic layers were washed with water (30 mL*2) , followed by brine (30 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%HCl, B: ACN; flow rate: 15ml/min; gradient: 5-25%; Retention Time: 12 min of 20 min) to afford compound 40 (10.0 mg, 0.01 mmol, 14.1%yield) . LC-MS (ESI+) : m/z 586.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.14 (s, 1H) , 8.84 (s, 1H) , 8.66 (d, J = 8.0 Hz, 1H) , 8.44 (t, J = 4.0 Hz, 1H ) , 8.18 (d, J = 12.0 Hz, 1H) , 7.82 (s, 1H) , 7.73 (d, J = 8.0 Hz, 1H) , 7.53 (d, J = 12.0 Hz, 1H ) , 6.97 (t, J = 4.0 Hz, 1H ) , 6.81 (d, J = 8.0 Hz, 1H) , 5.26 -5.12 (m, 1H) , 4.40 (s, 2H) , 3.99 (s, 2H) , 3.91 -3.86 (m, 2H) , 3.82 -3.76 (m, 2H) , 2.94 -2.89 (m, 2H) , 2.87 -2.79 (m, 2H) , 2.71 -2.66 (m, 1H) , 2.64 -2.61 (m, 2H) , 2.37 -2.32 (m, 1H) , 2.15 -2.07 (m, 1H) , 2.02 -1.94 (m, 2H) , 1.91 -1.78 (m, 1H) , 1.47 (d, J = 12.0 Hz, 2H) .
The following compounds of examples 41-47 were prepared using a synthesis method similar to that describe in example 40.
Preparation of Example 48
Step 1. 5-methoxy-3- ( (6'-methyl-1- (oxetan-3-yl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
To a mixture of INT 31-1 (135.0 mg, 0.46 mmol) and INT 20-4 (116 mg, 0.41 mmol) in dioxane (3 mL) were added BrettPhos Pd G3 (42 mg, 0.05 mmol) and Cs2CO3 (299 mg, 0.92 mmol) , then the resulting mixture was purged with N2 for 3 mins and stirred at 135 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction mixture was poured into 10 mL of water and extracted with EtOAc (10 mL*3) . The combined organic layers were washed with brine (5 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford INT 48-1 (95.0 mg, 0.18 mmol, 39.0%) as a light yellow solid. LC-MS (ESI+) : m/z 537.1 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.53 (s, 1H) , 8.16 (s, 1H) , 8.13 (s, 1H) , 8.01 (d, J = 8.0 Hz, 1H) , 7.63 (d, J = 8.0 Hz, 1H) , 7.34 (t, J = 8.0 Hz, 1H) , 7.24 (d, J = 8.0 Hz, 1H) , 6.99 (d, J = 8.0 Hz, 1H) , 4.58 (t, J = 8.0 Hz, 2H) , 4.55 -4.48 (m, 2H) , 3.94 -3.82 (m, 5H) , 3.82 -3.76 (m, 1H) , 3.73 (s, 3H) , 2.76 -2.66 (m, 2H) , 2.49 (s, 3H) , 2.46 -2.39 (m, 2H) , 2.07 -1.99 (m, 2H) , 1.68 -1.52 (s, 2H) .
Step 2. 5-methoxy-3- ( (6'-methyl-1- (oxetan-3-yl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinamide
To a solution of 5-methoxy-3- ( (6'-methyl-1- (oxetan-3-yl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (90.0 mg, 0.17 mmol) in DMSO (2 mL) was added K2CO3 (70.0 mg, 0.50 mmol) , followed by addition hydrogen peroxide (0.19 mL, 1.68 mmol, 30%purity) dropwise. The resulting mixture was stirred at 20 ℃ for 1 hr and poured into 6 mL of water. Precipitate was separated out and filtered. The cake was washed with water (3 mL*3) and dried over vacuum to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 12: 1, v/v) and further purified by prep-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN ; flow rate: 15 mL/min; gradient: 28-48%; Retention Time: 12 min of 20 min) to afford compound 48 (20.0 mg, 0.036 mmol, 22.0%yield) . LC-MS (ESI+) : m/z 555.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.78 (s, 1H) , 9.02 (s, 1H) , 8.15 (s, 1H) , 8.04 (d, J = 4.0 Hz, 1H) , 7.96 (d, J = 8.0 Hz, 1H) , 7.65 (d, J = 4.0 Hz, 1H) , 7.59 (d, J = 8.0, Hz, 1H) , 7.42 (d, J=8.0 Hz, 1H) , 7.33 (t, J = 8.0 Hz, 1H) , 6.77 (d, J = 8.0 Hz, 1H) , 4.57 (t, J = 8.0 Hz, 2H) , 4.47 (t, J = 8.0 Hz, 2H) , 3.91 (s, 2H) , 3.87 (s, 3H) , 3.80 (s, 3H) , 3.60 (t, J = 8.0 Hz, 1H) , 2.66 (d, J = 12.0 Hz, 2H) , 2.42 (s, 3H) , 2.32 (t, J = 12.0 Hz, 2H) , 1.96 (td, J = 16.0, 4.0 Hz, 2H) , 1.52 (d, J = 16.0 Hz, 2H) .
Preparation of Example 49
Step 1. 1- (2'-chloro-2, 3, 5, 6-tetrahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -6' (7'H) -yl) -2, 2, 2-trifluoroethan-1-one
To a solution of int 3-6 (1.50 g, 6.67 mmol) in THF (30 mL) was added TEA (2.8 mL, 20.02 mmol) , followed by 2, 2, 2-trifluoroacetic anhydride (1.9 mL, 13.35 mmol) dropwise at 0 ℃. The resulting mixture was stirred at 25 ℃ for 18 hrs and poured into ice-water (100 mL) , extracted with EtOAc (100 mL*3) . The combined organic layers were washed with water (50 mL*2) , followed by brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford INT 49-1 (2.40 g, 5.98 mmol, 89.7%yield) as a yellow solid. LC-MS (ESI+) : m/z 321.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.48 (d, J = 8.0 Hz, 1H) , 7.48 (d, J = 8.0 Hz, 1H) , 5.06 (s, 2H) , 3.95 -3.80 (m, 4H) , 3.05 (td, J = 12.0, 4.0 Hz, 2H) , 1.63 (d, J = 12.0 Hz, 2H) .
Step 2. 2'-chloro-6'- (2, 2, 2-trifluoroethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of INT 49-1 (2.40 g, 7.48 mmol) in THF (30 mL) was slowly added NaBH4 (1.41 g, 37.41 mmol) in portions. After addition, the mixture was cooled down to 0 ℃ and BF3*Et2O (4.2 mL, 15.49 mmol) was added dropwise. The mixture was stirred at 30 ℃ under N2 for 12 hrs. The resulting mixture was quenched by 100 mL of MeOH. The mixture was stirred at 25 ℃ for 0.5 hr and concentrated to give a residue, which was diluted with 50 mL of water and adjusted pH to ~8 with Na2CO3. The precipitate was filtered and washed with water (5 mL*3) , dried on vacuum to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford INT 49-2 (1.30 g, 4.24 mmol, 56.6%yield) as a white solid. LC-MS (ESI+) : m/z 307.2 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.27 (d, J = 8.0 Hz, 1H) , 7.35 (d, J = 8.0 Hz, 1H) , 4.12 (s, 2H) , 3.88 (d, J = 8.0 Hz, 1H) , 3.85 (d, J = 8.0 Hz, 1H) , 3.75 (td, J = 12.0, 4.0 Hz, 2H) , 3.56 (q, J = 8.0 Hz, 2H) , 1.93 (td, J = 12.0, 8.0 Hz, 2H) , 1.52 (d, J = 12.0 Hz, 2H) .
Step 3. 5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'- (2, 2, 2-trifluoroethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a solution of INT 20-4 (150.0 mg, 0.53 mmol) in DMF (6 mL) were added INT 49-2 (181.0 mg, 0.59 mmol) , Pd2 (dba) 3 (49.0 mg, 0.05 mmol) , XantPhos (46.0 mg, 0.08 mmol) and Cs2CO3 (525 mg, 1.61 mmol) . The resulting mixture was degassed and purged with N2 for 3 times and stirred at 130 ℃under N2 for 2 hrs. After cooling to room temperature, the reaction mixture was poured into water (30 mL) and extracted with EtOAc (50 mL*3) . The combined organic layers were washed with water (50 mL*2) , followed by brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by pre-TLC (SiO2, DCM: MeOH = 15: 1, v/v) to afford INT 49-3 (180.0 mg, 0.32 mmol, 61.0%yield) as a yellow solid. LC-MS (ESI+) : m/z 550.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.51 (s, 1H) , 8.17 -8.15 (m, 1H) , 8.14 (s, 1H) , 8.13 (s, 1H) , 7.63 (d, J = 8.0 Hz, 1H) , 7.34 (t, J = 8.0 Hz, 1H) , 7.23 (d, J = 8.0 Hz, 1H) , 7.00 (d, J = 8.0 Hz, 1H) , 4.07 (s, 2H) , 3.92-3.89 (m, 1H) , 3.87 (s, 3H) , 3.85 -3.83 (m, 1H) , 3.82 -3.79 (s, 2H) , 3.73 (s, 3H) , 3.57-3.51 (m, 2H) , 1.98-1.91 (m, 2H) , 1.50 (d, J = 12.0 Hz, 2H) .
Step 4. 5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'- (2, 2, 2-trifluoroethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of INT 49-3 (280.0 mg, 0.51 mmol) in DMSO (6 mL) was added K2CO3 (211.0 mg, 1.52 mmol) , followed by hydrogen peroxide (577.0 mg, 5.09 mmol) dropwise. The resulting mixture was stirred at 25 ℃ for 0.5 hr and poured into water (30 mL) , extracted with EtOAc (50 mL*3) . The combined organic layers were washed with water (50 mL*2) , followed by brine (50 mL) , dried over Na2SO4, filtered and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 4.5%) in dichloromethane and further purified by prep-HPLC (SHIMADZU LC-20AP, Column: Welch XB-C18, 20*250mm, 10μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flowrate: 20 ml/min; gradient: 30-75%; Retention Time: 22 min of 25 min) to afford the title compound 49 (56.0 mg, 0.09 mmol, 19.0%yield) . LC-MS (ESI+) : m/z 568.0 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.85 (s, 1H) , 9.00 (s, 1H) , 8.17 -8.12 (m, 2H) , 8.04 (d, J = 4.0 Hz, 1H) , 7.64 (d, J = 4.0 Hz, 1H) , 7.59 (d, J = 8.0, 1H) , 7.42 (dd, J = 8.0, 4.0 Hz, 1H) , 7.33 (t, J = 8.0 Hz, 1H) , 6.82 (d, J = 8.0 Hz, 1H) , 4.15 (s, 2H) , 3.94 -3.88 (m, 2H) , 3.87 (s, 3H) , 3.85-3.82 (m, 1H) , 3.80 (s, 3H) , 3.79-3.75 (m, 1H) , 3.56 (q, J = 8.0 Hz, 2H) , 1.94 (td, J = 12.0, 4.0 Hz, 2H) , 1.53 (d, J = 12.0 Hz, 2H) .
Preparation of Example 50
Step 1. 3-amino-5-methoxy-6- (3-methyl-3H-imidazo [4, 5-c] pyridin-7-yl) picolinonitrile
To a solution of 3-amino-6-bromo-5-methoxypicolinonitrile (500.0 mg, 2.19 mmol) in dioxane (15 mL) and H2O (1.5 mL) were added (3-methyl-3H-imidazo [4, 5-c] pyridin-7-yl) boronic acid (1941.0 mg, 4.39 mmol) , Pd (dppf) Cl2. CH2Cl2 (179.0 mg, 0.22 mmol) and CsF (999.0 mg, 6.58 mmol) . The resulting mixture was degassed and purged with N2 for 3 times and stirred at 110 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction was poured into H2O (5 mL) and filtered to give a black solid, which was triturated with DCM at 20 ℃ for 10 mins, and then filtered, the cake was dried on vacuum to afford INT 50-1 (250.0 mg, 0.89 mmol, 40.7%yield) as a black solid. LC-MS (ESI+) : 281.3 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.97 (s, 1H) , 8.35 (s, 1H) , 8.29 (s, 1H) , 6.90 (s, 1H) , 6.43 (br s, 2H) , 3.98 (s, 3H) , 3.72 (s, 3H) .
Step 2. 5-methoxy-3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -6- (3-methyl-3H-imidazo [4, 5-c] pyridin-7-yl) picolinonitrile
A mixture of INT50-1 (200.0 mg, 0.71 mmol) , int3 (170.0 mg, 0.71 mmol) , BrettPhos Pd G3 (2.0 mg, 0.002 mmol) and Cs2CO3 (465.0 mg, 1.43 mmol) in dioxane (7 mL) was purged with N2 for 3 mins. The resulting mixture was stirred at 135 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the mixture was poured into H2O (30 mL) and extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (60 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 10%) in dichloromethane to afford INT 50-2 (180.0 mg, 0.37 mmol, 52.3%yield) as a yellow solid. LC-MS (ESI+) : 483.3 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.52 (s, 1H) , 9.02 (s, 1H) , 8.39 (s, 1H) , 8.38 (s, 1H) , 8.23 (s, 1H) , 8.10 (d, J = 8.0 Hz, 1H) , 7.01 (d, J = 8.0 Hz, 1H) , 4.00 (s, 3H) , 3.87 (s, 2H) , 3.86 -3.78 (m, 4H) , 3.77 (s, 3H) , 2.42 (s, 3H) , 2.00 -1.95 (s, 2H) , 1.46 (d, J = 16.0 Hz, 2H) .
Step 3. 5-methoxy-3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -6- (3-methyl-3H-imidazo [4, 5-c] pyridin-7-yl) picolinamide
To a solution of INT 50-2 (180.0 mg, 0.37 mmol) in DMSO (5 mL) was added K2CO3 (155.0 mg, 1.12 mmol) , followed by addition of hydrogen peroxide (0.58 mL, 7.46 mmol) dropwise. The
resulting mixture was stirred at 25 ℃ for 1 hr and poured into H2O (20 mL) , extracted with DCM (40 mL*3) . The combined organic layers were washed with brine (60 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250 mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15 mL/min; gradient: 15-35%; Retention Time: 15 min of 20 min) to afford the title compound 50 (13.0 mg, 0.026 mmol, 7.0%yield) . LC-MS (ESI+) : 501.4 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.85 (s, 1H) , 9.07 (s, 1H) , 8.98 (s, 1H) , 8.60 (s, 1H) , 8.39 (s, 1H) , 8.14 (d, J = 4.0 Hz, 1H) , 8.08 (d, J = 8.0 Hz, 1H) , 7.70 (d, J = 4.0 Hz, 1H) , 6.80 (d, J = 8.0 Hz, 1H) , 3.98 (s, 3H) , 3.94 (s, 2H) , 3.91 -3.86 (m, 2H) , 3.84 (s, 3H) , 3.83-3.76 (m, 2H) , . 2.43 (s, 3H) , 2.03 -1.90 (m, 2H) , 1.47 (d, J = 12.0 Hz, 2H) .
The following compounds of examples 51-57 were prepared using a synthesis method similar to that describe in example 50.
Preparation of Example 58
Step 1. 3-bromo-2-chloro-5- (difluoromethoxy) pyridine
To a mixture of 5-bromo-6-chloropyridin-3-ol (2.00 g, 9.60 mmol) in ACN (20 mL) and H2O (20 mL) were added KOH (10.80 g, 191.94 mmol) , and the mixture was cooled to -40 ℃, then diethyl (bromodifluoromethyl) phosphonate (3.42 mL, 19.194 mmol) was added. The resulting mixture was allowed to warm to 20 ℃ for 2 hrs and then poured into H2O (40 mL) . The mixture was extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (80 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 20%) in petroleum ether to afford INT 58-1 (1.50 g, 5.81 mmol, 60.5%yield) as yellow oil. LC-MS (ESI+) : 258.1 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.42 (d, J = 4.0 Hz, 1H) , 8.29 (d, J = 4.0 Hz, 1H) , 7.38 (t, J = 72.0 Hz, 1H) .
Step 2. N- (2-chloro-5- (difluoromethoxy) pyridin-3-yl) -1, 1-diphenylmethanimine
A mixture of 3-bromo-2-chloro-5- (difluoromethoxy) pyridine (1.00 g, 3.87 mmol) , diphenylmethanimine (0.80 g, 4.26 mmol) , Pd2 (dba) 3 (0.40 g, 0.39 mmol) , XantPhos (0.40 g, 0.77 mmol) and Cs2CO3 (2.50 g, 7.74 mmol) in dioxane (20 mL) was degassed and purged with N2 for 3 times, and then the mixture was stirred at 100 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction mixture was poured into H2O (30 mL) , extracted with EtOAc (40 mL*3) . The combined organic layers were washed with brine (60 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford INT 58-2 (1.30 g, 3.62 mmol, 93.6%yield) as a yellow oil. LC-MS (ESI+) : 359.2 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.95 (d, J =4.0 Hz, 1H) , 7.84 -7.80 (m, 1H) , 7.75 (d, J = 8.0 Hz, 2H) , 7.63 (t, J = 8.0 Hz, 1H) , 7.54 (t, J = 8.0 Hz, 2H) , 7.50 -7.47 (m, 1H) , 7.40 (d, J = 4.0 Hz, 2H) , 7.28 -7.25 (m, 2H) , 7.22 (t, J = 72.0 Hz, 1H) .
Step 3. 5- (difluoromethoxy) -3- ( (diphenylmethylene) amino) picolinonitrile
A mixture of N- (2-chloro-5- (difluoromethoxy) pyridin-3-yl) -1, 1-diphenylmethanimine (1.20 g, 3.34 mmol) , Zn (CN) 2 (0.39 g, 3.34 mmol) , Zn (22.0 mg, 0.33 mmol) , BrettPhos Pd G3 (5.0 mg, 0.006 mmol) in DMF (30 mL) was degassed and purged with N2 for 3 times, and then the mixture was stirred at 120 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the mixture was poured into H2O (150 mL) . and extracted with (60 mL*3) . The combined organic layers were washed with brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 30%) in petroleum ether to afford INT 58-3 (1.10 g, 3.15 mmol, 94.2%yield) as a white solid. LC-MS (ESI+) : 350.3 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.23 (d, J = 4.0 Hz, 1H) , 7.75 (br s, 2H) , 7.65 (br s, 1H) , 7.60 -7.51 (m, 2H) , 7.48 (d, J = 4.0 Hz, 1H) , 7.43 (br s, 3H) , 7.38 (t, J = 72.0 Hz, 1H) , 7.26 (br s, 2H) .
Step 4. 3-amino-5- (difluoromethoxy) picolinonitrile
To a solution of 5- (difluoromethoxy) -3- ( (diphenylmethylene) amino) picolinonitrile (1.10 g, 3.15 mmol) in THF (15 mL) was added HCl (3.2 mL, 6.30 mmol, 2N) at 0 ℃. The resulting mixture was stirred at 20 ℃ for 2 hr. After completion, the reaction was diluted with DCM (10 mL) and water (20 mL) , then adjusted pH to ~9 with Na2CO3, separated and the aqueous phase was extracted with DCM (30 mL*2) . The combined organic layers were washed with brine (40 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 60%) in petroleum ether to afford INT 58-4 (500.0 mg, 2.70 mmol, 85.8%yield) as a white solid. LC-MS (ESI+) : 186.3 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.78 (d, J = 4.0 Hz, 1H) , 7.36 (t, J = 72.0 Hz, 1H) , 6.99 (d, J = 4.0 Hz, 1H) , 6.59 (s, 2H) .
Step 5. 3-amino-6-bromo-5- (difluoromethoxy) picolinonitrile
To a solution of 3-amino-5- (difluoromethoxy) picolinonitrile (700.0 mg, 3.78 mmol) in ACN (15 mL) was added NBS (1.00 g, 5.67 mmol) in portions. The mixture was stirred at 20 ℃ for 12 hrs and
poured into water (40 mL) , extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (60 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 40%) in petroleum ether to afford INT 58-5 (600.0 mg, 2.27 mmol, 60.1%yield) as a white solid. LC-MS (ESI+) : 264.2 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 7.37 (t, J = 72.0 Hz, 1H) , 7.12 (s, 1H) , 6.82 (s, 2H) .
Step 6. 3-amino-5- (difluoromethoxy) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
A mixture of 3-amino-6-bromo-5- (difluoromethoxy) picolinonitrile (0.30 g, 1.14 mmol) , 1-methyl-4- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) -1H-benzo [d] imidazole (352.0 mg, 1.36 mmol) , Pd (dppf) Cl2 (83.0 mg, 0.11 mmol) , K2CO3 (471.0 mg, 3.41 mmol) in dioxane (10 mL) and H2O (1 mL) was degassed and purged with N2 for 3 times. The resulting mixture was stirred at 110 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction was poured into H2O (30 mL) and extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (60 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 10%) in dichloromethane to afford INT 58-6 (280.0 mg, 0.89 mmol, 78.1%yield) as a white solid. LC-MS (ESI+) : 316.3 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.18 (s, 1H) , 7.64 (d, J = 8.0 Hz, 1H) , 7.35 (t, J = 8.0 Hz, 1H) , 7.25 (s, 1H) , 7.23 (t, J = 72.0 Hz, 1H) , 7.17 (s, 1H) , 6.65 (s, 2H) , 3.88 (s, 3H) .
Step 7. 5- (difluoromethoxy) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
A mixture of 3-amino-5- (difluoromethoxy) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (150.0 mg, 0.48 mmol) , 2'-chloro-6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridine] (114.0 mg, 0.48 mmol) , BrettPhos Pd G3 (2.0 mg, 0.002 mmol) , Cs2CO3 (310.0 mg, 0.95 mmol) in dioxane (6 mL) was degassed and purged with N2 for 3 times, and then the mixture was stirred at 135 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the reaction was poured into H2O (30 mL) and extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (60 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 10%) in dichloromethane to afford INT 58-7 (190.0 mg, 0.37 mmol, 77.2%yield) as a yellow solid. LC-MS (ESI+) : 518.3 m/z [M+H] +.
Step 8. 5- (difluoromethoxy) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of 5- (difluoromethoxy) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile (180.0 mg, 0.35 mmol) in DMSO (5 mL) was added K2CO3 (144.0 mg, 1.04 mmol) , followed by hydrogen peroxide (0.54 mL, 6.96 mmol, 30%purity) dropwise. The mixture was stirred at 25 ℃ for 1 hr and poured into water (40 mL) , extracted with EtOAc (50 mL*3) . The combined organic layers were washed with brine (60 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-
HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15 ml/min; gradient: 20-50%; Retention Time: 27 min of 30 min) to afford the title compound 58 ( (60.0 mg, 0.11 mmol, 32.2%yield) . LC-MS (ESI+) : 536.3 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.84 (s, 1H) , 9.37 (s, 1H) , 8.21 (s, 1H) , 8.16 (d, J = 4.0 Hz, 1H) , 8.10 (d, J = 8.0 Hz, 1H) , 7.90 (d, J = 4.0 Hz, 1H) , 7.67 (d, J = 8.0 Hz, 1H) , 7.50 -7.46 (m, 1H) , 7.40 (t, J = 8.0 Hz, 1H) , 7.28 (t, J = 72.0 Hz, 1H) , 6.83 (d, J = 8.0 Hz, 1H) , 3.92 (s, 2H) , 3.90 (s, 3H) , 3.90 -3.77 (m, 4H) , 2.45 (s, 3H) , 2.05 -1.91 (m, 2H) , 1.49 (d, J = 12.0 Hz, 2H) .
The following compounds of examples 59-62 and 70 were prepared using a synthesis method similar to that describe in example 48.
Preparation of Example 63
Step 1. 2'-chloro-6'- (4-methoxybenzyl) spiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
To a solution of 2-chloro-6- (4-methoxybenzyl) -5, 6-dihydro-7H-pyrrolo [3, 4-b] pyridin-7-one (2.50 g, 8.66 mmol) in THF (50 mL) was added Potassium tert-butoxide (2.90 g, 25.98 mmol) , followed by 1, 4-diiodobutane (1.7 mL, 12.99 mmol) at 0 ℃. The resulting mixture was stirred at 25 ℃ for 2 hrs and poured into water (80 mL) and extracted with EtOAc (80 mL*3) . The combined organic layers were washed with water (100 mL) , followed by brine (100 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford INT 63-1 (957.0 mg, 2.79 mmol, 32.2%) as a colorless solid. LC-MS (ESI+) : m/z 343.3 [M+H] +. 1H NMR: (400 MHz, DMSO-d6) δ 8.15 (d, J = 8.0 Hz, 1H) , 7.71 (d, J = 8.0 Hz, 1H) , 7.25 (d, J = 8.0 Hz, 2H) , 6.87 (d, J = 8.0 Hz, 2H) , 4.67 (s, 2H) , 3.72 (s, 3H) , 2.01 -1.97 (m, 2H) , 1.91 -1.85 (m, 4H) , 1.79 -1.74 (m, 2H) .
Step 2. 2'-chlorospiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
To a solution of 2'-chloro-6'- (4-methoxybenzyl) spiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one (857.0 mg, 2.50 mmol) in ACN (6 mL) and H2O (2 mL) was added ceric ammonium nitrate
(4.20 g, 7.66 mmol) at 0 ℃ in portions. The resulting mixture was stirred at 25 ℃ for 0.5 hr and poured into H2O (30 mL) . The solution was adjusted pH to 8 with NaHCO3 and then extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (30 mL*2) , dried over Na2SO4, filtered, and concentrated to give a residue, which was triturated with EA at 20 ℃ for 5 mins to afford INT 63-2 (377.0 mg, 1.69 mmol, 67.7%) as a white solid. LC-MS (ESI+) : m/z 223.3 [M+H] +. 1H NMR: (400 MHz, DMSO-d6) δ 9.44 (s, 1H) , 8.18 (d, J = 8.0 Hz, 1H) , 7.70 (d, J = 8.0 Hz, 1H) , 2.12 -2.05 (m, 2H) , 2.00 -1.84 (m, 4H) , 1.82 -1.72 (m, 2H) .
Step 3. 2'-chloro-6', 7'-dihydrospiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2'-chlorospiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one (373.0 mg, 1.68 mmol) in THF (10 mL) was added NaBH4 (317.0 mg, 8.37 mmol) at 0 ℃, followed by BF3OEt2 (3.0 mL, 11.72 mmol) dropwise. After addition, the mixture was stirred at 30 ℃ for 16 hrs. The reaction mixture was quenched by addition of MeOH (8 mL) at 20 ℃, then the reaction mixture was concentrated to give a residue, which was diluted with H2O (10 mL) and stirred at 20 ℃ for 20 mins, adjusted pH to 8 with NaHCO3, extracted with EtOAc (25 mL*2) . The combined organic layers were washed with brine (20 mL*2) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 20: 1, v/v) to afford INT 63-3 (116.0 mg, 0.56 mmol, 33.2%) as a white solid. LC-MS (ESI+) : m/z 209.3 [M+H] +. 1H NMR: (400 MHz, DMSO-d6) δ 7.69 (d, J = 8.0 Hz, 1H) , 7.29 (d, J = 8.0 Hz, 1H) , 3.94 (s, 2H) , 1.81 -1.69 (m, 8H) .
Step 4. 2'-chloro-6'-methyl-6', 7'-dihydrospiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2'-chloro-6', 7'-dihydrospiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridine] (120.0 mg, 0.58 mmol) in MeOH (3 mL) was added AcOH (0.06 mL) and paraformaldehyde (155.0 mg, 1.73 mmol) at 0 ℃, followed by sodium cyanoborohydride (108.0 mg, 1.73 mmol) in portions. The resulting mixture was stirred at 50 ℃ for 3 hrs. After cooling to room temperature, the reaction mixture was diluted with H2O (20 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (30 mL*2) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 20: 1, v/v) to afford Int 63-4 (92.0 mg, 0.41 mmol, 71.8%) as colorless oil. LC-MS (ESI+) : m/z 223.3 [M+H] +. 1H NMR: (400 MHz, DMSO-d6) δ 7.67 (d, J = 8.0 Hz, 1H) , 7.31 (d, J = 8.0 Hz, 1H) , 3.79 (s, 2H) , 2.39 (s, 3H) , 2.03 -1.96 (m, 2H) , 1.76 -1.71 (m, 4H) , 1.54 -1.47 (m, 2H) .
Step 5. 5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-6', 7'-dihydrospiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a mixture of 2'-chloro-6'-methyl-6', 7'-dihydrospiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridine] (50.0 mg, 0.23 mmol) and 3-amino-5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile (63.0 mg, 0.23 mmol) in dioxane (1.5 mL) was added BrettPhos Pd G3 (20.0 mg, 0.02 mmol) , Cs2CO3 (146.0 mg, 0.45 mmol) . The resulting mixture was purged with N2 for 3 mins and stirred at 130 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction mixture was poured into H2O (15 mL) and then extracted with DCM (15 mL*3) . The combined organic layers were washed with
brine (15 mL*2) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by prep-TLC (SiO2, DCM: MeOH = 10: 1, v/v) to afford INT 63-5 (58.0 mg, 0.13 mmol, 55.5%) as a yellow solid. LC-MS (ESI+) : m/z 466.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.36 (s, 1H) , 8.13 (s, 1H) , 8.11 (s, 1H) , 7.61 (d, J = 8.0 Hz, 1H) , 7.53 (d, J = 8.0 Hz, 1H) , 7.33 (d, J = 8.0 Hz, 1H) , 7.27 (t, J = 8.0 Hz, 1H) , 6.97 (d, J = 8.0 Hz, 1H) , 3.86 (s, 3H) , 3.83 (s, 2H) , 3.70 (s, 3H) , 2.38 (s, 3H) , 1.99 -1.95 (m, 2H) , 1.74 -1.70 (m, 4H) , 1.53 -1.48 (m, 2H) .
Step 6. 5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-6', 7'-dihydrospiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of 5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (6'-methyl-6', 7'-dihydrospiro [cyclopentane-1, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile (100.0 mg, 0.26 mmol) in DMSO (2 mL) was added K2CO3 (30.0 mg, 0.26 mmol) , followed by addition of hydrogen peroxide (0.2 mL, 2.15 mmol, 30%purity) dropwise. After that, the mixture was stirred at 25 ℃ for 1 hr, then to the mixture was added K2CO3 (29.7 mg, 0.22 mmol) , followed by hydrogen peroxide (0.2 mL, 2.15 mmol, 30%purity) . The resulting mixture was stirred at 25 ℃ for another 0.5 hrs and poured into H2O (10 mL) and stirred at 20 ℃ for 10 mins. The precipitate was filtered and dried on vacuum to give a residue, which was purified by prep-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN ; flow rate: 15ml/min; gradient: 30-60%; Retention Time: 22.5 min of 30 min) to afford the title compound 63 (17.0 mg, 0.03 mmol, 15.9%yield) . LC-MS (ESI+) : m/z 484.4 [M+H] +. 1H NMR: (400 MHz, DMSO-d6) δ 11.75 (s, 1H) , 9.01 (s, 1H) , 8.15 (s, 1H) , 8.02 (d, J = 4.0 Hz, 1H) , 7.63 (d, J = 4.0 Hz, 1H) , 7.59 (dd, J = 8.0, 4.0 Hz, 1H) , 7.54 (d, J = 8.0 Hz, 1H) , 7.42 (d, J = 8.0 Hz, 1H) , 7.33 (t, J = 8.0 Hz, 1H) , 6.80 (d, J = 8.0 Hz, 1H) , 3.86 (s, 3H) , 3.83 (s, 2H) , 3.79 (s, 3H) , 2.41 (s, 3H) , 2.03 -1.96 (m, 2H) , 1.76 -1.73 (m, 4H) , 1.56 -1.51 (m, 2H) .
The following compounds of examples 64-68 and 71 were prepared using a synthesis method similar to that describe in example 49.
Preparation of Example 69
Step 1. tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxo-7- ( (6'- (2, 2, 2-trifluoroethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindoline-2-carboxylate
A mixture of tert-butyl 7-amino-4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxoisoindoline-2-carboxylate (80.0 mg, 0.21 mmol) , 2'-chloro-6'- (2, 2, 2-trifluoroethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-
4, 5'-pyrrolo [3, 4-b] pyridine] (71.0 mg, 0.23 mmol) , BrettPhos Pd G3 (24.0 mg, 0.026 mmol) and Cs2CO3 (136.0 mg, 0.42 mmol) in dioxane (5 mL) was degassed and purged with N2 for 3 times. Then, the mixture was stirred at 135 ℃ for 2 hrs under N2 atmosphere. After cooling to room temperature, the mixture was poured into H2O (20 mL) and extracted with DCM (30 mL*3) . The combined organic layers were washed with brine (60 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 10%) in dichloromethane to afford INT 69-1 (90.0 mg, 0.14 mmol, 65.9%yield) as a light yellow solid. LC-MS (ESI+) : 653.2 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 9.88 (s, 1H) , 8.74 (d, J = 8.0 Hz, 1H) , 8.41 (t, J = 8.0 Hz, 1H) , 8.17 (d, J = 8.0 Hz, 1H) , 7.88 -7.80 (m, 2H) , 7.55 (dd, J = 8.0, 4.0 Hz, 1H) , 7.03 -6.94 (m, 2H) , 4.76 (s, 2H) , 4.15 (s, 2H) , 3.89 (dd, J = 12.0, 4.0 Hz, 2H) , 3.81 (t, J = 12.0 Hz, 2H) , 3.63 -3.52 (m, 2H) , 1.95 (d, J = 8.0 Hz, 2H) , 1.58 -1.53 (m, 2H) , 1.52 (s, 9H) .
Step 2. 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -7- ( (6'- (2, 2, 2-trifluoroethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindolin-1-one
To a solution of tert-butyl 4- (7-fluoroimidazo [1, 2-a] pyridin-3-yl) -1-oxo-7- ( (6'- (2, 2, 2-trifluoroethyl) -2, 3, 5, 6, 6', 7'-hexahydrospiro [pyran-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) isoindoline-2-carboxylate (80.0 mg, 0.12 mmol) in DCM (6 mL) was added TFA (2 mL) dropwise. The mixture was stirred at 25 ℃ for 1 hr. After completion, the reaction mixture was diluted with DCM (20 mL) and H2O (10 mL) and then adjusted pH to 9 with Na2CO3 (s) , separated and the organic layer was washed with brine (10 mL) , dried over Na2SO4, filtered and concentrated to give a residue, which was purified by prep-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250mm, 5μm; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15 mL/min; gradient: 35-65%; Retention Time: 17.5 min of 25 min) to afford the title compound 69 (42.0 mg, 0.072 mmol, 58.9%yield) . LC-MS (ESI+) : 553.2 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 10.18 (s, 1H) , 8.85 (s, 1H) , 8.67 (d, J = 8.0 Hz, 1H) , 8.46 (t, J = 8.0 Hz, 1H) , 8.15 (d, J = 8.0 Hz, 1H) , 7.84 (s, 1H) , 7.75 (d, J = 8.0 Hz, 1H) , 7.53 (dd, J = 8.0, 4.0 Hz, 1H) , 6.98 (t, J = 8.0 Hz, 1H) , 6.86 (d, J = 8.0 Hz, 1H) , 4.41 (s, 2H) , 4.16 (s, 2H) , 3.91 (dd, J = 12.0, 4.0 Hz, 2H) , 3.82 (t, J = 12.0 Hz, 2H) , 3.58 (q, J = 12.0 Hz, 2H) , 1.95 (dt, J = 12.0, 4.0 Hz, 2H) , 1.54 (d, J = 12.0 Hz, 2H) .
Preparation of Example 72
Step 1. tert-butyl 2'-chloro-7'-oxo-6'- (2, 2, 2-trifluoroethyl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] -1-carboxylate
To a solution of tert-butyl 2'-chloro-7'-oxo-6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] -1-carboxylate (450.0 mg, 1.33 mmol) in THF (5 mL) was added NaH (160.0 mg, 4.00 mmol, 60%purity) at 0 ℃. After addition, and the mixture was stirred at 70 ℃ for 1 hr. After cooling down to 0 ℃, 2, 2, 2-trifluoroethyl trifluoromethanesulfonate (0.38 mL, 2.66 mmol) was added. The resulting mixture was stirred at 70 ℃ under N2 for 2.5 hrs. After cooling to room temperature, the mixture was poured into water (30 mL) and extracted with EtOAc (20 mL*3) . The combined organic layers were washed with brine (50 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 3%) in dichloromethane to afford INT 72-1 (201.0 mg, 0.48 mmol, 36.0%) as a yellow solid. LC-MS (ESI+) : m/z 419.9 [M+H] +
Step 2. 2'-chloro-6'- (2, 2, 2-trifluoroethyl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of INT 72-1 (380.0 mg, 0.91 mmol) in THF (4 mL) was added NaBH4 (171.0 mg, 4.53 mmol) at 0 ℃, followed by BF3*Et2O (1.61 mL, 6.34 mmol, 47%purity) dropwise. The resulting mixture was stirred at 30 ℃ for 7 hrs. After completion, the reaction mixture was quenched by addition of MeOH (5 mL) slowly at 25 ℃ and stirred for 0.5 hrs. After being concentrated, the residue was diluted with water (5 mL) and stirred for 20 mins. Then the mixture was basified to pH ~10 with solid Na2CO3 and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 7%) in dichloromethane to afford INT 72-2 (210.0 mg, 0.69 mmol, 76.0%) as a white solid. LC-MS (ESI+) : m/z 306.0 [M+H] + 1H NMR (400 MHz, DMSO-d6) δ 8.20 (d, J = 8.0 Hz, 1H) , 7.45 (d, J = 8.0 Hz, 1H) , 4.18 (s, 2H) , 3.57 -3.54 (m, 2H) , 3.26 -3.18 (m, 4H) , 2.11 -2.02 (td, J = 12.0, 4.0 Hz, 2H) , 1.79 (d, J = 12.0 Hz, 2H) .
Step 3. 2'-chloro-1- (oxetan-3-yl) -6'- (2, 2, 2-trifluoroethyl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of 2'-chloro-6'- (2, 2, 2-trifluoroethyl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine] (200.0 mg, 0.65 mmol) in MeOH (5 mL) were added AcOH (0.1 mL, 1.31 mmol) , oxetan-3-one (0.1 mL, 1.96 mmol) and NaBH3CN (119.0 mg, 1.89 mmol) . After addition, the resulting mixture was stirred at 40 ℃ for 3 hrs. After cooling to room temperature, the mixture was poured into H2O (30 mL) and extracted with DCM (40 mL*3) . The combined organic layers were washed with brine (40 mL) , dried over Na2SO4, filtered and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford INT 72-3 (150.0 mg, 0.42 mmol, 63.0%) as colorless oil. LC-MS (ESI+) : m/z 362.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.16 (d, J = 8.0 Hz, 1H) , 7.34 (d, J = 8.0 Hz, 1H) , 4.56 (t, J = 8.0 Hz, 2H) , 4.46 (t, J = 8.0 Hz, 2H) , 4.12 (s, 2H) , 3.64 -3.59 (m, 1H) , 3.55 (q, J = 8.0 Hz, 2H) , 2.69 (d, J = 12.0 Hz, 2H) , 2.30 -2.23 (m, 2H) , 1.91 (td, J = 12.0, 4.0 Hz, , 2H) , 1.58 (d, J = 12.0 Hz, , 2H) .
Step 4. 5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (1- (oxetan-3-yl) -6'- (2, 2, 2-trifluoroethyl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinonitrile
To a solution of 20-4 (50.0 mg, 0.18 mmol) in dioxane (3 mL) were added INT 72-3 (71.0 mg, 0.19 mmol) , BrettPhos Pd G3 (2.0 mg, 0.002 mmol) and Cs2CO3 (116.6 mg, 0.358 mmol) . The resulting mixture was degassed and purged with N2 for 3 times, then stirred at 135 ℃ under N2 for 2 hours. After cooling to room temperature, the mixture was poured into H2O (20 mL) and extracted with DCM (30 mL*3) . The combined organic layers were washed with brine (60 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 20%) in dichloromethane to afford INT 72-4 (60.0 mg, 0.099 mmol, 55.4%yield) as a light yellow solid. LC-MS (ESI+) : 605.0 m/z [M+H] +.
Step 5. 5-methoxy-6- (1-methyl-1H-benzo [d] imidazol-4-yl) -3- ( (1- (oxetan-3-yl) -6'- (2, 2, 2-trifluoroethyl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) picolinamide
To a solution of INT 72-4 (55.0 mg, 0.091 mmol) in DMSO (2 mL) were added K2CO3 (38.0 mg, 0.27 mmol) and H2O2 (0.04 mL, 1.819 mmol, 30%purity) . The resulting mixture was stirred at 25 ℃ for 1 hr. After completion, the reaction was poured into H2O (20 mL) and extracted with EtOAc (30 mL*3) . The combined organic layers were washed with brine (60 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by prep-HPLC (SHIMADZU LC-20AP, Column: YMC Triart C18, 20*250 mm, 5 um; Mobile Phase A: 0.1%NH4HCO3, B: ACN; flow rate: 15 mL/min; gradient: 30-60%; Retention Time: 20 min of 30 min) to afford the title compound 72 (1.5 mg, 0.002 mmol, 2.6%) yield) . LC-MS (ESI+) : 623.3 m/z [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.85 (s, 1H) , 9.02 (s, 1H) , 8.17 (s, 1H) , 8.06 (s, 1H) , 8.05 (s, 1H) , 7.66 (d, J = 4.0 Hz, 1H) , 7.61 (d, J = 8.0 Hz, 1H) , 7.44 (d, J = 8.0 Hz, 1H) , 7.35 (t, J = 8.0 Hz, 1H) , 6.82 (d, J = 8.0 Hz, 1H) , 4.59 (t, J = 8.0 Hz, 2H) , 4.49 (t, J = 8.0 Hz, 2H) , 4.16 (s, 2H) , 3.88 (s, 3H) , 3.82 (s, 3H) , 3.69 -3.62 (m, 1H) , 3.61 -3.48 (m, 2H) , 2.73 (d, J = 12.0 Hz, 2H) , 2.33 (t, J = 12.0 Hz, 2H) , 1.96 -1.91 (m, 2H) , 1.61 (d, J = 12.0 Hz, 2H) .
Preparation of Example 73
Step 1. 2'-chloro-6'-methyl-1- (2, 2, 2-trifluoroethyl) spiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one
To a solution of 2'-chloro-6'-methylspiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -7' (6'H) -one (500.0 mg, 1.99 mmol) in N, N-dimethylmethanamide (5 mL) were added CF3CH2OTf (553.0 mg, 2.38 mmol) and TEA (0.8 mL, 5.96 mmol) . The resulting mixture was degassed and purged with N2 for 3 times, stirred at 25 ℃ for 2 hrs under N2 atmosphere. After completion, the reaction mixture was poured into water (100 mL) and extracted with EtOAc (150 mL*2) . The combined organic layers were washed with brine (50 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 80%) in petroleum ether to afford INT 73-1 (165.0 mg, 0.49 mmol, 24.9%) as a yellow solid. LC-MS (ESI+) : m/z 333.9 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 8.63 (d, J = 8.0 Hz, 1H) , 7.68 (d, J = 8.0 Hz, 1H) , 3.44 -3.89 (m, 2H) , 3.05 -3.02 (m, 2H) , 3.01 -2.97 (m, 5H) , 2.34 -2.20 (m, 2H) , 1.37 (d, J =12.0 Hz, 2H) .
Step 2. 2'-chloro-6'-methyl-1- (2, 2, 2-trifluoroethyl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridine]
To a solution of INT 73-1 (140.0 mg, 0.42 mmol) in THF (5 mL) were added NaBH4 (79.0 mg, 2.10 mmol) and ethoxyethane trifluoroborane (0.8 mL, 2.94 mmol, 47%purity) slowly at 0 ℃. The resulting mixture was stirred at 30 ℃ under N2 for 12 hrs. After completion, the reaction was quenched with 50 mL of MeOH at 0 ℃ and stirred at 20 ℃ for 0.5 hrs. After being concentrated, the residue was diluted with 10 mL of water and stirred at 20 ℃ for 1 hr. The mixture was adjusted pH to 9 and extracted with DCM (50 mL*3) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford INT 73-2 (80.0 mg, 0.24 mmol, 56.6%) as yellow oil. LC-MS (ESI+) : m/z 320.3 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ
8.09 (d, J = 8.0 Hz, 1H) , 7.32 (d, J = 8.0 Hz, 1H) , 3.87 (s, 2H) , 3.30 -3.26 (m, 2H) , 2.91 -2.77 (m, 4H) , 2.38 (s, 3H) , 1.98 -1.88 (m, 2H) , 1.49 (d, J = 12.0 Hz, 2H) .
Step 3. 5-methoxy-3- ( (6'-methyl-1- (2, 2, 2-trifluoroethyl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinonitrile
To a solution of INT 20-4 (48.0 mg, 0.17 mmol) in dioxane (3 mL) were added INT 73-2 (55.0 mg, 0.17 mmol) , XantPhos (15.0 mg, 0.026 mmol) , Cs2CO3 (168.0 mg, 0.52 mmol) and Pd2 (dba) 3 (16.0 mg, 0.017 mmol) . The resulting mixture was degassed and purged with N2 for 3 times, stirred at 135 ℃under N2 for 2 hrs. After cooling to room temperature, the resulting mixture was poured into water (20 mL) and extracted with EtOAc (30 mL*2) . The combined organic layers were washed with brine (20 mL) , dried over Na2SO4, filtered, and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 15%) in dichloromethane to afford INT 73-3 (40.0 mg, 0.071 mmol, 41.4%) as a black solid. LC-MS (ESI+) : m/z 563.0 [M+H] +.
Step 4. 5-methoxy-3- ( (6'-methyl-1- (2, 2, 2-trifluoroethyl) -6', 7'-dihydrospiro [piperidine-4, 5'-pyrrolo [3, 4-b] pyridin] -2'-yl) amino) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) picolinamide
To a mixture of INT 73-3 (30.0 mg, 0.056 mmol) in DMSO (3 mL) were added hydrogen peroxide (80.6 mg, 0.711 mmol, 30%purity) and K2CO3 (30.0 mg, 0.21 mmol) . The resulting mixture was stirred at 20 ℃ for 0.5 hr. After completion, the mixture was poured into water (20 mL) and extracted with DCM (25 mL*3) . The combined organic layers were washed with water (10 mL*2) , followed by brine (10 mL) , dried over Na2SO4, filtered and concentrated under reduced pressure to give a residue, which was purified by pre-TLC with (SiO2, DCM: MeOH = 10: 1, v/v) and further purified by prep-HPLC (SHIMADZU LC-20AP, Column: Welch XB-C18, 20*250 mm, 10 um; Mobile Phase A: 0.1%NH4HCO3, B: ACN ; flow rate: 20 mL/min; gradient: 27-47%; Retention Time: 12 min of 20 min) to afford the title compound 73 (0.5 mg) . LC-MS (ESI+) : m/z 581.4 [M+H] +. 1H NMR (400 MHz, DMSO-d6) δ 11.78 (s, 1H) , 9.02 (s, 1H) , 8.15 (s, 1H) , 8.04 (s, 1H) , 8.00 (d, J = 8.0 Hz, 1H) , 7.63 (s, 1H) , 7.59 (d, J = 8.0 Hz, 1H) , 7.43 (d, J = 8.0 Hz, 1H) , 7.33 (t, J = 8.0 Hz, 1H) , 6.79 (d, J = 8.0 Hz, 1H) , 3.91 (s, 2H) , 3.87 (s, 3H) , 3.80 (s, 3H) , 3.29 -3.25 (m, 2H) , 2.96 -2.83 (m, 4H) , 2.42 (s, 3H) , 2.00 -1.90 (m, 2H) , 1.50 (d, J = 12.0 Hz, 2H) .
Preparation of Example 74
Step 1. methyl 5-bromo-2- (bromomethyl) benzoate
To a solution of methyl 5-bromo-2-methylbenzoate (37.30 g, 0.16 mol) , NBS (43.50 g, 0.24 mol) in MeCN (560 mL) was added AIBN (2.67 g, 16.28 mmol) . After addition, the mixture was degassed and purged with N2 for 3 times and stirred at 90 ℃ for 20 hrs. After cooling to room temperature, the mixture was concentrated under reduced pressure to give a residue, which was diluted with water (500 mL) . The mixture was extracted with EtOAc (250 mL*3) . The combined organic layers were washed with water (100 mL*2) , followed by brine (100 mL) , dried over Na2SO4, filtered and concentrated under reduced pressure to afford the INT74-1 (56.30 g, crude) as a yellow semi-solid and used for next step directly without purification.
LC-MS (ESI+) : m/z 227.1 [M+H-HBr] +
Step 2. 6-bromo-2-methylisoindolin-1-one
To a solution of INT74-1 (56.30 g, 73.10 mmol, 40%purity) in THF (730 ml) were added DIEA (38.0 ml, 0.22 mol) and methanamine (30%in EtOH, 14.6 mL, 0.11 mol) . The resulting mixture was stirred at 20 ℃ for 2 hrs. After completion, the mixture was concentrated under reduced pressure to give a residue, which was diluted with water (500 mL) and extracted with DCM (500 mL*3) . The combined organic layers were washed with water (100 mL*2) , followed by brine (100 mL) , dried over Na2SO4, filtered and concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 50%) in petroleum ether to afford INT74-2 (11.40 g, 48.40 mmol, 66.2%yield) as a yellow solid. LC-MS (ESI+) : m/z 226.1 [M+H] +
Step 3. 6-bromo-3, 3-bis (2- ( (tert-butyldimethylsilyl) oxy) ethyl) -2-methylisoindolin-1-one
To a solution of INT74-2 (11.40 g, 50.40 mmol) in DMF (170 mL) was added NaH (6.05 g, 0.15 mol, 60%purity) in portions at 0 ℃. After addition, the mixture was stirred at 20 ℃ for 0.5 hr, then (2-bromoethoxy) (tert-butyl) dimethylsilane (32.5 ml, 0.15 mol) was added dropwise at 0 ℃. After addition, the mixture was stirred at 20 ℃ under N2 for 1 hr and quenched by 800 mL of water. The mixture was extracted with EtOAc (500 mL*3) . The combined organic layers were washed with water (500 mL*2) , followed by brine (500 mL) , dried over Na2SO4, filtered and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with ethyl acetate (from 0%to 5%) in petroleum ether to afford INT74-3 (13.20 g, 19.46 mmol, 38.6%yield) as a yellow solid. LC-MS (ESI+) : m/z 542.2 [M+H] + 1H NMR (400 MHz, CDCl3) δ 7.94 (d, J = 4.0 Hz, 1H) , 7.64 (dd, J = 8.0, 4.0 Hz, 1H) , 7.26 (d, J = 8.0 Hz, 1H ) , 3.19 -3.09 (m, 2H) , 3.05 -2.99 (m, 2H) , 2.97 (s, 3H) , 2.17 (t, J = 8.0 Hz, 4H) , 0.76 (s, 18H) , 0.00 (d, J = 16.0 Hz, 12H) .
Step 4. 6-bromo-3, 3-bis (2-hydroxyethyl) -2-methylisoindolin-1-one
To a solution of INT74-3 (13.20 g, 24.32 mmol) in EtOAc (120 mL) was added a solution of HCl (4 M in EtOAc, 60.8 mL, 0.24 mol) . The mixture was stirred at 20 ℃ for 40 mins. After completion, the reaction mixture was concentrated under reduced pressure to give a residue, which was diluted with EtOAc (200 mL) and concentrated under reduced pressure, repeated this process for four times to give a residue. After being triturated with MTBE (30 mL) at 20 ℃ for 20 mins, the solid was filtered. The cake was washed with MTBE (5 mL*3) and dried on vacuum to afford INT74-4 (7.40 g, 23.55 mmol, 97.0%yield) as a white solid. LC-MS (ESI+) : m/z 314.2 [M+H] +
Step 5. (5-bromo-2-methyl-3-oxoisoindoline-1, 1-diyl) bis (ethane-2, 1-diyl) dimethanesulfonate
To a solution of INT74-4 (7.40 g, 23.55 mmol) in DCM (74 mL) were added TEA (19.6 mL, 0.14 mol) and MsCl (5.5 ml, 70.70 mmol) at 0 ℃. The resulting mixture was stirred at 20 ℃ for 0.5 hr. After completion, the reaction was quenched by addition H2O (200 mL) at 0 ℃ and extracted with DCM (200 mL*2) . The combined organic layers were washed with brine (200 mL) , dried over Na2SO4, filtered and concentrated under reduced pressure to afford INT74-5 (10.40 g, crude) as a white solid, which was used in next step directly. LC-MS (ESI+) : m/z 470.1 [M+H] +
Step 6. 5-bromo-2-methylspiro [isoindoline-1, 4'-piperidin] -3-one
A solution of INT74-5 (10.40 g, 22.11 mmol) in NH3 solution (100 mL, 7 M in MeOH) was stirred at 80 ℃ for 16 hrs in autoclave. After cooling to room temperature, the mixture was concentrated under reduced pressure to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford INT74-6 (11.00 g, 37.3 mmol, 99.0%yield) as a white solid. LC-MS (ESI+) : m/z 295.2 [M+H] + 1H NMR (400 MHz, DMSO-d6) δ 8.10 (d, J = 8.0 Hz, 1H) , 7.87 (d, J = 4.0 Hz, 1H) , 7.83 (dd, J = 8.0, 4.0 Hz, 1H) , 3.53 -3.46 (m, 4H) , 2.98 (s, 3H) , 2.49 -2.43 (m, 2H) , 1.59 (d, J = 12.0 Hz, 2H) .
Step 7. 5-bromo-2-methylspiro [isoindoline-1, 4'-piperidine]
To a solution of INT74-6 (5.00 g, 16.94 mmol) in THF (10 mL) was added BH3 (339.0 mL, 339.0 mmol, 1 M in THF) at 0 ℃. The resulting mixture was stirred at 70 ℃ for 20 hrs under N2
atmosphere. After cooling to room temperature, the reaction was quenched by MeOH (1000 mL) at 20 ℃and stirred for 0.5 hr. The mixture was concentrated under reduced pressure to give a residue, which was diluted with 100 mL of water and acidified by HCl (aq, 4 M) to pH~2. The resulting mixture was stirred at room temperature for 0.5 hr and concentrated under reduced pressure to give a residue. After being triturated with solvent (DCM: MeOH = 5: 1, 100 mL) , the mixture was filtered and the cake was washed with this solvent (30 mL*2) . The combined organic layers were concentrated to afford INT74-7 (6.70 g, 23.83 mmol, 71.5%yield) as a white solid. LC-MS (ESI+) : m/z 281.2 [M+H] +.
Step 8. 5-bromo-2-methyl-1'- (oxetan-3-yl) spiro [isoindoline-1, 4'-piperidine]
To a solution of INT74-7 (6.60 g, 23.47 mmol) and oxetan-3-one (4.2 mL, 70.50 mmol) in MeOH (130 mL) were added AcOH (1.4 mL, 23.50 mmol) and sodium cyanoborohydride (4.42 g, 70.40 mmol) . The mixture was stirred at 40 ℃ for 1 hr. After cooling to room temperature, the reaction was poured into 500 mL of water, extracted with EtOAc (200 mL*4) . The combined organic layers were washed with brine (300 mL) , dried over Na2SO4, filtered and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford INT74-8 (4.50 g, 13.34 mmol, 56.8%yield) as a white solid. LC-MS (ESI+) : m/z 337.2 [M+H] + 1H NMR (400 MHz, DMSO-d6) δ 7.51 (d, J = 8.0 Hz, 1H) , 7.47 (d, J = 4.0 Hz, 1H) , 7.36 (dd, J = 8.0, 4.0 Hz, 1H) , 4.55 (t, J = 8.0 Hz, 2H) , 4.45 (t, J = 8.0 Hz, 2H) , 3.85 (s, 2H) , 3.54 (p, J = 8.0 Hz, 1H) , 2.60 -2.52 (m, 2H) , 2.40 -2.29 (m, 5H) , 1.95 -1.82 (m, 2H) , 1.48 (d, J = 12.0 Hz, 2H) .
Step 9. methyl 5-cyclopropyl-3- ( (2-methyl-1'- (oxetan-3-yl) spiro [isoindoline-1, 4'-piperidin] -5-yl) amino) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) pyrazine-2-carboxylate
To a mixture of methyl 3-amino-5-cyclopropyl-6- (1-methyl-1H-benzo [d] imidazol-4-yl) pyrazine-2-carboxylate (300.0 mg, 0.93 mmol, WO2023001794A1) and INT74-8 (360.0 mg, 1.07 mmol) in tert-Amyl-OH (12 ml) were added K2CO3 (180.0 mg, 1.30 mmol) and Brettphos Pd G3 (60.0 mg, 0.066 mmol) . After addition, the mxiture was degassed and purged with N2 for 3 times, and then stirred at 100 ℃ under N2 for 2 hrs. After cooling to room temperature, the reaction mixture was poured into 20 mL of water and extracted with DCM (30 mL*3) . The combined organic layers were washed with brine (30 mL) , dried over Na2SO4, filtered and concentrated to give a residue, which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford INT74-9 (200.0 mg, 0.35 mmol, 37.2%yield) as a yellow solid. LC-MS (ESI+) : m/z 580.4 [M+H] +
1H NMR (400 MHz, DMSO-d6) δ 10.13 (s, 1H) , 8.24 (s, 1H) , 7.71 (d, J = 8.0 Hz, 1H) , 7.67 (brs, 1H) , 7.60 (brd, J = 8.0 Hz, 1H) , 7.49 (brd, J = 8.0 Hz, 1H) , 7.43 (t, J = 8.0 Hz, 1H) , 7.32 (d, J = 8.0 Hz, 1H) , 4.59 (t, J = 8.0 Hz, 2H) , 4.49 (t, J = 8.0 Hz, 2H) , 3.97 (brs, 2H) , 3.91 (s, 3H) , 3.89 (s, 3H) , 3.62 (t, J = 8.0 Hz, 1H) , 2.70 -2.60 (m, 2H) , 2.48 -2.37 (m, 5H) , 2.06 -1.84 (m, 3H) , 1.56 (d, J = 12.0 Hz, 2H) , 1.11 -1.04 (m, 2H) , 0.97-0.90 (m, 2H) .
Step 10. 5-cyclopropyl-3- ( (2-methyl-1'- (oxetan-3-yl) spiro [isoindoline-1, 4'-piperidin] -5-yl) amino) -6- (1-methyl-1H-benzo [d] imidazol-4-yl) pyrazine-2-carboxamide
A solution of INT74-9 (100.0 mg, 0.17 mmol) in NH3 (12 mL, 7 M in MeOH) was stirred at 80 ℃ for 5 hrs in a sealed tube. After cooling to room temperature, the reaction was concentrated to give
a residue, which was purified by which was purified by column chromatography on silica gel eluting with methanol (from 0%to 5%) in dichloromethane to afford compound 74 (74.0 mg, 0.13 mmol, 38.1%yield) as a light-yellow solid. LC-MS (ESI+) : m/z 565.4 [M+H] + 1H NMR (400 MHz, DMSO-d6) δ 11.33 (s, 1H) , 8.24 (s, 1H) , 8.07 -8.00 (s, 1H) , 7.86 (s, 1H) , 7.71 -7.63 (m, 2H) , 7.59 (brd, J = 8.0 Hz, 1H) , 7.51 (brd, J = 8.0 Hz, 1H) , 7.42 (d, J = 4.0 Hz, 1H) , 7.41 (s, 1H) , 4.58 (t, J = 8.0 Hz, 2H) , 4.48 (t, J = 8.0 Hz, 2H) , 3.98 (brs, 2H) , 3.90 (s, 3H) , 3.63 (brs, 1H) , 2.69 -2.60 (m, 2H) , 2.50 -2.35 (m, 5H) , 2.04 -1.89 (m, 3H) , 1.60 (brs, 2H) , 1.13 -1.04 (p, J = 3.8 Hz, 2H) , 0.97 -0.87 (m, 2H) .
The following compounds of examples 75-76 were prepared using a synthesis method similar to that describe in example 74.
Example A: Biological Assay
Kinase reaction
1) Prepared 2x kinase solution
1. Prepared a solution of HPK1 in 1x kinase buffer at 2-fold the final concentration of each reagent in the assay.
2. Added 5 μl of kinase solution to each well of the assay plate, except for control wells without enzyme (added 5 μl of 1x kinase buffer instead) .
3. Shook the plate. Incubated at room temperature for 10 min.
2) Prepared 2x substrate solution
1. Prepared substrate solution of Fluorescein-PKC and ATP in 1x kinase reaction buffer at 2-fold of the final concentration of each reagent desired in the assay.
2. Added 5 μl of substrate solution to each well of the assay plate to start reaction.
3. Shook the plate.
3) Kinase reaction
Covered the assay plate and incubate at room temperature for 90 minutes.
2. Kinase detection
1) Prepared detection solution of 2-fold of final concentration in Antibody Dilution Buffer.
2) Added 10 μl of detection solution to each well of the assay plate to stop the reaction.
3) Mixed briefly with centrifuge and incubated at room temperature 60 minutes before reading on a plate reader for fluorescence.
3. Data reading
Collected data on Envision with excitation at 340nm and emission at 520 nm and 495 nm.
4. Curve fitting
1. Copied values of RFU from Envision program.
2. Calculated Ratio of RFU 520nm /RFU 495nm
3. Converted Ratio values to percent inhibition values.
Percent inhibition = (max-sample Ratio) / (max-min) *100.
“min” means the Ratio of no enzyme control and “max” means the Ratio of DMSO control.
4. Data was presented in MS Excel and the curves fitted by XLFit excel add-in version 5.4.0.
IC50 calculation equation is: Y=Bottom + (Top-Bottom) / (1+ (IC50/X) ^HillSlope
The data for Example A is shown in Table 3.
TABLE 3
HPK1 IC50 (nM) : 0<A≤100; 100<B≤500; 500<C≤5000; D>5000
HPK1 vs GLK selectivity: + means <10 folds, ++ means 10-30 folds, +++ means >30 folds
NT: not tested
Example B: Evaluation compound induced phospho-SLP76 (Ser376) inhibition on PBMCs
1. Seed cells into Corning 384-well white microplate (corning, Cat#3765)
1) Cell media were pre-warmed to 37℃ in water bath.
2) Thaw cells and observed cells under microscope to observe cell state.
3) Mix cell sufficient and to aliquot ~20 μL of the cells suspension to count cells. Count cells by adding 20 μL cell suspension to 20 μL dye with Cell Counter Star, record live cell number and viability.
4) According to the calculated cell density, aliquot required cell volume to centrifuge for 5min at 1000rpm.
5) Re-suspension the cell with starvation medium and to adjust the volume of the suspension to achieve a cell concentration of 1*10^7 cells/mL (160000cells/16μL) .
6) Transfer 16μL of the cell suspension to well of 384 well plate (corning, Cat#3765) .
2. Compounds preparation and cell treatment
1) Solid compounds are solubilized in 100%DMSO to a stock solution of 10mM. Prepare 5-fold diluted compounds in 1.5 mL EP tube by adding 16 μL DMSO and 4 μL compound stock solution, so the first concentration of each compound before dilution with medium is 2000 μM.
2) Prepare compounds with 3-fold serial dilution in LDV-plate by Bravo. Then 600 nl compound DMSO solutions were transferred to 384 compound plate (Greiner, 781201) . Add 19.4 μl starvation medium. Shake the plate for 5 min to mix thoroughly.
3) Aliquot 4 μl compounds dilution solution freshly prepared to the appropriate cell well according to the assay map which contains the 16 μL cell suspension. Then put the cell plate in cell incubator at 37℃ 5%CO2 for 4h. The compound top concentration is 10 μM. Making high/low control wells with 0.5%DMSO.
3. Cell were stimulated by purified anti-human CD3 antibody and anti-human CD28 antibody
1) 6X anti-human CD3 antibody preparation: anti-human CD3 antibody stock was 1000 μg/ml, dilute it 16.67X with starvation medium to 60ug/ml as the 6X anti-human CD3 antibody mixture.
6X anti-human CD28 antibody preparation: anti-human CD28 antibody stock was 1000 μg/ml, dilute it 16.67X with starvation medium to 60ug/ml as the 6X anti-human CD28 antibody mixture.
2) After 4 h compounds pre-incubation, 4 μL of 6X purified anti-human CD3 and CD28 antibody were added into compound treated wells and high control wells. Adding starvation medium only to low control wells. Put the plate in cell incubator at 37℃ 5%CO2 for 25min, so the final concentration of anti-human CD3 and CD28 antibody was 10ug/ml.
3) After 25 min, 8 μl 4X lysis buffer were added into the test wells, centrifuge the plate for 1min at 1000rpm, then put the plate at 25℃ incubator for 90 min under shaking at 350rpm.
4. Add detection
1) After 90 min, cell lysates were mixed and transferred to 384 white assay plate, 16 μl/well (Greiner, 784075) by Bravo.
2) Add 4ul of premixed antibody working solutions (vol/vol) prepared in the detection buffer into test and centrifuged plate for 5min at 1000rpm.
3) Cover the plate with a plate sealer. Incubate overnight at room temperature.
4) Set up envision reader for Eu3+ Cryptate and read the fluorescence emission at two different wavelengths (665nm and 620nm) .
Conclusion: Some compounds can potently induce phospho-SLP76 (Ser376) inhibition on PBMCs.
Example C: Pan-T cell cytokine (IFN-γ and IL-2) and viability assay
Coat plate: dilute anti-CD3 with PBS to 1ug/ml, then add 50 μl/well to 96 well plate. Seal the plate and put it @4 ℃ overnight.
Procedures for CD3+ T cells seeding:
1. Seeding cells in 96-well plate
1) Harvest cells by centrifuge and discard the cell growth medium.
2) Re-suspend cells with culture medium. Determine cell density on Cell Countess.
3) Calculate the total number of cells needed for the assay using the appropriate concentration of cells per ml. Distribute 1*106 cells/mL (100 μL/well) .
4) Dilute cell suspension with the appropriate volume of Cell Culture Media.
5) Dispense the cell suspension into a sterile, disposable reservoir.
6) Wash plate with 100 μl PBS per well once
7) Transfer 100 μL (100k cells/well) of the cell suspension into each well of every 96-well plate.
8) Add 50 μl 4X anti-CD28 (final conc. was 1 μg/ml) to cell plate wells
9) Add 50 μl 4X compound to cell plate wells.
10) Place plates in a humidified air, 5%CO2 incubator at 37℃ for 72 hours. 11) After 72 hours incubation, collect 120 μL/well supernatant and then perform IL-2, IFNγ ELISA and CTG assay.
Conclusion: Some compounds can induce IL-2 and IFNγ secretion.
Example D: Reversal of PGE-2 mediated T cell inhibition
Coat plate: dilute anti-CD3 with PBS to 1 μg/ml, then add 50 μl/well to 96 well plate. Seal the plate and put it @4 ℃ overnight.
Procedures for CD3+ T cells seeding.
1. Seeding cells in 96-well plate (without anti-CD3)
1) Harvest cells by centrifuge and discard the cell growth medium.
2) Re-suspend cells with culture medium. Determine cell density on Cell Countess.
3) Calculate the total number of cells needed for the assay using the appropriate concentration of cells per ml. Distribute 1*106 cells/mL (100 μL/well) .
4) Transfer 100 μL (100k cells/well) of the cell suspension into each well of every 96-well plate.
5) Add 50 μL 4x compounds and 50μL 4x PGE2 or NECA into each well.
6) Place plates in a humidified air, 5%CO2 incubator at 37℃ for 1 hours.
7) Wash plate with 100 μl PBS per well once.
8) Transfer 190 μL (100k cells/well) of the cell suspension into each well of every 96-well plate (coating anti-CD3) .
9) Add 10 μl 20X anti-CD28 (final conc. was 1 μg/ml) to cell plate wells.
10) Place plates in a humidified air, 5%CO2 incubator at 37℃ for 72 hours.
11) After 72 hours incubation, collect 120 μL/well supernatant and then perform IL-2, IFNγELISA and CTG assay.
Conclusion: Some compounds can reverse PGE-2 mediated T cell inhibition and further boosted IL-2 and IFNγ secretion.
Example E: PBMC (B cell, T cell, monocyte) viability study
Day 1: Cell seeding
1. Spin down suspension cells and resuspend in growth medium, then count with cell counter.
2. Dilute cell suspensions in growth medium to desired density.
3. The cell suspensions of 190 μL were taken to 96-well plate.
4. Add 10 μL 20× compounds to the into 96-well plate according to the plate map. Final DMSO concentration in each well is 0.2%.
5. Incubate at 37℃, 5%CO2 for 24h.
Day 2: Measurement
1. transfer cells to 96-deep well plate.
2. Wash with 1 ml PBS, 3 times wash.
3. Add BV421-CD45, APC-CD3, FITC-CD19, PE-CD14 and live/dead dye (1: 100 antibody buffer: PBS with 0.2%BSA) , 100 μl/well, Incubate 30 min at RT.
4. Wash with 1 mL wash buffer (PBS with 0.1%BSA+1mM EDTA) , 2 times
5. resuspended with 200 μl of PBS.
6. Analysis by CytoFLEX S
7. data analysis by flowjo.
Conclusion: Some compounds have no toxicity to B cell, T cell and Monocyte viability.
Example F: Monocyte-derived DC activation assay
Day 0
1. Prepare fresh PBMC and adjust the density of PBMCs into 4e7/mL, isolate monocytes by using EasySep Human Monocyte Isolation Kit.
2. Re-suspend monocytes with RPMI1640 Complete Medium (RPMI1640 supplemented with 10%HI-FBS, 1%P. S. and 55 μM 2-Mercaptoethanol) at the density of 1e6/mL.
QC. Confirm the purity of CD14+ monocyte by staining with APC Mouse anti-human CD14 (BioLegend#301808) and perform FACS analysis.
QC. CD80/CD83/CD86 expression measurement via flow.
3. Seed 22 mL of monocytes into 150 mm cell culture dish (2 dishes) in the presence of 100 ng/mL hGM-CSF and 200 ng/mL hIL-4 at 37 degree incubator for 7 days.
Day 3
1. At day 3, refresh half of culture medium containing 100 ng/mL hGM-CSF and 200 ng/mL hIL-4.
Day 7
1. At day 7, collect immature DCs and wash cells once, and then resuspend with RPMI1640 Complete Medium at density of 1e6 cells/mL.
QC. Collect 100 μL (1e5) of DCs, stain cells with PE anti-CD80, APC anti-CD83, and BV605 anti-CD86, and then perform FACS.
2. Dispense 1e5 cells (100 μL) to each well of 96-well plate, treat with 4*test articles (50 μL) for 1h at 37 degree incubator.
3. Add 100 ng/mL LPS and 1000 IU/mL IFN-γ into plate 1, and incubate for 24h at 37 degree incubator.
4. Add 20 ng/mL TNF-α, 10 ng/mL IL-1β, 25 ng/mL IL-6 and 5 μM PGE-2 into plate 2, and incubate for 48h at 37 degree incubator.
Day 8
1. After incubation for 24h, collect cells and stain cells with FVS780, PE anti-CD80, APC anti-CD83, and BV605 anti-CD86 and then perform FACS.
Day 9
2. After incubation for 48h, collect cells and stain cells with FVS780, PE anti-CD80, APC anti-CD83, and BV605 anti-CD86 and then perform FACS.
Conclusion: Some compounds can activate DC function.
Claims (67)
- A compound of Formula (I) , or a pharmaceutically acceptable salt thereof:
wherein:Ring A is cycloalkyl or heterocycloalkyl;each R1 is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;or two R1 on the same atom are taken together to form an oxo;n is 0, 1, 2, 3, 4, 5, or 6;W is -NRW1-, -C (RW2) 2-, or -C (=O) -;RW1 is hydrogen, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RW1a;each RW1a is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;or two RW1a on the same atom are taken together to form an oxo;each RW2 are independently hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;Y is -NRY1-, -C (RY2) 2-, or -C (=O) -;RY1 is hydrogen, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RY1a;each RY1a is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;or two RY1a on the same atom are taken together to form an oxo;each RY2 are independently hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;Z1 is N or CRZ1;RZ1 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;Z2 is N or CRZ2;RZ2 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;Z3 is N or CRZ3;RZ3 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;L is -O-, -S-, or -NR2-;R2 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;X1 is N or CRX1;RX1 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;X2 is N or CRX2;RX2 is hydrogen, halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX2a;each RX2a is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;or two RX2a on the same atom are taken together to form an oxo;X3 is N or CRX3;RX3 is hydrogen, halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX3a;each RX3a is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;or two RX3a on the same atom are taken together to form an oxo;X4 is N or CRX4;RX4 is hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;R3 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;R4 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;or RX4 and R4 are taken together to form a heterocycloalkyl or a heteroaryl; each optionally substituted with one or more R5;each R5 is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl;or two R5 on the same atom are taken together to form an oxo;each Ra is independently C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C1- C6alkylene (cycloalkyl) , C1-C6alkylene (heterocycloalkyl) , C1-C6alkylene (aryl) , or C1-C6alkylene (heteroaryl) , wherein each alkyl, alkylene, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;each Rb is independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C1-C6alkylene (cycloalkyl) , C1-C6alkylene (heterocycloalkyl) , C1-C6alkylene (aryl) , or C1-C6alkylene (heteroaryl) , wherein each alkyl, alkylene, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;Rc and Rd are each independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C1-C6alkylene (cycloalkyl) , C1-C6alkylene (heterocycloalkyl) , C1-C6alkylene (aryl) , or C1-C6alkylene (heteroaryl) , wherein each alkyl, alkylene, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;or Rc and Rd are taken together with the atom to which they are attached to form a heterocycloalkyl optionally substituted with one or more R; andeach R is independently halogen, -CN, -OH, -SH, -OCF3, -OCClF2, -SF3, -SF5, -SCF3, -SCClF2, -S (=O) C1-C3alkyl, -S (=O) 2C1-C3alkyl, -S (=O) 2NH2, -S (=O) 2NHC1-C3alkyl, -S (=O) 2N (C1-C3alkyl) 2, -NH2, -NHC1-C3alkyl, -N (C1-C3alkyl) 2, -P (=O) (C1-C3alkyl) N (C1-C3alkyl) 2, -P (=O) (C1-C3alkyl) O (C1-C3alkyl) , -P (=O) (C1-C3alkyl) 2, -C (=O) C1-C3alkyl, -C (=O) OH, -C (=O) OC1-C3alkyl, -C (=O) NH2, -C (=O) NHC1-C3alkyl, -C (=O) N (C1-C3alkyl) 2, C1-C6alkyl, C1-C6alkoxy, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, or C3-C6cycloalkyl;or two R on the same atom form an oxo;or two R on the same carbon are taken together to form a cycloalkyl or heterocycloalkyl;or two R on the different atoms are taken together to form a cycloalkyl, heterocycloalkyl, aryl, or heteroaryl;provided that the compound is not - The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein RX4 and R4 are taken together to form a 4-to 6-membered heterocycloalkyl or a 5-or 6-membered heteroaryl; each optionally substituted with one or more R5.
- The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein the compound is of Formula (II) :
wherein:L1 is -C (R6) 2-, -NR7-, -C (R6) 2-C (R6) 2-, -C (R6) 2-NR7-, -NR7-C (R6) 2-, -C (R6) =C (R6) -, -C (R6) =N-, -N=C (R6) -, or -N=N-;each R6 is independently hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl; andR7 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl. - The compound of claim 1 or 3, or a pharmaceutically acceptable salt thereof, wherein the compound is of Formula (IIa) , (IIb) , (IIc) , or (IId) :
- The compound of any one of claims 1-4, or a pharmaceutically acceptable salt thereof, wherein X3 is N.
- The compound of any one of claims 1-4, or a pharmaceutically acceptable salt thereof, wherein X3 is CRX3.
- The compound of any one of claims 1-4 or 6, or a pharmaceutically acceptable salt thereof, wherein RX3 is cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX3a.
- The compound of any one of claims 1-4 or 6, or a pharmaceutically acceptable salt thereof, wherein RX3 is 5-or 6-membered cycloalkyl optionally substituted with one or more RX3a.
- The compound of any one of claims 1-4 or 6, or a pharmaceutically acceptable salt thereof, wherein RX3 is 5-or 6-membered heterocycloalkyl optionally substituted with one or more RX3a.
- The compound of any one of claims 1-4 or 6, or a pharmaceutically acceptable salt thereof, wherein RX3 is 6-to 10-membered aryl optionally substituted with one or more RX3a.
- The compound of any one of claims 1-4 or 6, or a pharmaceutically acceptable salt thereof, wherein RX3 is 5-to 9-membered heteroaryl substituted with one or more RX3a.
- The compound of any one of claims 1-4 or 6, or a pharmaceutically acceptable salt thereof, wherein each RX3a is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl.
- The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein the compound is of Formula (III) :
wherein:Ring B is cycloalkyl, heterocycloalkyl, aryl, or heteroaryl;each R8 is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , -C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;m is 0, 1, 2, 3, or 4;L1 is -C (R6) 2-, -NR7-, -C (R6) 2-C (R6) 2-, -C (R6) 2-NR7-, -NR7-C (R6) 2-, -C (R6) =C (R6) -, -C (R6) =N-, -N=C (R6) -, or -N=N-;each R6 is independently hydrogen, halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl; andR7 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, cycloalkyl, or heterocycloalkyl. - The compound of claim 1 or 13, or a pharmaceutically acceptable salt thereof, wherein the compound is of Formula (IIIa) , (IIIb) , (IIIc) , or (IIId) :
- The compound of claim 13 or 14, or a pharmaceutically acceptable salt thereof, wherein Ring B is 5-or 6-membered cycloalkyl, 5-or 6-membered heterocycloalkyl 6-to 10-membered aryl, or 5-to 9-membered heteroaryl.
- The compound of any one of claims 13-15, or a pharmaceutically acceptable salt thereof, wherein each R8 is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl.
- The compound of any one of claims 1-16, or a pharmaceutically acceptable salt thereof, wherein each R6 is independently hydrogen, halogen, C1-C6alkyl, or C1-C6haloalkyl.
- The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R4 is hydrogen or C1-C6alkyl.
- The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein the compound is of Formula (IV) :
- The compound of claim 19, or a pharmaceutically acceptable salt thereof, wherein X3 is N or CRX3.
- The compound of claims 19 or 20, or a pharmaceutically acceptable salt thereof, wherein RX3 is cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein the cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX3a.
- The compound of any one of claims 19-21, or a pharmaceutically acceptable salt thereof, wherein RX3 is 5-or 6-membered cycloalkyl, 5-or 6-membered heterocycloalkyl, 6-to 10-membered aryl, or 5-to 9-membered heteroaryl; wherein the cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX3a.
- The compound of any one of claims 19-22, or a pharmaceutically acceptable salt thereof, wherein each RX3a is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, C1-C6alkyl, or C1-C6haloalkyl.
- The compound of claim 1 or 23, or a pharmaceutically acceptable salt thereof, wherein the compound is of Formula (IVa) :
wherein:Ring B is cycloalkyl, heterocycloalkyl, aryl, or heteroaryl;each R8 is independently halogen, -CN, -NO2, -OH, -ORa, -OC (=O) Ra, -OC (=O) ORb, -OC (=O) NRcRd, -SH, -SRa, -SF3, -SF5, -S (=O) Ra, -S (=O) 2Ra, -S (=O) 2NRcRd, -NRcRd, -NRbC (=O) NRcRd, -NRbC (=O) Ra, -NRbC (=O) ORb, -NRbS (=O) 2Ra, -P (=O) RaNRcRd, -P (=O) RaORb, -P (=O) RaRb , - C (=O) Ra, -C (=O) ORb, -C (=O) NRcRd, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, C2-C6alkenyl, C2-C6alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; wherein each alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more R;m is 0, 1, 2, 3, or 4. - The compound of claim 24, or a pharmaceutically acceptable salt thereof, wherein Ring B is 5-or 6-membered cycloalkyl, 5-to 9-membered heterocycloalkyl, phenyl, or 5-to 9-membered heteroaryl.
- The compound of claim 24 or 25, or a pharmaceutically acceptable salt thereof, wherein each R8 is independently halogen, -CN, -OH, -ORa, -SH, -SRa, -SF3, -SF5, -NRcRd, -NRbC (=O) Ra, C1-C6alkyl, or C1-C6haloalkyl.
- The compound of any one of claims 1-26, or a pharmaceutically acceptable salt thereof, wherein Ring A is 5-or 6-membered heterocycloalkyl comprising 1 or 2 heteroatoms selected from the group consisting of O and N.
- The compound of any one of claims 1-26, or a pharmaceutically acceptable salt thereof, wherein Ring A is piperidinyl, tetrahydrofuranyl, or tetrahydropyranyl.
- The compound of any one of claims 1-28, or a pharmaceutically acceptable salt thereof, wherein each R1 is independently -OH, -ORa, -C (=O) Ra, C1-C6alkyl, C1-C6haloalkyl, or heterocycloalkyl independently optionally substituted with one or more R.
- The compound of any one of claims 1-29, or a pharmaceutically acceptable salt thereof, wherein n is 0 or 1.
- The compound of any one of claims 1-30, or a pharmaceutically acceptable salt thereof, whereinisand R1’ is hydrogen or R1.
- The compound of claim 31, or a pharmaceutically acceptable salt thereof, wherein R1’ is -C (=O) Ra, C1-C6alkyl, C1-C6haloalkyl, or heterocycloalkyl independently optionally substituted with one or more R.
- The compound of claim 31, or a pharmaceutically acceptable salt thereof, wherein R1’ is 3-to 6-membered heterocycloalkyl comprising one or two heteroatoms selected from O, S, and N and independently optionally substituted with one or more R.
- The compound of claim 31, or a pharmaceutically acceptable salt thereof, wherein R1’ is oxetanyl.
- The compound of any one of claims 1-34, or a pharmaceutically acceptable salt thereof, wherein W is -NRW1-.
- The compound of any one of claims 1-35, or a pharmaceutically acceptable salt thereof, wherein RW1 is -C (=O) Ra, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, 3-to 6- membered cycloalkyl, or 3-to 6-membered heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more RW1a.
- The compound of any one of claims 1-36, or a pharmaceutically acceptable salt thereof, wherein each RW1a is independently halogen, -CN, -OH, -ORa, -NRcRd, C1-C6alkyl, C1-C6haloalkyl, 3-to 6-membered cycloalkyl, or 3-to 6-membered heterocycloalkyl.
- The compound of any one of claims 1-34, or a pharmaceutically acceptable salt thereof, wherein W is -C (RW2) 2-.
- The compound of any one of claims 1-34 or 38, or a pharmaceutically acceptable salt thereof, wherein each RW2 is hydrogen.
- The compound of any one of claims 1-34, or a pharmaceutically acceptable salt thereof, wherein W is -C (=O) -.
- The compound of any one of claims 1-40, or a pharmaceutically acceptable salt thereof, wherein Y is -NRY1-.
- The compound of any one of claims 1-41, or a pharmaceutically acceptable salt thereof, wherein RY1 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6hydroxyalkyl, C1-C6aminoalkyl, C1-C6heteroalkyl, 3-to 6-membered cycloalkyl, or 3-to 6-membered heterocycloalkyl; wherein the alkyl, cycloalkyl, and heterocycloalkyl is independently optionally substituted with one or more RY1a.
- The compound of any one of claims 1-40, or a pharmaceutically acceptable salt thereof, wherein Y is -C (RY2) 2-.
- The compound of any one of claims 1-40 or 43, or a pharmaceutically acceptable salt thereof, wherein each RY2 are hydrogen.
- The compound of any one of claims 1-40, or a pharmaceutically acceptable salt thereof, wherein Y is -C (=O) -.
- The compound of any one of claims 1-45, or a pharmaceutically acceptable salt thereof, wherein Z1 is CRZ1.
- The compound of any one of claims 1-46, or a pharmaceutically acceptable salt thereof, wherein RZ1 is hydrogen, halogen, or C1-C6alkyl.
- The compound of any one of claims 1-45, or a pharmaceutically acceptable salt thereof, wherein Z1 is N.
- The compound of any one of claims 1-48, or a pharmaceutically acceptable salt thereof, wherein Z2 is CRZ2.
- The compound of any one of claims 1-49, or a pharmaceutically acceptable salt thereof, wherein RZ2 is hydrogen.
- The compound of any one of claims 1-48, or a pharmaceutically acceptable salt thereof, wherein Z2 is N.
- The compound of any one of claims 1-51, or a pharmaceutically acceptable salt thereof, wherein L is -NR2-.
- The compound of any one of claims 1-48, or a pharmaceutically acceptable salt thereof, wherein R2 is hydrogen or C1-C6alkyl.
- The compound of any one of claims 1-53, or a pharmaceutically acceptable salt thereof, wherein X1 is CRX1.
- The compound of any one of claims 1-54, or a pharmaceutically acceptable salt thereof, wherein RX1 is hydrogen.
- The compound of any one of claims 1-53, or a pharmaceutically acceptable salt thereof, wherein X1 is N.
- The compound of any one of claims 1-56, or a pharmaceutically acceptable salt thereof, wherein X2 is CRX2.
- The compound of any one of claims 1-57, or a pharmaceutically acceptable salt thereof, wherein RX2 is hydrogen, halogen, 3-to 6-membered cycloalkyl, 3-to 6-membered heterocycloalkyl, 6-to 10-membered aryl, or 5-to 9-membered heteroaryl; wherein the alkyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl is independently optionally substituted with one or more RX2a.
- The compound of any one of claims 1-56, or a pharmaceutically acceptable salt thereof, wherein X2 is N.
- The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein the compound is selected from a compound found in table 1 or table 2.
- A pharmaceutical composition comprising the compound of any one of claims 1-60, or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable excipient.
- A method of treating a HPK1-mediated disorder in a patient comprising administering to said patient the compound of any one of claims 1-60, or a pharmaceutically acceptable salt thereof, or the pharmaceutical composition of claim 61.
- The method of claim 62, wherein the HPK1-mediated disorder is a proliferative disorder.
- The method of claim 63, wherein the proliferative disorder is cancer.
- The method of claim 63 or 64, wherein the proliferative disorder is associated with one or more activating mutations in HPK1.
- The method of claim 62, wherein the HPK1-mediated disorder is a chronic viral infection.
- A method of increasing the efficacy of vaccination in a patient comprising administering to said patient the compound of any one of claims 1-60, or a pharmaceutically acceptable salt thereof, or the pharmaceutical composition of claim 61 as an adjuvant.
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CNPCT/CN2023/108445 | 2023-07-20 | ||
CN2023133756 | 2023-11-23 | ||
CNPCT/CN2023/133756 | 2023-11-23 |
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WO2015170266A1 (en) * | 2014-05-07 | 2015-11-12 | Lupin Limited | Substituted pyrimidine compounds as btk inhibitors |
WO2021050964A1 (en) * | 2019-09-13 | 2021-03-18 | Nimbus Saturn, Inc. | Hpk1 antagonists and uses thereof |
WO2022174253A1 (en) * | 2021-02-12 | 2022-08-18 | Nimbus Saturn, Inc. | Hpk1 antagonists and uses thereof |
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CN117050095A (en) * | 2022-05-13 | 2023-11-14 | 南京再明医药有限公司 | Tricyclic compounds as HPK1 inhibitors and application thereof |
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WO2023237085A1 (en) * | 2022-06-10 | 2023-12-14 | 贝达药业股份有限公司 | Hpk1 inhibitor and medical use thereof |
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WO2015170266A1 (en) * | 2014-05-07 | 2015-11-12 | Lupin Limited | Substituted pyrimidine compounds as btk inhibitors |
WO2021050964A1 (en) * | 2019-09-13 | 2021-03-18 | Nimbus Saturn, Inc. | Hpk1 antagonists and uses thereof |
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