JP6003885B2 - 五員環含有化合物の製造方法 - Google Patents
五員環含有化合物の製造方法 Download PDFInfo
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- JP6003885B2 JP6003885B2 JP2013512471A JP2013512471A JP6003885B2 JP 6003885 B2 JP6003885 B2 JP 6003885B2 JP 2013512471 A JP2013512471 A JP 2013512471A JP 2013512471 A JP2013512471 A JP 2013512471A JP 6003885 B2 JP6003885 B2 JP 6003885B2
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- 150000001875 compounds Chemical class 0.000 title claims description 111
- 238000000034 method Methods 0.000 title claims description 36
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- -1 1,4-butanedione compound Chemical class 0.000 claims description 64
- 239000003960 organic solvent Substances 0.000 claims description 64
- 239000000126 substance Substances 0.000 claims description 47
- 239000000203 mixture Substances 0.000 claims description 38
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- 238000007363 ring formation reaction Methods 0.000 claims description 36
- 239000002253 acid Substances 0.000 claims description 33
- 125000000217 alkyl group Chemical group 0.000 claims description 32
- 238000004519 manufacturing process Methods 0.000 claims description 32
- 150000003147 proline derivatives Chemical class 0.000 claims description 32
- 150000002430 hydrocarbons Chemical group 0.000 claims description 30
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 24
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 21
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 21
- 125000000623 heterocyclic group Chemical group 0.000 claims description 20
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- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 8
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- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical group C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 claims description 7
- 125000003342 alkenyl group Chemical group 0.000 claims description 7
- 125000005011 alkyl ether group Chemical group 0.000 claims description 7
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 7
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- RSUHWMSTWSSNOW-IBGZPJMESA-N [diphenyl-[(2s)-pyrrolidin-2-yl]methoxy]-trimethylsilane Chemical group C=1C=CC=CC=1C(C=1C=CC=CC=1)(O[Si](C)(C)C)[C@@H]1CCCN1 RSUHWMSTWSSNOW-IBGZPJMESA-N 0.000 claims description 5
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical class OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 5
- 125000002541 furyl group Chemical group 0.000 claims description 5
- 150000002367 halogens Chemical class 0.000 claims description 5
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- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 4
- 125000001072 heteroaryl group Chemical group 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims description 3
- 125000004185 ester group Chemical group 0.000 claims description 3
- 125000005843 halogen group Chemical group 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 150000002825 nitriles Chemical group 0.000 claims description 3
- 125000003831 tetrazolyl group Chemical group 0.000 claims description 3
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- 125000005010 perfluoroalkyl group Chemical group 0.000 claims description 2
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- RSUHWMSTWSSNOW-LJQANCHMSA-N [diphenyl-[(2r)-pyrrolidin-2-yl]methoxy]-trimethylsilane Chemical compound C=1C=CC=CC=1C(C=1C=CC=CC=1)(O[Si](C)(C)C)[C@H]1CCCN1 RSUHWMSTWSSNOW-LJQANCHMSA-N 0.000 claims 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 103
- 238000006243 chemical reaction Methods 0.000 description 69
- 238000005481 NMR spectroscopy Methods 0.000 description 51
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 39
- 238000004458 analytical method Methods 0.000 description 37
- 238000004809 thin layer chromatography Methods 0.000 description 37
- 239000002904 solvent Substances 0.000 description 32
- 230000003287 optical effect Effects 0.000 description 31
- 239000000047 product Substances 0.000 description 30
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 28
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 27
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 21
- 239000011734 sodium Substances 0.000 description 21
- 238000010511 deprotection reaction Methods 0.000 description 19
- 239000000543 intermediate Substances 0.000 description 17
- 238000006722 reduction reaction Methods 0.000 description 17
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 16
- 239000000243 solution Substances 0.000 description 14
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 14
- 238000006297 dehydration reaction Methods 0.000 description 13
- 150000002009 diols Chemical class 0.000 description 13
- 239000012156 elution solvent Substances 0.000 description 13
- 230000018044 dehydration Effects 0.000 description 12
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 11
- 0 O*1CC2(CC2)NCC1 Chemical compound O*1CC2(CC2)NCC1 0.000 description 10
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 10
- 125000000524 functional group Chemical group 0.000 description 10
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- 239000007788 liquid Substances 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- 230000000707 stereoselective effect Effects 0.000 description 9
- 238000003786 synthesis reaction Methods 0.000 description 9
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 8
- 238000006842 Henry reaction Methods 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 7
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 6
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 6
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 6
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 6
- 239000012300 argon atmosphere Substances 0.000 description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 6
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 6
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 6
- 239000012046 mixed solvent Substances 0.000 description 6
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 6
- 125000004430 oxygen atom Chemical group O* 0.000 description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 6
- PZYOGBADIJFEOI-UZEXVOJHSA-N (3s,4r)-4-(hydroxymethyl)-2-nitro-3-phenylcyclopentan-1-ol Chemical compound OC[C@@H]1CC(O)C([N+]([O-])=O)[C@@H]1C1=CC=CC=C1 PZYOGBADIJFEOI-UZEXVOJHSA-N 0.000 description 5
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 5
- PCSMJKASWLYICJ-UHFFFAOYSA-N Succinic aldehyde Chemical compound O=CCCC=O PCSMJKASWLYICJ-UHFFFAOYSA-N 0.000 description 5
- 239000013543 active substance Substances 0.000 description 5
- 150000001299 aldehydes Chemical class 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- 150000002894 organic compounds Chemical class 0.000 description 5
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 4
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 4
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 4
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 230000008034 disappearance Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000012044 organic layer Substances 0.000 description 4
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- 125000004043 oxo group Chemical group O=* 0.000 description 4
- 238000010898 silica gel chromatography Methods 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
- LQZCYXCHWNQBKX-UHFFFAOYSA-N 1-dimethoxyphosphorylheptan-2-one Chemical compound CCCCCC(=O)CP(=O)(OC)OC LQZCYXCHWNQBKX-UHFFFAOYSA-N 0.000 description 3
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- HBAQYPYDRFILMT-UHFFFAOYSA-N 8-[3-(1-cyclopropylpyrazol-4-yl)-1H-pyrazolo[4,3-d]pyrimidin-5-yl]-3-methyl-3,8-diazabicyclo[3.2.1]octan-2-one Chemical class C1(CC1)N1N=CC(=C1)C1=NNC2=C1N=C(N=C2)N1C2C(N(CC1CC2)C)=O HBAQYPYDRFILMT-UHFFFAOYSA-N 0.000 description 3
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- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 238000006957 Michael reaction Methods 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
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- 238000011914 asymmetric synthesis Methods 0.000 description 3
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- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 125000006165 cyclic alkyl group Chemical group 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 3
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- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
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- NGQKOINXYPZJQW-UHFFFAOYSA-N methyl 9-nitronon-8-enoate Chemical compound COC(=O)CCCCCCC=C[N+]([O-])=O NGQKOINXYPZJQW-UHFFFAOYSA-N 0.000 description 3
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- 238000000746 purification Methods 0.000 description 3
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- 230000035484 reaction time Effects 0.000 description 3
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- 125000000335 thiazolyl group Chemical group 0.000 description 3
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- FTTATHOUSOIFOQ-UHFFFAOYSA-N 1,2,3,4,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazine Chemical compound C1NCCN2CCCC21 FTTATHOUSOIFOQ-UHFFFAOYSA-N 0.000 description 2
- IVSZLXZYQVIEFR-UHFFFAOYSA-N 1,3-Dimethylbenzene Natural products CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 2
- UMPSXRYVXUPCOS-UHFFFAOYSA-N 2,3-dichlorophenol Chemical compound OC1=CC=CC(Cl)=C1Cl UMPSXRYVXUPCOS-UHFFFAOYSA-N 0.000 description 2
- LINPIYWFGCPVIE-UHFFFAOYSA-N 2,4,6-trichlorophenol Chemical compound OC1=C(Cl)C=C(Cl)C=C1Cl LINPIYWFGCPVIE-UHFFFAOYSA-N 0.000 description 2
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- CKKOVFGIBXCEIJ-UHFFFAOYSA-N 2,6-difluorophenol Chemical compound OC1=C(F)C=CC=C1F CKKOVFGIBXCEIJ-UHFFFAOYSA-N 0.000 description 2
- CHZCERSEMVWNHL-UHFFFAOYSA-N 2-hydroxybenzonitrile Chemical compound OC1=CC=CC=C1C#N CHZCERSEMVWNHL-UHFFFAOYSA-N 0.000 description 2
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- PIAOLBVUVDXHHL-UHFFFAOYSA-N 2-nitroethenylbenzene Chemical compound [O-][N+](=O)C=CC1=CC=CC=C1 PIAOLBVUVDXHHL-UHFFFAOYSA-N 0.000 description 2
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 description 2
- TUAMRELNJMMDMT-UHFFFAOYSA-N 3,5-xylenol Chemical compound CC1=CC(C)=CC(O)=C1 TUAMRELNJMMDMT-UHFFFAOYSA-N 0.000 description 2
- IJFXRHURBJZNAO-UHFFFAOYSA-N 3-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=CC(O)=C1 IJFXRHURBJZNAO-UHFFFAOYSA-N 0.000 description 2
- ASHGTJPOSUFTGB-UHFFFAOYSA-N 3-methoxyphenol Chemical compound COC1=CC=CC(O)=C1 ASHGTJPOSUFTGB-UHFFFAOYSA-N 0.000 description 2
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 229960003512 nicotinic acid Drugs 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 125000004971 nitroalkyl group Chemical group 0.000 description 1
- 125000001400 nonyl 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])C([H])([H])[H] 0.000 description 1
- 230000000269 nucleophilic effect Effects 0.000 description 1
- 238000007344 nucleophilic reaction Methods 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
- 238000005580 one pot reaction Methods 0.000 description 1
- 125000001715 oxadiazolyl group Chemical group 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 1
- 229940094443 oxytocics prostaglandins Drugs 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- NXJCBFBQEVOTOW-UHFFFAOYSA-L palladium(2+);dihydroxide Chemical compound O[Pd]O NXJCBFBQEVOTOW-UHFFFAOYSA-L 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000005981 pentynyl group Chemical group 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 239000008055 phosphate buffer solution Substances 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 125000004742 propyloxycarbonyl group Chemical group 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000005344 pyridylmethyl group Chemical group [H]C1=C([H])C([H])=C([H])C(=N1)C([H])([H])* 0.000 description 1
- GUFUWKKDHIABBW-UHFFFAOYSA-N pyrrolidin-1-ylmethanol Chemical class OCN1CCCC1 GUFUWKKDHIABBW-UHFFFAOYSA-N 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- OLRJXMHANKMLTD-UHFFFAOYSA-N silyl Chemical group [SiH3] OLRJXMHANKMLTD-UHFFFAOYSA-N 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- YOEWQQVKRJEPAE-UHFFFAOYSA-L succinylcholine chloride (anhydrous) Chemical compound [Cl-].[Cl-].C[N+](C)(C)CCOC(=O)CCC(=O)OCC[N+](C)(C)C YOEWQQVKRJEPAE-UHFFFAOYSA-L 0.000 description 1
- CGNPDYLYRCTDBN-GXSJLCMTSA-N tert-butyl (1r,5r)-5-(acetyloxymethyl)-2-nitrocyclopent-2-ene-1-carboxylate Chemical compound CC(=O)OC[C@@H]1CC=C([N+]([O-])=O)[C@@H]1C(=O)OC(C)(C)C CGNPDYLYRCTDBN-GXSJLCMTSA-N 0.000 description 1
- RUPAXCPQAAOIPB-UHFFFAOYSA-N tert-butyl formate Chemical group CC(C)(C)OC=O RUPAXCPQAAOIPB-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 125000005302 thiazolylmethyl group Chemical group [H]C1=C([H])N=C(S1)C([H])([H])* 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- BJBUEDPLEOHJGE-IMJSIDKUSA-N trans-3-hydroxy-L-proline Chemical compound O[C@H]1CC[NH2+][C@@H]1C([O-])=O BJBUEDPLEOHJGE-IMJSIDKUSA-N 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 125000001889 triflyl group Chemical group FC(F)(F)S(*)(=O)=O 0.000 description 1
- 125000000025 triisopropylsilyl group Chemical group C(C)(C)[Si](C(C)C)(C(C)C)* 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003021 water soluble solvent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/42—Singly bound oxygen atoms
- C07D307/45—Oxygen atoms acylated by a cyclopropane containing carboxylic acyl radical, e.g. chrysanthemumates
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B53/00—Asymmetric syntheses
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/05—Compounds containing nitro groups bound to a carbon skeleton having nitro groups bound to carbon atoms of rings other than six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/73—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids
- C07C69/732—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids of unsaturated hydroxy carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/73—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids
- C07C69/738—Esters of keto-carboxylic acids or aldehydo-carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/42—Singly bound oxygen atoms
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/08—Systems containing only non-condensed rings with a five-membered ring the ring being saturated
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pyrrole Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
炭素数3〜10であって飽和及び/又は不飽和で、脂肪族又は芳香族の炭化水素環基、例えばフェニル基、ナフチル基、シクロプロピル基、シクロブチル基、シクロペンチル基、シクロヘキシル基、シクロヘプチル基、シクロオクチル基、シクロノニル基、又はシクロデシル基;
5〜6員環の飽和及び/又は不飽和で、ヘテロアリール基や複素脂環基のような複素環基、例えばフリル基、オキサゾリル基、イソオキサゾリル基、チアゾリル基、イソチアゾリル基、オキサジアゾリル基、ピロリル基、トリアゾリル基、イミダゾリル基、ピラゾリル基、チエニル基、ピリジル基、又はモルホニル基;
前記のような炭化水素環基を有する炭素数1〜4のアルキル基である炭化水素環含有アルキル基、例えばベンジル基やフェネチル基のようなアラルキル基、又はシクロアルキル置換アルキル基;
前記のような複素環基を有する炭素数1〜4のアルキル基である複素環含有アルキル基、例えばピリジルメチル基、ピリジルエチル基、又はチアゾリルメチル基;
炭素数1〜10であって、直鎖状、分岐鎖状及び/又は環状のアルキル基、例えば、メチル基、エチル基、プロピル基、ブチル基、ペンチル基、ヘキシル基、ヘプチル基、オクチル基、ノニル基、デシル基、シクロプロピル基、シクロブチル基、シクロペンチル基、シクロヘキシル基、シクロヘプチル基、シクロオクチル基、シクロノニル基、又はシクロデシル基;
炭素数2〜6で、直鎖状、分岐鎖状及び/又は環状のアルケニル基、例えばビニル基、プロペニル基、ブテニル基、ブタジエニル基、ペンテニル基、ペンタジエニル基、ヘキセニル基、ヘキサジエニル基、シクロプロペニル基、シクロブテニル基、シクロペンテニル基、又はシクロヘキセニル基;
炭素数2〜6で、直鎖状、分岐鎖状及び/又は環状のアルキニル基例えばエチニル基、プロピニル基、ブチニル基、ブタジエニル基、ペンチニル基、ペンタジニル基、ヘキシニル基、又はヘキサジイニル基;
炭素数1〜4のアルキルチオエーテル基を有する炭素数1〜4のアルキル基であるアルキルチオエーテル含有アルキル基、例えばエチルチオメチル基(−CH2−S−CH2CH3)、プロピルチオエチル基(−(CH2)2−S−(CH2)2CH3)、又はブチルチオブチル基(−(CH2)4−S−(CH2)3CH3);
前記のような複素環基を有する前記のようなアルキルチオエーテル基である複素環含有アルキルチオエーテル基、例えばピリジルチオエチル基(−(CH2)2−S−ピリジル基)、ピリジルエチルチオメチル基(−CH2−S−(CH2)2−ピリジル基)、チアゾリルチオエチル基(−(CH2)2−S−チアゾリル基)、又はチアゾリルエチルチオメチル基(−CH2−S−(CH2)2−チアゾリル基);
前記のような炭化水素環基を有する炭素数1〜4のアルキルエーテル基である炭化水素環含有アルキルエーテル基、例えば、ベンジルオキシエチル基、フェネチルオキシエチル基又はベンジルオキシプロピル基;
又は炭素数1〜4のアルキルオキシを有するアルキルオキシカルボニル基、例えばターシャリーブトキシカルボニル基、メトキシカルボニル基、エトキシカルボニル基、プロポキシカルボニル基、又はイソプロポキシカルボニル基が挙げられる。
R1が有していてもよい置換基の位置は特に限定されない。
Chemie International Edition),2006年,第45巻,p.6853-6856、及び、エイチ.ゴトウ(H. Gotoh)ら,オーガニック レターズ(Organic Letters),2007年,第9巻,p.2859-2862等に準拠して製造することができる。
ヒドロキシ芳香族誘導体、例えばフェノール、2,4−ジニトロフェノール、2−クロロ−4−ニトロフェノール、2,4,6−トリクロロフェノール、2,6−ジクロロフェノール、2,6−ジフルオロフェノール、2,6−ジメチル−4−ニトロフェノール、4−ニトロフェノール、2−ヒドロキシベンゾニトリル、2−ニトロフェノール、2,3−ジクロロフェノール、4−シアノフェノール、2,4−ジクロロフェノール、2−ヒドロキシ−ベンズアミド、3,5−ジクロロフェノール、3−ニトロフェノール、3,4−ジクロロフェノール、2−クロロフェノール、3−シアノフェノール、4−クロロフェノール、3−メトキシフェノール、3−メチルフェノール、3,5−ジメチルフェノール、4−メチルフェノールで例示されるフェノール誘導体、1−ヒドロキシナフタレン、2−ヒドロキシナフタレンで例示されるヒドロキシナフタレン誘導体;
パーフルオロアルキル基含有アルコール、例えば1,1,1,3,3,3−ヘキサフルオロ−2−プロパノールが挙げられる。
(1)アルカリ加水分解、
(2)酸性条件下における脱保護反応、
(3)加水素分解による脱保護反応、
(4)シリル基の脱保護反応等が挙げられる。
(1)アルカリ加水分解による脱保護反応は、例えば、有機溶媒(メタノール、テトラヒドロフラン、ジオキサン、又はこれらの混合溶媒等)中、アルカリ金属の水酸化物(水酸化ナトリウム、水酸化カリウム、水酸化リチウム等)、アルカリ土類金属の水酸化物(水酸化バリウム、水酸化カルシウム等)、又は炭酸塩(炭酸ナトリウム、炭酸カリウム等)若しくはその水溶液若しくはこれらの混合物を用いて、0〜40℃の温度で行なわれる。
(2)酸条件下での脱保護反応は、例えば、有機溶媒(塩化メチレン、クロロホルム、ジオキサン、酢酸エチル、アニソール、メタノール、エタノール、イソプロピルアルコール等)中、又は有機溶媒の非存在下若しくはその水溶液中、有機酸(酢酸、トリフルオロ酢酸、メタンスルホン酸等)、又は無機酸(塩酸、硫酸等)若しくはこれらの混合物(臭化水素/酢酸等)中、0〜100℃の温度で行なわれる。
(3)加水素分解による脱保護反応は、例えば、溶媒(エーテル系(テトラヒドロフラン、ジオキサン、ジメトキシエタン、ジエチルエーテル等)、アルコール系(メタノール、エタノール等)、ベンゼン系(ベンゼン、トルエン等)、ケトン系(アセトン、メチルエチルケトン等)、ニトリル系(アセトニトリル等)、アミド系(ジメチルホルムアミド等)、水、エステル系(酢酸エチル等)、酢酸、又はそれらの2以上の混合溶媒等)中、触媒(パラジウム−炭素、パラジウム黒、水酸化パラジウム、酸化白金、ラネーニッケル等)の存在下、常圧又は加圧下の水素雰囲気下又はギ酸アンモニウム存在下、0〜200℃の温度で行なわれる。
(4)シリル基の脱保護反応は、例えば、水と混和しうる有機溶媒(テトラヒドロフラン、アセトニトリル等)中、テトラブチルアンモニウムフルオライドを用いて、0〜40℃の温度で行なわれる。
アルゴン雰囲気下、α,β−不飽和ニトロ化合物としてニトロスチレンである(E)−(2−ニトロビニル)ベンゼン(3a)(40.3mg,0.41mmol)と、1,4−ブタンジオン化合物としてスクシンアルデヒド(2a)(53.4mg,0.62mmol)と、酸としてp−ニトロフェノール(5.7mg,0.041mmol)とを、水不溶性有機溶媒であるCH2Cl2(0.41mL)に溶解した溶液に、プロリン誘導体として(S)−2−(ジフェニル((トリメチルシリル)オキシ)メチル)ピロリジン(1a)(13.3mg,0.041mmol)を室温(23℃)で加えた。この反応溶液中のニトロベンゼンの基質濃度は、1Mであった。この反応溶液を、同温度で3時間撹拌した。主生成物はジアステレオマー混合物として、シリカゲル薄層クロマトグラフィー(TLC)によりRf値=0.42,0.32,0.23(展開溶媒 酢酸エチル:ヘキサン=1:3に、反応生成物(7a)のスポットが現れた。TLCでニトロスチレンのスポットの消失を確認後、反応溶液を0℃に冷却し、メタノール(0.82mL)及びNaBH4(46.5mg,1.23mmol)を加えた。0℃で20分間撹拌後、1N塩酸を加えて反応を停止し、有機物をクロロホルムで5回抽出した。合わせた有機層を飽和食塩水で洗浄し、硫酸マグネシウムを加え乾燥した。溶媒等の低沸点有機化合物を減圧下留去した後、得られた粗生成物を、シリカゲルカラムクロマトグラフィー(溶出溶媒 酢酸エチル:ヘキサン=1:3→2:1)で精製し、目的の還元化五員環化合物であるジオール体として(3S,4R)−4−(ヒドロキシメチル)−2−ニトロ−3−フェニルシクロペンタノール(8a)(69.1mg,0.29mmol)を、水酸基とニトロ基との立体配置の異なる4種のジアステレオマー混合物(0.37:1.00:0.98:0.46)として、収率71%で得た。この結果を、下記表1に示す。
1H NMR(CDCl3) δ 2.03-2.10 (1.1H, m), 2.23 (1.9H, dd, J = 8.0, 16.0 Hz), 2.40-2.48 (0.5H, m), 2.48-2.60 (0.5H, m), 3.48-3.56 (1H, m), 3.59-3.71 (1H, m), 3.37-3.48 (0.5H, m), 3.94-4.02 (0.5H, m), 4.62-4.70 (0.15H, m), 4.76 (0.36H, dd, J = 5.6, 11.2 Hz), 4.85 (0.36H, dd, J = 5.6, 9.6 Hz), 4.93 (0.13H, dd, J = 4.4, 10.8 Hz), 7.21-7.40 (5H, m)
TLC :Rf = 0.25(36%), 0.31(36%), 0.44(15%), 0.55(13%) (展開溶媒 酢酸エチル:ヘキサン=2:1) (ジアステレオマーの混合比は、1H NMRの積分比により算定)
アルゴン雰囲気下、環化工程及び還元工程で得たジオール体である(3S,4R)−4−(ヒドロキシメチル)−2−ニトロ−3−フェニルシクロペンタノール(8a)(69.1mg,0.29mmol)のジアステレオマー混合物(69.1mg,0.29mmol)のピリジン(0.58mL)溶液を0℃に冷却し、無水酢酸(Ac2O、82.2μL,0.87mmol)を加え、同温度で6時間撹拌した。さらに室温で12時間撹拌した。リン酸緩衝溶液を加えて反応を停止し、有機物を酢酸エチルで3回抽出した。合わせた有機層を飽和食塩水で洗浄し、硫酸ナトリウムを加え乾燥した。溶媒等の低沸点有機化合物を減圧下留去した後、シリカゲルカラムクロマトグラフィー(溶出溶媒 酢酸エチル:ヘキサン=1:10)で精製し、目的のニトロシクロペンテン化合物である脱水体として((1R,2S)−3−ニトロ−2−フェニルシクロペント−3−エン−1−イル)メチル アセテート(9a)(56.8mg,0.22mmol)を収率75%で得た。これの光学収率を、キラルカラムによる高速液体クロマトグラフィーによりエナンチオマー過剰率として求めたところ、95%eeであった。この結果を、下記表2に示す。
1H NMR (CDCl3) δ 2.06(3H, s), 2.44 (1H, bdt, J = 4.4, 19.2 Hz ), 2.67-2.78 (1H, m), 2.92 (1H, ddt, J = 2.8, 8.8, 19.2 Hz, 4.11 (1H, dd, J = 6.8, 11.2 Hz), 4.17-4.20 (1H, m), 4.18 (1H, dd, J = 6.8, 11.2 Hz), 7.05 (2H, dd, J = 2.4, 9.2 Hz), 7.11-7.21 (3H, m), 7.28-740 (2H, m);
13C NMR (CDCl3) δ 20.8, 32.5, 46,4, 51.4, 65.8, 126.8 (2C), 127.4, 129.0 (2C), 137.7, 140.7, 153.7, 170.9;
IR (neat) ν 1740, 1510, 1362, 1236, 1036, 755.9, 701.0 cm-1;
HRMS (ESI): [M+Na]+ calculated for C13H15NO5Na: 284.0899, found: 284.0886;
[α]D 13+116 (c 0.49, CHCl3);
光学収率:95% ee (光学収率は、Chiralpak IBカラム(株式会社ダイセル製)を用いた高速液体カラムクロマトグラフ法により、溶出溶媒(ヘキサン:イソプロパノール=80:1)で溶出速度1.0 mL/minとしたとき、主エナンチオマーがtR = 18.1 min、副エナンチオマーがtR = 19.4 minであった。);
TLC :Rf = 0.35 (展開溶媒 酢酸エチル:ヘキサン=1:3)
実施例1−1の環化工程中、反応条件を、水不溶性有機溶媒としてn−ヘキサンに代えたこと、及び下記表1の通りに代えたこと以外、実施例1−1と同様にして、環化工程及び還元工程を行い、目的の還元化五員環化合物であるジオール体として、水酸基とニトロ基との立体配置の異なる4種の(3S,4R)−4−(ヒドロキシメチル)−2−ニトロ−3−フェニルシクロペンタノール(8a)のジアステレオマー混合物を得た。そのジアステレオ比は、実施例1−1と同様にして測定したところ、TLC :Rf = 0.25(15%), 0.31(34%), 0.44(35%), 0.55(16%) (展開溶媒 酢酸エチル:ヘキサン=2:1) (ジアステレオマーの混合比は、1H NMRの積分比により算定)であった。それらの結果を、まとめて表1に示す。また、実施例1−2と同様にして脱水工程を行い、目的のニトロシクロペンテン化合物である脱水体として((1R,2S)−3−ニトロ−2−フェニルシクロペント−3−エン−1−イル)メチル アセテート(9a)を、収率75%、光学収率94%eeで得た。その結果を、まとめて表2に示す。なお理化学分析結果は同様であった。
実施例1−1中、環化工程で、酸としてp−ニトロフェノールを用いなかったことと、水不溶性有機溶媒及び反応時間を表3に記載の条件に代えたこと以外は、実施例1−1の(環化工程及び還元工程)と同様にして、目的の還元化五員環化合物であるジオール体として、水酸基とニトロ基との立体配置の異なる4種の(3S,4R)−4−(ヒドロキシメチル)−2−ニトロ−3−フェニルシクロペンタノール(8a)のジアステレオマー混合物を、同様に得た。その結果を、まとめて表3に示す。なお理化学分析結果は同様であった。
実施例1−1中、環化工程で、酸としてp−ニトロフェノールを用いなかったこと、水不溶性有機溶媒に代えてTHFやジオキサンのような水溶性環状エーテルやメタノールのような水溶性アルコールである酸素原子含有の各種水溶性溶媒を用いたこと、及び反応時間を表3に記載の条件に代えたこと以外は、実施例1−1の(環化工程及び還元工程)と同様にして、反応を行った。その結果を、まとめて表3に示す。
実施例1−1の反応条件を、表4に記載の反応条件に代えたこと以外は、実施例1−1と同様にして、反応を行った。その結果を、まとめて表4に示す。
実施例1−1の反応条件を、表5に記載の反応条件に代えたこと以外は、実施例1−1の(環化工程及び還元工程)と同様にして、目的の還元化五員環化合物として、水酸基とニトロ基との立体配置の異なる4種のジオール体の生成物(8a〜8i)の夫々のジアステレオマー混合物を得た。その結果を、まとめて表5に示す。また、得られたジアステレオマー混合物について、1H NMRと、TLCとによる理化学分析を行った結果を以下に示す。この理化学分析結果は、(8a)については、前記の理化学分析結果と同一であり、(8b〜8i)については、4種のジアステレオマー混合物である8b〜8iの化学構造を支持する。
1H NMR (CDCl3) δ 1.98-2.14 (1.6H, m), 2.24 (1.4H, dt, J = 8.0, 14.0 Hz), 2.34-2.62 (1H, m), 3.42-3.59 (0.4H, m), 3.59-3.77 (1.6H, m), 3.21-3.39 (0.65H, m), 3.94-4.02 (0.35H, m), 4.46-4.53 (0.08H, m), 4.76 (0.1H, t, J = 7.2 Hz), 4.63-4.78 (0.36H, m), 4.78-4.95 (0.46H, m), 6.88 (0.3H, d, J = 9.2 Hz ), 7.09 (0.3H, d, J = 9.2 Hz), 7.14 (0.7H, dd, J = 3.0, 8.4 Hz), 7.46 (0.7H, dd, J = 3.0, 8.4 Hz);
TLC :Rf = 0.22(46%), 0,28(36%), 0.39(10%), 0,50(8%) (展開溶媒 酢酸エチル:ヘキサン=2:1) (ジアステレオマーの混合比は、1H NMRの積分比により算定)
1H NMR (CDCl3) δ 1.33-1.53 (1.1H, m), 1.53-1.79 (1.9H, m), 2.08-2.29 (0.61H, m), 2.30-2.57 (0.39H, m), 3.35-3.73 (3H, m), 3.78 (3H, s), 4.68 (0.48H, dd, J = 10.2, 12.4 Hz), 4.72-4.81 (0.1H, m), 4.86 (0.42H, dd, J = 5.2, 12.4 Hz), 6.85 (1.6H, dd, J = 2.8, 9.6 Hz), 7.11 (1.6H, dd, J = 2.8, 9.6 Hz), 7.19 (0.4H, d, J = 5.6 Hz), 7.40 (0.4H, d, J = 5.6 Hz);
TLC :Rf = 0.21(48%), 0.27(42%), 0.35(5%), 0.48(5%) (展開溶媒 酢酸エチル:ヘキサン=2:1) (ジアステレオマーの混合比は、1H NMRの積分比により算定)
1H NMR (CDCl3) δ 1.96 (0.85H, dd, J = 1.6, 11.2 Hz), 2.09 (1.15H, ddd, J = 5.6, 9.2, 14.4 Hz), 2.27 (1H, dd, J = 8.0, 16.0 Hz), 2.44-2.57 (0.55H, m), 2.58-2.71 (0.45H, m), 3.61-3.76 (2H, m), 3.53 (0.56H, dd, J = 5.6, 10.8 Hz), 4.16 (0.44H, dd, J = 7.6, 10.8 Hz), 4.70 (0.25H, t, J = 4.4 Hz), 4.79 (0.29H, dt, J = 5.6, 8.0 Hz), 4.97 (0.23H, dd, J = 5.6, 10.0 Hz), 5.03 (0.23H, dd, J = 4.4, 10.8 Hz), 7.15-7.50 (4.6H, m), 7.62-7.90 (2.4H, m);
TLC :Rf = 0.19(29%), 0,25(25%), 0.34(23%), 0.44(23%) (展開溶媒 酢酸エチル:ヘキサン=2:1) (ジアステレオマーの混合比は、1H NMRの積分比により算定)
1H NMR (CDCl3) δ 1.78-1.94 (2H, m), 1.96-2.08 (1H, m), 2.21 (1H, dd, J = 7.6, 14.0 Hz), 2.40-2.48 (0.26H, m), 2.52-2.69 (0.74H, m), 3.67-3.80 (2H, m), 3.62 (1H, dd, J = 5.2, 10.8 Hz), 4.64 (0.18H, m), 4.73 (0.35H, dd, J = 6.4, 14.0 Hz), 4.93 (0.31H, dd, J = 6.4, 10.0 Hz), 5.00 (0.16H, dd, J = 4.4, 10.4 Hz), 6.18 (1H, s), 6.30 (1H, bs), 7.34 (1H, d, J = 6.4 Hz);
TLC :Rf = 0.13(35%), 0.22(31%), 0.39(18%), 0.47(16%) (展開溶媒 酢酸エチル:ヘキサン=1:1) (ジアステレオマーの混合比は、1H NMRの積分比により算定)
1H NMR (CDCl3) δ 1.58-1.71 (2H, m), 1.71-1.85 (1.16H, m), 1.86-1.98 (0.84H, m), 2.00-2.15 (0.71H, m), 2.18-2.28 (0.29H, m), 2.34-2.47 (0.84H, m), 2.55-2.72 (1.86H, m), 2.90 (0.3H, dt, J = 9,2, 16.0 Hz), 3.10-3.20 (0.13H, m), 3.56 (0.24H, dd, J = 6.4, 10.8 Hz), 3.59-3.71 (2.4H, m), 3.75 (0.36H, dd, J = 5.6, 10.4 Hz), 4.40 (0.24H, dd, J = 1.2, 5.6 Hz), 4.45-4.57 (0.57H, m), 4.64 (0.15H, dd, J = 6.8, 13.2 Hz) , 7.10-7.22 (2.9H, m), 7.27-7.33 (2.1H, m);
TLC :Rf = 0.21(32%), 0.29(27%), 0.39(25%), 0.48(16%) (展開溶媒 酢酸エチル:ヘキサン=2:1) (ジアステレオマーの混合比は、1H NMRの積分比により算定)
1H NMR (CDCl3) δ 1.48 (9H, s), 1.90-2.10 (1.04H, m), 2.28 (0.96H, dt, J = 6.4, 14.8 Hz), 2.41-2.62 (1H, m), 3.33 (0.45H, dd, J = 8.8 Hz), 3.62-3.81 (1.89H, m), 3.86 (0.66H, dd, J = 3.2, 10.0 Hz), 3.37-3.48 (0.5H, m), 3.94-4.02 (0.5H, m), 4.55-4.68 (0.5H, m), 4.98 (0.17H, dd, J = 6.4, 9.2 Hz), 5.05 (0.33H, dd, J = 4.4, 11.2 Hz);
TLC :Rf = 0.24(31%), 0.31(31%), 0.42(19%), 0.52(19%) (展開溶媒 酢酸エチル:ヘキサン=2:1) (ジアステレオマーの混合比は、1H NMRの積分比により算定)
1H NMR (CDCl3) δ 1.50-1.86 (2H, m), 1.87-1.93 (1.4H, m), 1.99 (0.6H, dt, J = 6.8, 13.6 Hz), 2.09-2.28 (1H, m), 2.54 (0.6H, dt, J = 6.8, 13.6 Hz), 2.68-2.78 (0.13H, m), 2.89-3.00 (0.14H, m), 3.10-3.20 (0.13H, m), 3.45-3.58 (2.2H, m), 3.60 (1.4H, dd, J = 1.2, 5.6 Hz), 3.60-3.72 (0.4H, m), 3.80 (3H, s), 4.31-4.51 (1.38H, m), 4.51-4.66 (0.62H, m), 6.85 (2H, dd, J = 3.2, 8.8 Hz), 7.23 (2H, dd, J = 3.2, 8.8 Hz);
TLC :Rf = 0.26, 0.35, 0.53, 0.64 (展開溶媒 酢酸エチル:ヘキサン=2:1) (ジアステレオマーの混合比は、1H NMRの積分比により算定)
実施例1−2の反応条件を、表6に記載の反応条件に代えたこと以外は、実施例1−2の(脱水工程)と同様にして、目的のニトロシクロペンテン化合物である脱水体(9a〜9i)の夫々を単一生成物のジアステレオマーとして得た。その結果を、まとめて表6に示す。また、この生成物について、1H NMR、13C NMR、IR、HRMS (ESI)、旋光度測定、キラルカラムによる光学純度測定、TLCによるRf値測定との各理化学分析を行った結果を以下に示す。この理化学分析結果は、(9a)については、前記の理化学分析結果と同一であり、(9b〜9i)については、単一異性体である各化学構造を支持する。
1H NMR (CDCl3) δ 2.04(3H, s), 2.43 (1H, ddt, J = 2.8, 4.8, 19.2 Hz), 2.67 (1H,m), 2.90 (1H, ddt, J = 2.8, 8.8, 16.4 Hz), 3.79 (1H, dt, J = 7.2, 11.2 Hz), 4.09 (1H, dd, J = 6.8, 11.2 Hz), 4.12-4.16 (1H, m), 4.17 (1H, dd, J = 6.0, 11.2 Hz), 7.05 (2H, dd, J = 2.4, 9.2 Hz), 7.14 (1H, dd, J = 2.8, 4.4 Hz), 7.44 (2H, dd, J = 2.4, 9.2 Hz);
13C NMR (CDCl3) δ 20.7, 32.4, 46,4, 51.0, 65.6, 121.3, 128.5 (2C), 132.1 (2C), 138.0, 139.8, 153.3, 170.8;
IR (neat) ν 1739, 1550, 1514, 1488, 1240, 1038, 1010 cm-1;
HRMS (ESI): [M+Na]+ calculated for C14H14NO4BrNa: 362.0004, found: 362.0011;
[α]D 20 +48.2 (c 0.71, CHCl3)
光学収率:93% ee (光学収率は、Chiralpak IBカラム(株式会社ダイセル製)を用いた高速液体カラムクロマトグラフ法により、溶出溶媒(ヘキサン:イソプロパノール=80:1)で溶出速度1.0 mL/minとしたとき、主エナンチオマーがtR = 24.9 min、副エナンチオマーがtR = 28.0 minであった。);
TLC :Rf = 0.31 (展開溶媒 酢酸エチル:ヘキサン=1:3)
1H NMR (CDCl3) δ2.05 (3H, s), 2.41 (1H, dt, J = 4.8, 19.6 Hz), 2.69 (1H, m), 2.90 (1H, ddt, J = 2.8, 8.8, 16.4 Hz), 3,77 (1H, s), 4.10 (1H, dd, J = 6.4, 11.2 Hz), 4.12-4.15 (1H, m), 4.17 (1H, dd, J = 6.4, 11.2 Hz), 6.85 (2H, dd, J = 2.8, 9.6 Hz), 7.09 (2H, dd, J = 2.8, 9.6 Hz), 7.11 (1H, s);
13C NMR (CDCl3) δ 20.8, 32.4, 46,5, 50.6, 55.2, 65.8, 114.3 (2C), 127.9 (2C), 132.7, 137.3, 153.9, 158. 8, 170.8;
IR (neat) ν 1740, 1511, 1361, 1240, 1179, 1034 cm-1;
HRMS (ESI): [M+Na]+ calculated for C15H17NO5Na: 314.1004, found: 314.0990;
[α]D 20 +85.8 (c 0.67, CHCl3);
光学収率:91% ee (光学収率は、Chiralpak IBカラム(株式会社ダイセル製)を用いた高速液体カラムクロマトグラフ法により、溶出溶媒(ヘキサン:イソプロパノール=80:1)で溶出速度1.0 mL/minとしたとき、主エナンチオマーがtR = 25.5 min、副エナンチオマーがtR = 28.4 minであった。);
TLC :Rf = 0.29 (展開溶媒 酢酸エチル:ヘキサン=1:3)
1H NMR (CDCl3) δ 20.7 (3H, s), 2.48 (1H, bd, J = 19.2 Hz), 2.74-2.88(1H, m), 2.98 (1H, ddt, J = 2.8, 8.8, 19.2 Hz), 4.16 (1H, dd, J = 6.8, 11.2 Hz), 4.22 (1H, dd, J = 6.8, 11.2 Hz), 4.36 (1H, bs), 7.21 (1H, s), 7.30 (1H, dd, J = 1.6, 8.4 Hz), 7.41-7.54 (2H, m), 7.54 (1H, s), 7.74-7.89 (3H, m);
13C NMR (CDCl3) δ 20.8, 32.6, 46.4, 51.5,65.8, 124.8, 125.6, 125.9, 126.4, 127.7 (2C), 129.0, 132.7, 133.5, 138.0 (2C), 153.6, 170.9;
IR (neat) ν 1740, 1513, 1359, 1237, 1038, 817.6 cm-1;
HRMS (ESI): [M+Na]+ calculated for C18H17NO4Na: 334.1055, found: 334.1049;
[α]D 18 +889 (c 0.24, CHCl3);
光学収率:95% ee (光学収率は、Chiralpak IBカラム(株式会社ダイセル製)を用いた高速液体カラムクロマトグラフ法により、溶出溶媒(ヘキサン:イソプロパノール=80:1)で溶出速度1.0 mL/minとしたとき、主エナンチオマーがtR = 25.9 min、副エナンチオマーがtR = 31.9 minであった。);
TLC :Rf = 0.31 (展開溶媒 酢酸エチル:ヘキサン=1:3)
1H NMR (CDCl3) δ 20.5 (3H, s), 2.41 (1H, dd, J = 4.4, 14.8 Hz), 2.89 (1H, d, J = 2.0 Hz), 2.80-2.99(1H, m), 4.08 (1H, dd, J = 4.4, 6.4 Hz), 4.14 (1H, dd, J = 4.4, 6.4 Hz), 4.28 (1H, s), 6.14 (1H, s) 6.28 (1H, s), 7.09 (1H, s), 7.29 (1H, s);
13C NMR (CDCl3) δ 20.8, 32.3, 43.2, 44.6, 65.5, 106.5, 110.5, 138.2, 142.0, 151.4, 152.3, 170.9;
IR (neat) ν 1740, 1515, 1361, 1234, 1037, 1011, 737.6 cm-1;
HRMS (ESI): [M+Na]+ calculated for C12H13NO5Na: 274.0691, found:274.0697;
[α]D 21 +43.6 (c 0.46, CHCl3);
光学収率:92% ee (光学収率は、Chiralpak IBカラム(株式会社ダイセル製)を用いた高速液体カラムクロマトグラフ法により、溶出溶媒(ヘキサン:イソプロパノール=80:1)で溶出速度1.0 mL/minとしたとき、主エナンチオマーがtR = 18.2 min、副エナンチオマーがtR = 18.4 minであった。);
TLC :Rf = 0.44 (展開溶媒 酢酸エチル:ヘキサン=1:3)
1H NMR (CDCl3) δ 1.72-1.85(1H, m), 2.04 (3H, s), 2.05-2.18 (2H, m) 2.31 (1H, dd, J = 2.4, 19.6 Hz), 2.57-2.74 (2H, m), 2.81 (1H, ddt, J = 2.8, 8.4, 19.6 Hz), 3.03(1H, dd, J = 2.4, 6.0 Hz ), 3.98 (2H, dd, J = 1.6, 7.2 Hz), 6.94 (1H, bs), 7.13-7.21 (3H, m), 7.26 (2H, d, J = 7.6 Hz);
13C NMR (CDCl3) δ 20.8, 20.9, 32.3, 32.8, 33.4, 41.0, 44.9, 66.6, 126.1, 128.3 (2C), 128.5 (2C), 136.8, 141.0, 154.4, 171.0;
IR (neat) ν 1741, 1510, 1356, 1236, 1036, 701.0, 439.6 cm-1;
HRMS (ESI): [M+Na]+ calculated for C16H19NO4Na: 312.1212, found: 312.1225;
[α]D 20 +7.9 (c 0.95, CHCl3);
光学収率:94% ee (光学収率は、Chiralpak IBカラム(株式会社ダイセル製)を用いた高速液体カラムクロマトグラフ法により、溶出溶媒(ヘキサン:イソプロパノール=30:1)で溶出速度1.0 mL/minとしたとき、主エナンチオマーがtR = 30.7 min、副エナンチオマーがtR = 43.5 minであった。);
TLC :Rf = 0.41 (展開溶媒 酢酸エチル:ヘキサン=1:3)
1H NMR (CDCl3) δ 1.45(9H, s), 2.07 (3H, s), 2.40 (1H, bd, J = 18.4 Hz), 2.80-2.98 (2H, m), 3.75 (1H, bs), 4.13 (2H, dd, J = 5.6, 10.8 Hz), 7.05(1H, s);
13C NMR (CDCl3) δ 20.8, 27.8 (3C), 33.0, 41.4, 51.8, 65.6, 82.2, 138.8, 150.3, 170.1, 170.8;
IR (neat) ν1741, 1559, 1521, 1368, 1238, 1154, 1040 cm-1;
HRMS (ESI): [M+Na]+ calculated for C13H19NO6Na: 308.1110, found: 308.1108;
[α]D 21 -15.8 (c 0.30, CHCl3);
光学収率:99% ee (光学収率は、Chiralpak IBカラム(株式会社ダイセル製)を用いた高速液体カラムクロマトグラフ法により、溶出溶媒(ヘキサン:イソプロパノール=80:1)で溶出速度1.0 mL/minとしたとき、主エナンチオマーがtR = 13.3 min、副エナンチオマーがtR = 15.3 minであった。);
TLC :Rf = 0.34 (展開溶媒 酢酸エチル:ヘキサン=1:3)
1H NMR (CDCl3) δ 1.76-1.89 (1H, m), 2.03(3H, s), 2.04-2.10(1H, m), 2.27 (1H, dd, J = 2.4, 18.8 Hz), 2.59-2.68 (1H, m), 2.73 (1H, ddt, J = 2.8, 8.4, 19.2 Hz), 3.10 (1H, m), 3.51 (2H, t, J = 6.0 Hz), 3.79 (3H, s), 3.98 (2H, d, J = 6.8 Hz), 4.38 (2H, s), 6.86 (2H, dd, J = 3.2, 8.8 Hz) 6.90 (1H, s), 7.23 (2H, dd, J = 3.2, 8.8 Hz);
13C NMR (CDCl3) δ 19.2, 30.1, 30.7, 39.7, 42.6, 53.7, 65.8, 66.1, 71.1, 126.1, 128.3 (2C), 128.5 (2C), 136.8, 141.0, 154.4, 171.0;
IR (neat) ν1740, 1613, 1513, 1360, 1246, 1094, 1034 cm-1;
HRMS (ESI): [M+Na]+ calculated for C18H23NO6Na: 372.1423, found: 372.1433;
[α]D 20 -10.7 (c 0.26, CHCl3);
光学収率:92% ee (光学収率は、Chiralpak IBカラム(株式会社ダイセル製)を用いた高速液体カラムクロマトグラフ法により、溶出溶媒(ヘキサン:イソプロパノール=80:1)で溶出速度1.0 mL/minとしたとき、主エナンチオマーがtR = 29.7 min、副エナンチオマーがtR = 33.9 minであった。);
TLC :Rf = 0.27 (展開溶媒 酢酸エチル:ヘキサン=1:3)
下記化学反応式(XI)に示すように、環化工程、及び得られた中間体を精製せずに増炭工程を行った。
エノン体(7−((1R,5S)−3−ヒドロキシ−2−ニトロ−5−((E)−3−オキソオクタ−1−エニル)シクロペンチル)ヘプタン酸メチル)(11)のジアステレオマー4種の混合物の理化学分析結果
1H NMR (CDCl3) δ 0.86 (3H, t, J = 7.6 Hz), 1.20-1.35 (10H, m), 1.48-1.64 (6H, m), 1.92-2.02 (1H, m), 2.02-2.10 (1H, m), 2.25 (2H, t, J = 7.6 Hz), 2.31-2.42 (1H, m), 2.51 (2H, t, J = 7.6 Hz), 2.66-2.78 (1H, m), 3.62 (3H, s), 4.51 (1H, dd, J = 3.6, 7.6 Hz), 4.59-4.66 (1H, m), 6.11 (1H, d, J = 16.0 Hz), 6.56-6.64 (0.16H, m), 6.67 (0.6H, dd, J = 8.8, 16.0 Hz), 6.72-6.84 (0.24H, m)
13C NMR (CDCl3) δ 13.8, 22.4, 23.8, 24.7, 26.8, 28.7, 29.1, 31.4, 32.5, 33.9, 39.4, 40.6, 45.2, 49.4, 51.4, 76.1, 97.6, 130.7, 147.5, 174.2, 200.5 ;
IR (neat) ν 3455, 2931, 2861, 1735, 1666, 1627, 1627, 1550, 1442, 1373, 1249, 1172, 1110, 1064, 987.3, 763.6 cm-1;
HRMS (ESI): [M+Na]+ calculated for C21H35NO6Na: 420.2362, found:420.2355
TLC: Rf = 0.29, 0.35 (展開溶媒 酢酸エチル:ヘキサン=1:2)
下記化学反応式(X)に示すように、実施例22で得られたジアステレオマー4種の混合物について、エノン不斉還元工程、及び得られた還元体を精製せずに脱水工程を行った。
アリルアルコール体(7−((1R,5S)−3−ヒドロキシ−5−((S,E)−3−ヒドロキシオクタ−1−エニル)−2−ニトロシクロペンチル)ヘプタン酸メチル)のジアステレオマー4種の混合物の理化学分析結果
1H NMR (CDCl3) δ 0.88 (3H, t, J = 6.8 Hz), 1.20-1.35 (12H, m), 1.41-1.52 (4H, m), 1.52-1.63 (4H, m), 1.86-1.95 (1H, m), 1.95-2.04 (1H, m), 2.21-2.31 (1H, m), 2.28 (2H, t, J = 7.2 Hz), 2.48-2.60 (1H, m), 3.65 (3H, s), 4.03-4.11 (1H, m), 4.48 (1H, dd, J = 3.6, 8.0 Hz), 4.58-4.66 (1H, m), 5.45-5.62 (2H, m)
13C NMR (CDCl3) δ 13.9, 22.5, 24.6, 25.0, 26.3, 28.7, 29.0, 31.7, 32.1, 33.9, 37.3, 39.9, 45.0, 49.6, 51.4, 72.4, 76.2, 97.9, 132.0, 134.8, 174.3;
IR (neat) ν 3440, 2931, 2861, 2360, 1735, 1550, 1442, 1373, 1257, 1172, 1110, 1056, 971.9, 863.9, 763.6 cm-1;
HRMS (ESI): [M+Na]+ calculated for C21H37NO6Na: 422.2519, found:422.2511
Rf = 0.26, 0.30 (展開溶媒 酢酸エチル:ヘキサン=1:1)
ニトロアルケン体(7−((1R,5S)−5−((S,E)−3−ヒドロキシオクタ−1−エニル)−2−ニトロシクロペンタ−2−エニル)ヘプタン酸メチル)の理化学分析結果
1H NMR (CDCl3) δ 0.89 (3H, t, J = 6.8 Hz), 1.20-1.40 (10H, m), 1.42-1.66 (8H, m), 1.67-1.79 (1H, m), 2.26-2.38 (1H, m), 2.29 (2H, t, J = 7.6 Hz), 2.75-2.88 (2H, m), 2.96 (1H, bs), 3.66 (3H, s), 4.01-4.10 (1H, m), 5.51 (1H, dd, J = 6.8, 15.6 Hz), 5.67 (1H, dd, J = 6.8, 15.6 Hz), 6.91 (1H, s);
13C NMR (CDCl3) δ 13.9, 22.5, 24.7, 25.0, 26.0, 28.9, 29.3, 31.3, 31.7, 33.9, 35.8, 37.5, 45.1, 48.4, 51.4, 72.5, 133.1, 133.4, 136.6, 154.7, 174.2;
IR (neat) ν 2930, 2857, 1739, 1636, 1550, 1512, 1465, 1456, 1436, 1354, 1256, 1200, 1172, 972.9, 782.9, 728.9 cm-1;
HRMS (ESI): [M+Na]+ calculated for C21H35NO5Na: 404.2413, found:404.2423;
光学収率:94% ee (光学収率は、Chiralpak ICカラム(株式会社ダイセル製)を用いた高速液体カラムクロマトグラフ法により、溶出溶媒(ヘキサン:イソプロパノール=10:1)で溶出速度1.0 mL/minとしたとき、主エナンチオマーがtR = 19.3 min、副エナンチオマーがtR = 31.1 minであった。その面積比から、エナンチオマー過剰率は、94%eeであった。);
Rf = 0.62 (展開溶媒 酢酸エチル:ヘキサン=1:1)
Claims (16)
- 下記化学式(I)
- 前記環化工程の後に、還元剤で、前記A1を前記アルデヒド基から前記ヒドロキシメチル基に前記還元する還元工程を、有していることを特徴とする請求項1に記載の五員環含有化合物を製造する方法。
- 前記水不溶性有機溶媒が、ハロゲン含有有機溶媒、芳香族有機溶媒、炭化水素有機溶媒、及び非環状エーテル有機溶媒から選ばれる少なくとも何れかであり、前記酸素原子非含有水溶性有機溶媒が、ニトリル置換炭化水素有機溶媒であることを特徴とする請求項1〜5の何れかに記載の五員環含有化合物を製造する方法。
- 前記水不溶性有機溶媒が、ジクロロメタン、ジクロロエタン及びクロロホルムから選ばれる前記ハロゲン含有有機溶媒、ベンゼン、トルエン、及びキシレンから選ばれる前記芳香族有機溶媒、ペンタン、ヘキサン、及びヘプタンである前記炭化水素有機溶媒、及び/又はジエチルエーテルである前記非環状エーテル有機溶媒とし、前記酸素原子非含有水溶性有機溶媒が、アセトニトリルである前記ニトリル置換炭化水素有機溶媒とすることを特徴とする請求項6に記載の五員環含有化合物を製造する方法。
- 前記環化工程が、前記触媒と酸との共存下で、行われることを特徴とする請求項1〜7の何れかに記載の五員環含有化合物を製造する方法。
- 前記酸が、25℃における水中でのpKaを、4〜10とすることを特徴とする請求項8に記載の五員環含有化合物を製造する方法。
- 前記酸が、炭素数1〜3の脂肪酸誘導体、芳香族カルボン酸誘導体、ヒドロキシ芳香族誘導体、パーフルオロアルキル基含有アルコールからなる群より選ばれる少なくとも何れかの遊離酸であることを特徴とする請求項8〜9の何れかに記載の五員環含有化合物を製造する方法。
- 前記化学式(I)のR1中の前記置換基が、炭素数1〜4で直鎖状、分岐鎖状のアルコキシ基、エステル基、ハロゲン原子からなる群より選ばれる少なくとも何れかであることを特徴とする請求項1〜10の何れかに記載の五員環含有化合物を製造する方法。
- 前記触媒が、(S)−2−(ジフェニル((トリメチルシリル)オキシ)メチル)ピロリジン、又は(R)−2−(ジフェニル((トリメチルシリル)オキシ)メチル)ピロリジンであることを特徴とする請求項1〜11の何れかに記載の五員環含有化合物を製造する方法。
- 前記還元剤が、NaBH4、NaBH3CN、B2H6、BH3・Me2S、LiAlH4、NaB(O2CCH3)3H、及びLiBH(C2H5)3からなる群より選ばれる少なくとも何れかであることを特徴とする請求項2に記載の五員環含有化合物を製造する方法。
- 前記化学式(IV)中、前記R7は、置換基を有していてもよく、シクロヘキシル基、フェニル基、ナフチル基、フリル基、フェネチル基、ベンジルオキシエチル基、及びアルキルオキシカルボニル基から選ばれる何れかであることを特徴とする請求項14に記載の五員環含有化合物。
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