CN1769262A - 苯甲酰基衍生物和其盐酸盐及其制备方法 - Google Patents
苯甲酰基衍生物和其盐酸盐及其制备方法 Download PDFInfo
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- CN1769262A CN1769262A CNA200510108930XA CN200510108930A CN1769262A CN 1769262 A CN1769262 A CN 1769262A CN A200510108930X A CNA200510108930X A CN A200510108930XA CN 200510108930 A CN200510108930 A CN 200510108930A CN 1769262 A CN1769262 A CN 1769262A
- Authority
- CN
- China
- Prior art keywords
- propoxy
- hydrochloride
- dibutylamino
- benzoyl
- butyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 title claims abstract description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims description 38
- 238000002360 preparation method Methods 0.000 title abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 23
- 150000003839 salts Chemical class 0.000 claims abstract description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000001257 hydrogen Substances 0.000 claims abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 5
- 239000000460 chlorine Substances 0.000 claims abstract description 3
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims description 28
- -1 propoxy- Chemical class 0.000 claims description 14
- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 claims description 12
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 10
- CSCFNOKJIMTZSC-UHFFFAOYSA-N benzoyl chloride;hydrochloride Chemical compound Cl.ClC(=O)C1=CC=CC=C1 CSCFNOKJIMTZSC-UHFFFAOYSA-N 0.000 claims description 7
- 239000003153 chemical reaction reagent Substances 0.000 claims description 6
- 229940095102 methyl benzoate Drugs 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- ANLMKUQEPXRMGV-UHFFFAOYSA-N n-butyl-n-(3-chloropropyl)butan-1-amine Chemical compound CCCCN(CCCC)CCCCl ANLMKUQEPXRMGV-UHFFFAOYSA-N 0.000 claims description 5
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 3
- 239000002585 base Substances 0.000 claims description 3
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000007127 saponification reaction Methods 0.000 claims description 2
- 125000005907 alkyl ester group Chemical group 0.000 claims 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- VFUIMOGHUGFEBP-UHFFFAOYSA-N 4-[3-(dibutylamino)propoxy]benzoyl chloride Chemical compound CCCCN(CCCC)CCCOC1=CC=C(C(Cl)=O)C=C1 VFUIMOGHUGFEBP-UHFFFAOYSA-N 0.000 abstract description 5
- 150000003840 hydrochlorides Chemical class 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- VZIKSCSPHIKEHX-UHFFFAOYSA-N 1-chloro-4-[3-(dibutylamino)propoxy]cyclohexa-2,4-diene-1-carbonyl chloride Chemical compound CCCCN(CCCC)CCCOC1=CCC(Cl)(C(Cl)=O)C=C1 VZIKSCSPHIKEHX-UHFFFAOYSA-N 0.000 abstract 1
- VXLCNTLWWUDBSO-UHFFFAOYSA-N Ethiazide Chemical compound ClC1=C(S(N)(=O)=O)C=C2S(=O)(=O)NC(CC)NC2=C1 VXLCNTLWWUDBSO-UHFFFAOYSA-N 0.000 abstract 1
- 241001275899 Salta Species 0.000 abstract 1
- 125000001309 chloro group Chemical group Cl* 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 239000012074 organic phase Substances 0.000 description 15
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 description 12
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 12
- XGAJABPTUOLUAE-UHFFFAOYSA-N 2-butyl-5-nitro-1-benzofuran Chemical compound [O-][N+](=O)C1=CC=C2OC(CCCC)=CC2=C1 XGAJABPTUOLUAE-UHFFFAOYSA-N 0.000 description 11
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 238000004128 high performance liquid chromatography Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 150000005826 halohydrocarbons Chemical group 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 241001597008 Nomeidae Species 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- 229940083608 sodium hydroxide Drugs 0.000 description 5
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 4
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 4
- 239000002841 Lewis acid Substances 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 150000007517 lewis acids Chemical class 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- 239000012429 reaction media Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 3
- 235000015320 potassium carbonate Nutrition 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- WYALRXZJYXWYGR-UHFFFAOYSA-N (2-butyl-5-nitro-1-benzofuran-3-yl)-(4-methoxyphenyl)methanone Chemical compound CCCCC=1OC2=CC=C([N+]([O-])=O)C=C2C=1C(=O)C1=CC=C(OC)C=C1 WYALRXZJYXWYGR-UHFFFAOYSA-N 0.000 description 2
- VJTDMGXBKGWRNM-UHFFFAOYSA-N (2-butyl-5-nitro-1-benzofuran-3-yl)-[4-[3-(dibutylamino)propoxy]phenyl]methanone;hydrochloride Chemical compound Cl.C1=CC(OCCCN(CCCC)CCCC)=CC=C1C(=O)C1=C(CCCC)OC2=CC=C([N+]([O-])=O)C=C12 VJTDMGXBKGWRNM-UHFFFAOYSA-N 0.000 description 2
- DZRJNLPOTUVETG-UHFFFAOYSA-N 1-benzofuran-2-yl(phenyl)methanone Chemical class C=1C2=CC=CC=C2OC=1C(=O)C1=CC=CC=C1 DZRJNLPOTUVETG-UHFFFAOYSA-N 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 2
- 239000011968 lewis acid catalyst Substances 0.000 description 2
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 description 2
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 description 2
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 description 2
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 description 2
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 2
- 229910003446 platinum oxide Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- ZJZKLBXEGZKOBW-UHFFFAOYSA-N (2-butyl-5-nitro-1-benzofuran-3-yl)-(4-hydroxyphenyl)methanone Chemical compound CCCCC=1OC2=CC=C([N+]([O-])=O)C=C2C=1C(=O)C1=CC=C(O)C=C1 ZJZKLBXEGZKOBW-UHFFFAOYSA-N 0.000 description 1
- YIYARJKYRBMMJG-UHFFFAOYSA-N 141645-23-0 Chemical compound C1=CC(OCCCN(CCCC)CCCC)=CC=C1C(=O)C1=C(CCCC)OC2=CC=C([N+]([O-])=O)C=C12 YIYARJKYRBMMJG-UHFFFAOYSA-N 0.000 description 1
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 229940126062 Compound A Drugs 0.000 description 1
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000002431 aminoalkoxy group Chemical group 0.000 description 1
- 125000004103 aminoalkyl group Chemical group 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- ONVOIOVJDDVCPQ-UHFFFAOYSA-N aniline 1-benzofuran Chemical compound C1(=CC=CC=C1)N.O1C=CC2=C1C=CC=C2 ONVOIOVJDDVCPQ-UHFFFAOYSA-N 0.000 description 1
- MXMOTZIXVICDSD-UHFFFAOYSA-N anisoyl chloride Chemical compound COC1=CC=C(C(Cl)=O)C=C1 MXMOTZIXVICDSD-UHFFFAOYSA-N 0.000 description 1
- 230000003288 anthiarrhythmic effect Effects 0.000 description 1
- 239000003416 antiarrhythmic agent Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 230000001335 demethylating effect Effects 0.000 description 1
- 238000010511 deprotection reaction Methods 0.000 description 1
- 125000004915 dibutylamino group Chemical group C(CCC)N(CCCC)* 0.000 description 1
- ZQTNQVWKHCQYLQ-UHFFFAOYSA-N dronedarone Chemical compound C1=CC(OCCCN(CCCC)CCCC)=CC=C1C(=O)C1=C(CCCC)OC2=CC=C(NS(C)(=O)=O)C=C12 ZQTNQVWKHCQYLQ-UHFFFAOYSA-N 0.000 description 1
- 229960002084 dronedarone Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hcl hcl Chemical class Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- HOBCFUWDNJPFHB-UHFFFAOYSA-N indolizine Chemical compound C1=CC=CN2C=CC=C21 HOBCFUWDNJPFHB-UHFFFAOYSA-N 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- IZDROVVXIHRYMH-UHFFFAOYSA-N methanesulfonic anhydride Chemical compound CS(=O)(=O)OS(C)(=O)=O IZDROVVXIHRYMH-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 231100000243 mutagenic effect Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 231100000299 mutagenicity Toxicity 0.000 description 1
- 230000007886 mutagenicity Effects 0.000 description 1
- UURRECHSOADBEG-UHFFFAOYSA-N n-butyl-n-(3-chloropropyl)butan-1-amine;hydrochloride Chemical compound Cl.CCCCN(CCCC)CCCCl UURRECHSOADBEG-UHFFFAOYSA-N 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011592 zinc chloride 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
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
- C07D307/80—Radicals substituted by oxygen atoms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C217/00—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton
- C07C217/02—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C217/04—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
- C07C217/06—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one etherified hydroxy group and one amino group bound to the carbon skeleton, which is not further substituted
- C07C217/14—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one etherified hydroxy group and one amino group bound to the carbon skeleton, which is not further substituted the oxygen atom of the etherified hydroxy group being further bound to a carbon atom of a six-membered aromatic ring
- C07C217/18—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one etherified hydroxy group and one amino group bound to the carbon skeleton, which is not further substituted the oxygen atom of the etherified hydroxy group being further bound to a carbon atom of a six-membered aromatic ring the six-membered aromatic ring or condensed ring system containing that ring being further substituted
- C07C217/22—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one etherified hydroxy group and one amino group bound to the carbon skeleton, which is not further substituted the oxygen atom of the etherified hydroxy group being further bound to a carbon atom of a six-membered aromatic ring the six-membered aromatic ring or condensed ring system containing that ring being further substituted by carbon atoms having at least two bonds to oxygen atoms
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Pharmacology & Pharmacy (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Furan Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Plural Heterocyclic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
本发明涉及下面通式的苯甲酰基衍生物及其盐酸盐,其中R代表氯或-OR1基,其中R1代表氢或C1-C4烷基,除去1-氯-4-(3-(二(正-丁基)氨基)丙氧基)苯甲酰基盐酸盐之外。本发明还涉及制备4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐的方法。
Description
本申请是申请日为2001年12月10日、申请号为01820378.7、发明名称为“2-丁基-3-(4-[3-(二丁基氨基)丙氧基]苯甲酰基)-5-硝基苯并呋喃盐酸盐及其制备”的发明专利申请的分案申请。
技术领域
本发明总的涉及苯甲酰基衍生物和其盐酸盐及其制备方法,和作为合成中间体的应用。
更具体地说,本发明的主题是结构式如下的2-丁基-3-(4-[3-(二丁基氨基)-丙氧基]苯甲酰基)-5-硝基苯并呋喃盐酸盐,在下文中该化合物称为“化合物A盐酸盐”。
已证明这种化合物特别可用作制备2-丁基-3-(4-[3-(二丁基氨基)丙氧基]苯甲酰基)-5-硝基苯并呋喃(在下文中称为“化合物A”)的中间体。
背景技术
化合物A在各种产品的制备中其本身可普遍地用作中间体,特别是用作最后合成氨基烷氧基苯甲酰基苯并呋喃衍生物的中间体,尤其是最后合成2-丁基-3-(4-[3-(二丁基氨基)丙氧基]苯甲酰基)-5-(甲烷磺酰氨基)苯并呋喃(通常称作强达隆(dronedarone))和其药物学上可接受的盐的中间体。
这种甲烷磺酰氨基-苯并呋喃衍生物和其药物学上可接受的盐及其治疗应用在专利EP 0471609中已被公开。已表明这种化合物在心血管领域,特别是作为抗心律失常药特别有益。
上述专利EP 0471609也公开了一种制备3-[4-(氨基烷氧基)苯甲酰基]苯并呋喃或苯并[b]噻吩衍生物的方法,该方法用氨基烷氧基苯甲酰基链连接到苯并呋喃或苯并[b]噻吩衍生物上。该方法首先使在对位上包含用甲基保护的氧的苯甲酰基加到所讨论的苯并呋喃或苯并[b]噻吩衍生物上,脱保护使羟基官能团再生,最后引入所需要的氨基烷基链。
更具体地说,用于制备化合物A的这种方法,包括下序步骤:
a)按照弗瑞德-克来福特反应条件,在四氯化锡存在下,2-丁基-5-硝基苯并呋喃与对甲氧苯甲酰氯反应,而后水解生成2-丁基-3-(4-甲氧基苯甲酰基)-5-硝基苯并呋喃;
b)所得到的化合物在2.25摩尔当量的氯化铝存在下脱去甲基,而后水解生成2-丁基-3-(4-羟基苯甲酰基)-5-硝基苯并呋喃;
c)所得到的化合物在碳酸钾存在下与1-氯-3-(二丁基氨基)丙烷缩合,得到所需要的化合物A。
然而,特别是由于使用氯化铝,这种方法存在一些缺点。这是因为工业规模实施这种方法,导致氢氧化铝大量排出,为了防止污染问题,氢氧化铝的处理证明是昂贵的。另外,因为2-丁基-3-(4-甲氧基苯甲酰基)-5-硝基苯并呋喃的诱变性(mutagenic properties),所以应避免使用它。
最后,按照这种三步骤方法,由2-丁基-5-硝基苯并呋喃生产所需要的化合物,最大产率仅60%。
因此,研究使用最少的合成步骤、由2-丁基-5-硝基苯并呋喃同时避免使用氯化铝制备化合物A的工业生产方法,无疑仍然是有意义的。
J.Med.Chem.,1984,27,1057-1066报道了一种更进一步的方法,该方法不经过羟基官能团保护步骤而使氨基烷氧基苯甲酰基链连接到苯并[b]噻吩衍生物上。然而,在第1064页上,这种方法仍规定使用特别大量的氯化铝,因为氯化铝约为9摩尔当量。
根据这种方法,在由二氯乙烷组成的有机相中,在氯化铝存在下,所述苯并[b]噻吩衍生物与氨基烷氧基苯甲酰基衍生物的氯化物的盐酸盐发生缩合反应。水解后,所需要的3-[4-(氨基烷氧基)苯甲酰基]苯并[b]噻吩衍生物的盐酸盐一部分从有机相,一部分从水相采用氯仿三次萃取回收得到,然后再用氢氧化钠进行处理。
发明内容
在开发本发明时,应用这种方法制备化合物A,采用如下步骤:
·在9摩尔当量氯化铝存在下,在有机相中,用4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐处理2-丁基-5-硝基苯并呋喃;
·水解,回收化合物A盐酸盐,并用氢氧化钠处理,生成所需要的化合物A。
然而,已证明这种方法不适于工业标准,这是因为,第一:因此产生大量的氢氧化铝;第二:杂质含量高,从而所需化合物A的产率低(20-30%)。
实际上,已意外发现在弗瑞德-克来福特反应中,以2-丁基-5-硝基苯并呋喃为起始原料,采用适量的路易斯酸,则有可能得到高产率的化合物A盐酸盐,产率高于90%,正如可以预见的,由于这种盐酸盐几乎全部不存在于水相中,但存在于所用的有机相中,则可能用一种特别便利的方法回收它,这样避免了如以前方法中相同的水相需要进行几次萃取。
另外,这种盐酸盐可非常容易地用来制备化合物A,根据本发明,化合物A的制备产率可以高于95%。
根据本发明,按下面方法制备化合物A盐酸盐:在有机相中,路易斯酸作为催化剂存在下,2-丁基-5-硝基苯并呋喃与4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐反应,而后水解生成所需要的化合物,再在有机相中回收得到。
根据弗瑞德-克来福特反应条件进行的反应,通常在环境温度下、在一种或多种溶剂组成的有机相中进行,其中溶剂选自卤代烃或非卤代烃,优选脂族、脂环族或芳香族卤代烃或非卤代烃。通常采用脂族、脂环族或芳香族的卤代烃、优选氯代烃,例如二氯甲烷、二氯乙烷或氯苯。
另外,路易斯酸可以是氯化铝、氯化锌、三氟化硼、氯化锡、四氯化钛,或优选氯化铁。可使用这些化合物的混合物。这些路易斯酸以不超过3摩尔当量的量使用,特别是以2-3摩尔当量、优选2.5摩尔当量的比例使用。
最后,4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐稍稍过量使用,例如以约1-1.3摩尔当量的量使用。
这种氯化物盐酸盐与制备化合物A盐酸盐中包括的其它化合物一样,是一种新产品。
然而,专利EP 0471609在其实施例28中提到:化合物1-氯-4-(3-(二(正丁基)氨基)丙氧基)苯甲酰基盐酸盐用于合成2-(正丁基)-3-[4-(3-(二(正丁基)氨基)丙氧基)苯甲酰基]-7-乙酯基中氮茚氢草酸化物 (2-(n-butyl)-3-[4-(3-(di(n-butyl)amino)propoxy)benzoyl]-7-
carbethoxyindolizine hydrogen oxalate)的个别例子。
因此,本发明另一主题涉及下面通式(2)的苯甲酰基衍生物及其盐酸盐:
其中R代表氯或-OR1基,其中R1代表氢或C1-C4烷基,除了1-氯-4-(3-(二(正丁基)氨基)丙氧基)苯甲酰基盐酸盐之外,通式(2)的苯甲酰基衍生物及其盐酸盐是特别可用作合成中间体的新工业产品,例如用于制备化合物A盐酸盐。
作为例子,可列举下面化合物:
·4-[3-(二丁基氨基)丙氧基]苯甲酸盐酸盐;
·4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐;
·4-[3-(二丁基氨基)丙氧基]苯甲酸甲酯。
本发明也涉及上面通式(2)化合物的制备方法。
4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐和通式(2)的其它化合物可按照下序步骤制备:
a)在碱性试剂,例如碱金属碳酸盐,如碳酸钾,存在下,1-二丁基氨基-3-氯丙烷与对羟基苯甲酸C1-C4烷基酯,例如对羟基苯甲酸甲酯,反应,生成通式(2)的4-[3-(二丁基氨基)丙氧基]苯甲酸C1-C4烷基酯,例如4-[3-(二丁基氨基)丙氧基]苯甲酸甲酯;
b)这样得到的酯在碱金属氢氧化物,例如氢氧化钠,存在下进行皂化,所形成的盐然后用盐酸进行处理,得到4-[3-(二丁基氨基)丙氧基]苯甲酸盐酸盐;
c)这样形成的盐酸盐然后用氯化剂,例如亚硫酰二氯,处理,生成所需要的化合物。
如上所述,化合物A盐酸盐可制得化合物A。
因此,本发明另一主题涉及化合物A的制备,方法如下:化合物A盐酸盐用碱性试剂进行处理,生成所需要的化合物,所述碱性试剂例如碱金属氢氧化物(如氢氧化钠)、碱金属碳酸盐或碱金属碳酸氢盐。优选使用碱金属碳酸氢盐,例如碳酸氢钠。
根据本发明优选方案,在所生成的化合物A盐酸盐中间体不分离的情况下,制备化合物A,即在制备化合物A盐酸盐的同一介质中,制备化合物A。
因此,根据本发明另一方案,按照下面方法制备化合物A:在由一种或一种以上选自卤代烃或非卤代烃的溶剂组成的有机相中,在最大3摩尔当量路易斯酸催化剂存在下,2-丁基-5-硝基苯并呋喃与4-[3(二丁基氨基)丙氧基]苯甲酰氯盐酸盐反应,再水解生成化合物A盐酸盐中间体且不需分离出来,该产物回收到有机相中,用碱性试剂进行处理,得到所需要的化合物A。
由于这种方法可以不需分离任何合成中间体、直接从2-丁基-5-硝基苯并呋喃得到化合物A,并且产率高,因为以原料硝基衍生物计算产率约为97%,所以这种方法特别有利。
如上所述,化合物A盐酸盐可用于制备强达隆和其药物学上可接受的盐。
因此,本发明也涉及化合物A盐酸盐作为中间体,用于最终合成强达隆和其药物学上可接受的盐。
例如,强达隆及其盐可以化合物A为原料来制备,本发明化合物A本身从其盐酸盐得到,该方法包括下列步骤:
a)在由一种或一种以上选自卤代烃或非卤代烃的溶剂组成的有机相中,在最大3摩尔当量路易斯酸催化剂存在下,2-丁基-5-硝基苯并呋喃与4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐反应,再水解生成化合物A盐酸盐中间体且不需分离出来,该产物回收到有机相中,用碱性试剂进行处理,生成化合物A;
b)得到的化合物A在适当催化剂(例如氧化铂)存在下氢化,得到5-氨基-2-丁基-3-(4-[3-(二丁基氨基)丙氧基]苯甲酰基苯并呋喃;
c)这样得到的5-氨基苯并呋喃衍生物在酸受体(例如三乙胺)存在下,与甲磺酰氯或甲磺酸酐反应,得到强达隆;如果需要,强达隆与有机或无机酸反应,生成该化合物药物学上可接受的盐。
上述步骤(c)和
(d)是上面提及到的专利EP 0471609中公开的已知步骤。
具体实施方式
下面非限制的实施例举例说明本发明。
在这些实施例中,所使用的缩写意思如下:
NMR:核磁共振
HPLC:高压液相色谱
制备
A.
1-二丁基氨基-3-氯丙烷
将288.4g(3.392mol)20%的氨水加入到1升的反应器中,然后在环境温度(22±2℃)下和10分钟内将618g(1.696mol)1-二丁基氨基-3-氯丙烷盐酸盐(分析66.5%)加入进去。该混合物在环境温度下搅拌45分钟,然后放置30分钟使其分离。在环境温度下,除去下层水相(pH=11);有机相用300ml去离子水洗涤,搅拌30分钟,通过放置进行分离30分钟,然后除去下层水相(pH=9)。
这样收集到346.3g所需化合物。
产率:99.4%。
实施例1
4-[3-(二丁基氨基)丙氧基]苯甲酸甲酯
将200g(1.3mol)对羟基苯甲酸甲酯和1.6升N,N-二甲基甲酰胺加入到2升的圆底烧瓶中。搅拌该混合物,将232g(1.66mol)碳酸钾加入其中。所得混合物加热至100℃,然后在10分钟内将上面步骤A.制备的1-二丁基氨基-3-氯丙烷加入进去。该反应介质在100±2℃下保持1小时,然后冷却至25℃。滤出无机盐,并用50mlN,N-二甲基甲酰胺冲洗二次,所得滤液在旋转蒸发器上在最高达85℃和5mmHg压力下进行浓缩。
这样得到472.7g黄色透明油状所需产物。
纯度(HPLC)
所需化合物:99.7%
对-羟基苯甲酸甲酯:0.1%
NMR谱(300MHz)
溶剂:CDCl3
浓度:40mg/ml
分析温度:300K
“Me”代表甲基。
化学位移δ±0.01ppm | 峰数 | 积分 | 耦合常数|J|±0.5Hz | 分配 |
7.97 | 双重峰 | 2 | 3JH-H≈9.0 | H(2)和H(2’) |
6.90 | 双重峰 | 2 | 3JH-H≈9.0 | H(3)和H(3’) |
4.06 | 三重峰 | 2 | 3JH-H≈6.5 | OCH2(5) |
3.87 | 单峰 | 3 | - | OCH3 |
2.57 | 三重峰 | 2 | 3JH-H≈7.0 | CH2(7) |
2.40 | 三重峰 | 4 | 3JH-H≈7.0 | CH2(8)和CH2(8’) |
1.90 | 五重峰 | 2 | 3JH-H≈7.0 | CH2(6) |
1.39 | 多重峰(变形的五重峰) | 4 | - | CH2(9)和CH2(9’) |
1.28 | 多重峰(变形的六重峰) | 4 | 3JH-H≈7.0 | CH2(10)和CH2(10’) |
0.87 | 三重峰 | 6 | 3JH-H≈7.0 | CH3(11)和CH3(11’) |
实施例2
4-[3-(二丁基氨基)丙氧基]苯甲酸盐酸盐
将436.3g4-[3-(二丁基氨基)丙氧基]苯甲酸甲酯和1.092升甲醇加入到2升的圆底烧瓶中。搅拌该混合物,并在约5分钟内将360g(1.8mol)20%的氢氧化钠加入进去。
所得混合物在约30分钟内加热至65℃,并在该温度下保持2小时。该反应介质冷却至30℃,再在旋转蒸发器上进行浓缩(浴温:30℃,压力30mmHg),得到937g残余物,而后加入2.8升去离子水稀释该残余物。使所得溶液冷却至10±2℃,然后在不超过20℃下将260ml(约3mol)36%的盐酸加入进去。
确认pH低于1后,使悬浮液冷却至10±2℃。该温度持续30分钟,滤出所形成的晶体,用200ml去离子水洗涤滤饼两次。而后该滤饼在通风的烘箱中在50℃下干燥至恒重(24小时)。
这样得到416.2g粉末状所需化合物。
产率:100%
纯度(HPLC)
所需化合物:99.5%
4-[3-(二丁基氨基)丙氧基]苯甲酸甲酯:0.1%
NMR谱(300MHz)
溶剂:CDCl3
浓度:40mg/ml
分析温度:300K
化学位移δ±0.01ppm | 峰数 | 积分 | 耦合常数|J|±0.5Hz | 分配 |
11.76和10.31 | 2个宽的单峰 | 2 | - | NH+和COOH |
7.93 | 双重峰 | 2 | 3JH-H≈8.5 | H(2)和H(2’) |
6.81 | 双重峰 | 2 | 3JH-H≈8.5 | H(3)和H(3’) |
4.10 | 三重峰 | 2 | 3JH-H≈5.5 | OCH2(5) |
3.26 | 多重峰 | 2 | - | CH2(7) |
3.04 | 多重峰 | 4 | - | CH2(8)和CH2(8’) |
2.38 | 多重峰 | 2 | - | CH2(6) |
1.78 | 多重峰 | 4 | - | CH2(9)和CH2(9’) |
1.37 | 六重峰 | 4 | - | CH2(10)和CH2(10’) |
0.93 | 三重峰 | 6 | - | CH3(11)和CH3(11’) |
实施例3
4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐
将63.3g(0.184mol)4-[3-(二丁基氨基)丙氧基]苯甲酸盐酸盐、300ml氯苯和2滴N,N-二甲基甲酰胺加入到圆底烧瓶中。使该混合物处于惰性气氛下,在约45分钟内将43.8g(0.368mol)亚硫酰二氯加入进去。该混合物在85±1℃下保持1小时,然后在逐渐增加真空度的情况下,蒸出约115g氯苯和亚硫酰二氯的混合物。
这样得到浅黄色粉末和块状的所需化合物。
NMR谱
溶剂:CDCl3
浓度:40mg/ml
分析温度:300K
化学位移δ±0.01ppm | 峰数 | 积分 | 耦合常数|J|±0.5Hz | 分配 |
12.19 | 宽的单峰 | 1 | - | NH+ |
8.03 | 双重峰 | 2 | 3JH-H≈9.0 | H(2)和H(2’) |
6.91 | 双重峰 | 2 | 3JH-H≈9.0 | H(3)和H(3’) |
4.18 | 三重峰 | 2 | 3JH-H≈5.5 | OCH2(5) |
3.2l | 多重峰 | 2 | - | CH2(7) |
3.02 | 多重峰 | 4 | - | CH2(8)和CH2(8’) |
2.42 | 多重峰 | 2 | - | CH2(6) |
1.79 | 多重峰 | 4 | - | CH2(9)和CH2(9’) |
1.38 | 六重峰 | 4 | - | CH2(10)和CH2(10’) |
0.95 | 三重峰 | 6 | - | CH3(11)和CH3(11’) |
实施例4
2-丁基-3-(4-[3-(二丁基氧基)丙氧基]苯甲酰基)-5-硝基苯
并呋喃盐酸盐
将上述实施例3得到的4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐加入到圆底烧瓶中,然后将35.1g(0.160mol)的2-丁基-5-硝基苯并呋喃加入进去。使该介质冷却到0-3℃之间,用冰/甲醇浴继续冷却,同时将66.9g(0.4mol)的氯化铁加入进去。使温度在20-22℃之间持续1小时30分钟,然后向介质中加入400ml去离子水进行水解,同时使介质温度保持在20-25℃之间。该混合物放置30分钟进行分离,除去上层水相。而后有机相用300ml去离子水洗涤5次。
这样得到油状所需化合物。
产率:约98%。
实施例5
2-丁基-3-(4-[3-(二丁基氨基)丙氧基]苯甲酰基)-5-硝基苯
并呋喃
将126.6g(0.368mol)4-[3-(二丁基氨基)丙氧基]苯甲酸盐酸盐、600ml氯苯和3滴N,N-二甲基甲酰胺加入到1升的圆底烧瓶中。使该混合物处于惰性气氛下,在约45分钟内将87.6g(0.736mol)亚硫酰二氯加入进去。所得混合物在85±1℃下保持1小时,生成4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐,然后在逐渐增加真空度的情况下,蒸出225g氯苯和亚硫酰二氯的混合物。使反应介质冷却至环境温度(20-22℃),再将70.2g(0.320mol)的2-丁基-5-硝基苯并呋喃加入进去。使该介质冷却到0-3℃之间,用冰/甲醇浴继续冷却,同时将133.8g(0.8mol)的氯化铁加入进去。
使温度升至约20℃并在20℃(20-22℃)处持续1小时30分钟。向反应介质中加入800ml去离子水进行水解,同时使介质温度保持在20-25℃之间。该混合物放置30分钟进行分离,除去上层水相。
所得到的有机相包含2-丁基-3-(4-[3-(二丁基氨基)丙氧基]苯甲酰基)-5-硝基苯并呋喃盐酸盐,而后用600ml去离子水洗涤5次。第6次用600ml含50g(0.595mol)碳酸氢钠的去离子水进行洗涤,生成所需化合物。在旋转蒸发器上除去氯苯(浴温:35℃,压力:10mmHg)。
这样得到192g所需化合物。
产率:约95%。
纯度(HPLC)
所需化合物:98.3%
4-[3-(二丁基氨基)丙氧基]苯甲酸:0.9%
分析:80-82%
实施例6
强达隆盐酸盐
A.
5-氨基-2-丁基-3-(4-[3-(二丁基氨基)丙氧基]苯甲酰基 苯并呋喃
在氢化装置中,在3.4大气压(3.44×105Pa)的氢气压力下,由实施例5所制备的20.4g(0.04mol)2-丁基-3-(4-[3-(二丁基氨基)丙氧基]苯甲酰基)-5-硝基苯并呋喃、200ml乙醇和0.6g氧化铂组成的介质进行搅拌。当压力到达2.7大气压(2.73×105Pa),终止反应,该反应需要约20分钟。
这样得到5-氨基-2-丁基-3-(4-[3-(二丁基氨基)丙氧基]苯甲酰基苯并呋喃。
产率:98.4%。
纯度(HPLC):95.28%。
B.
强达隆
向68.3g(0.15mol)前段A.得到的化合物和23.6g(0.23mol)三乙胺在750ml二氯乙烷中的溶液中,滴加17.6g(0.154mol)甲磺酰氯在375ml二氯乙烷中的溶液。该混合物搅拌20小时,然后倾入500ml水中。所得混合物通过放置进行分离,有机相用水进行洗涤并蒸发至干。这样得到的粗产物(79.5g;粗产率:100%)在硅胶柱(silica column)上用洗脱色谱法进行纯化(洗脱液:乙酸乙酯)。
这样收集到48g纯化的强达隆。
产率:61.6%。
用己烷处理这样得到的产物,得到44g一种晶体部分(根据HPLC的纯度:96.1%)和4g晶体部分(根据HPLC的纯度:99%)。
产率:65.3%。
C.
强达隆盐酸盐
将2g强达隆溶解于40ml的无水乙酸乙酯中。在搅拌下,将盐酸在乙醚中的溶液加入进去直至pH为3。几分钟后,强达隆盐酸盐开始沉淀。0.75小时后,滤出沉淀,得到2.03g白色产物。
这样制得强达隆盐酸盐。
熔点:143℃(丙酮)
Claims (4)
1.下面通式的苯甲酰基衍生物及其盐酸盐:
其中R代表氯或-OR1基,其中R1代表氢或C1-C4烷基,除去1-氯-4-(3-(二(正-丁基)氨基)丙氧基)苯甲酰基盐酸盐之外。
2.4-[3-(二丁基氨基)丙氧基]苯甲酸盐酸盐。
3.4-[3-(二丁基氨基)丙氧基]苯甲酸甲酯。
4.一种制备4-[3-(二丁基氨基)丙氧基]苯甲酰氯盐酸盐的方法,其特征是:
a)在碱性试剂存在下,1-二丁基氨基-3-氯丙烷与对-羟基苯甲酸C1-C4烷基酯反应,生成4-[3-(二丁基氨基)丙氧基]苯甲酸C1-C4烷基酯;
b)这样得到的酯在碱金属氢氧化物存在下皂化,所形成的盐然后用盐酸进行处理,得到4-[3-(二丁基氨基)丙氧基]苯甲酸盐酸盐;
c)这样形成的盐酸盐用氯化剂进行处理,生成所需化合物。
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CNB200510108930XA Expired - Fee Related CN100371314C (zh) | 2000-12-11 | 2001-12-10 | 苯甲酰基衍生物和其盐酸盐及其制备方法 |
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CN101993427B (zh) * | 2009-08-26 | 2012-10-10 | 成都伊诺达博医药科技有限公司 | 一种制备决奈达隆的方法 |
CN102070579A (zh) * | 2011-01-19 | 2011-05-25 | 上海医药工业研究院 | 2-正丁基-3-(4-取代丙氧基苯甲酰基)-5-取代氨基苯并呋喃的制备方法 |
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