CN1015710B - 黄皮酰胺的制备方法 - Google Patents
黄皮酰胺的制备方法Info
- Publication number
- CN1015710B CN1015710B CN86107090A CN86107090A CN1015710B CN 1015710 B CN1015710 B CN 1015710B CN 86107090 A CN86107090 A CN 86107090A CN 86107090 A CN86107090 A CN 86107090A CN 1015710 B CN1015710 B CN 1015710B
- Authority
- CN
- China
- Prior art keywords
- methyl
- formula
- phenylpyrrolidin
- process according
- reaction
- 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.)
- Expired
Links
- 238000002360 preparation method Methods 0.000 title abstract description 8
- WGYGSZOQGYRGIP-MWDXBVQZSA-N (3r,4s,5s)-3-hydroxy-5-[(r)-hydroxy(phenyl)methyl]-1-methyl-4-phenylpyrrolidin-2-one Chemical compound C1([C@@H](O)[C@H]2N(C([C@H](O)[C@H]2C=2C=CC=CC=2)=O)C)=CC=CC=C1 WGYGSZOQGYRGIP-MWDXBVQZSA-N 0.000 title abstract description 3
- VRSSZILNAITUII-UHFFFAOYSA-N Clausenamide Natural products OC1C(=O)N(C)C=CC2=CC=CC=C2C1C1=CC=CC=C1 VRSSZILNAITUII-UHFFFAOYSA-N 0.000 title abstract description 3
- WGYGSZOQGYRGIP-UHFFFAOYSA-N neoclausenamide Natural products C=1C=CC=CC=1C1C(O)C(=O)N(C)C1C(O)C1=CC=CC=C1 WGYGSZOQGYRGIP-UHFFFAOYSA-N 0.000 title abstract description 3
- 150000001875 compounds Chemical class 0.000 claims abstract description 19
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 230000003647 oxidation Effects 0.000 claims abstract description 10
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 42
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 22
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Substances OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 15
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 15
- ZCSHNCUQKCANBX-UHFFFAOYSA-N lithium diisopropylamide Chemical compound [Li+].CC(C)[N-]C(C)C ZCSHNCUQKCANBX-UHFFFAOYSA-N 0.000 claims description 12
- 239000007858 starting material Substances 0.000 claims description 12
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 11
- 239000003960 organic solvent Substances 0.000 claims description 10
- -1 Benzyl-1-methyl-4-phenylpyrrolidin-2-one Chemical compound 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 6
- 239000003153 chemical reaction reagent Substances 0.000 claims description 6
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 229910000104 sodium hydride Inorganic materials 0.000 claims description 5
- 239000012312 sodium hydride Substances 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 claims description 4
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 150000008065 acid anhydrides Chemical class 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 230000001035 methylating effect Effects 0.000 claims description 3
- 150000002902 organometallic compounds Chemical class 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 claims description 3
- CYTQBVOFDCPGCX-UHFFFAOYSA-N trimethyl phosphite Chemical compound COP(OC)OC CYTQBVOFDCPGCX-UHFFFAOYSA-N 0.000 claims description 3
- YXHKONLOYHBTNS-UHFFFAOYSA-N Diazomethane Chemical compound C=[N+]=[N-] YXHKONLOYHBTNS-UHFFFAOYSA-N 0.000 claims description 2
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 claims description 2
- VUQUOGPMUUJORT-UHFFFAOYSA-N methyl 4-methylbenzenesulfonate Chemical compound COS(=O)(=O)C1=CC=C(C)C=C1 VUQUOGPMUUJORT-UHFFFAOYSA-N 0.000 claims description 2
- 229940102396 methyl bromide Drugs 0.000 claims description 2
- 238000007069 methylation reaction Methods 0.000 claims description 2
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 claims description 2
- NJSMSOSBMMZSSB-UHFFFAOYSA-N 1-methyl-4-phenylpyrrolidin-2-one Chemical compound C1C(=O)N(C)CC1C1=CC=CC=C1 NJSMSOSBMMZSSB-UHFFFAOYSA-N 0.000 claims 1
- CADSJHKUTNYRRM-UHFFFAOYSA-N 3-benzyl-3-hydroxy-1-methyl-4-phenylpyrrolidin-2-one Chemical compound C=1C=CC=CC=1CC1(O)C(=O)N(C)CC1C1=CC=CC=C1 CADSJHKUTNYRRM-UHFFFAOYSA-N 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 abstract 1
- 238000006257 total synthesis reaction Methods 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 56
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 36
- 238000006243 chemical reaction Methods 0.000 description 29
- 239000000243 solution Substances 0.000 description 28
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 24
- 239000000047 product Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 239000002585 base Substances 0.000 description 11
- 239000000284 extract Substances 0.000 description 9
- 238000002329 infrared spectrum Methods 0.000 description 9
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-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
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 239000008346 aqueous phase Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000004809 thin layer chromatography Methods 0.000 description 6
- QAEDZJGFFMLHHQ-UHFFFAOYSA-N trifluoroacetic anhydride Chemical compound FC(F)(F)C(=O)OC(=O)C(F)(F)F QAEDZJGFFMLHHQ-UHFFFAOYSA-N 0.000 description 6
- 238000005160 1H NMR spectroscopy Methods 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000012043 crude product Substances 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 150000002170 ethers Chemical class 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 125000002524 organometallic group Chemical group 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- HTSGKJQDMSTCGS-UHFFFAOYSA-N 1,4-bis(4-chlorophenyl)-2-(4-methylphenyl)sulfonylbutane-1,4-dione Chemical compound C1=CC(C)=CC=C1S(=O)(=O)C(C(=O)C=1C=CC(Cl)=CC=1)CC(=O)C1=CC=C(Cl)C=C1 HTSGKJQDMSTCGS-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- OKJPEAGHQZHRQV-UHFFFAOYSA-N Triiodomethane Natural products IC(I)I OKJPEAGHQZHRQV-UHFFFAOYSA-N 0.000 description 2
- 229960000583 acetic acid Drugs 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- QARVLSVVCXYDNA-UHFFFAOYSA-N bromobenzene Chemical compound BrC1=CC=CC=C1 QARVLSVVCXYDNA-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013375 chromatographic separation Methods 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- KQYZOQQWBTXSDF-UHFFFAOYSA-N clausmarin a Chemical compound O1C(=O)C(C(C)(C)C=C)=CC2=C1C=C1OC3(C)CCC(C(C)(O)C)OC3CC1=C2 KQYZOQQWBTXSDF-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- IUDJJYWEFUGGID-UHFFFAOYSA-N diethyl 1-methyl-5-oxo-3-phenylpyrrolidine-2,2-dicarboxylate Chemical compound C1C(=O)N(C)C(C(=O)OCC)(C(=O)OCC)C1C1=CC=CC=C1 IUDJJYWEFUGGID-UHFFFAOYSA-N 0.000 description 2
- RQXLSXSKRKTNTK-UHFFFAOYSA-N diethyl 5-oxo-3-phenylpyrrolidine-2,2-dicarboxylate Chemical compound CCOC(=O)C1(C(=O)OCC)NC(=O)CC1C1=CC=CC=C1 RQXLSXSKRKTNTK-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000003818 flash chromatography Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000004795 grignard reagents Chemical class 0.000 description 2
- 150000008282 halocarbons Chemical class 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 238000006317 isomerization reaction Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052987 metal hydride Inorganic materials 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical class O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- NHKJPPKXDNZFBJ-UHFFFAOYSA-N phenyllithium Chemical compound [Li]C1=CC=CC=C1 NHKJPPKXDNZFBJ-UHFFFAOYSA-N 0.000 description 2
- ANRQGKOBLBYXFM-UHFFFAOYSA-M phenylmagnesium bromide Chemical compound Br[Mg]C1=CC=CC=C1 ANRQGKOBLBYXFM-UHFFFAOYSA-M 0.000 description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 2
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- SGUVLZREKBPKCE-UHFFFAOYSA-N 1,5-diazabicyclo[4.3.0]-non-5-ene Chemical compound C1CCN=C2CCCN21 SGUVLZREKBPKCE-UHFFFAOYSA-N 0.000 description 1
- JMVIVASFFKKFQK-UHFFFAOYSA-N 1-phenylpyrrolidin-2-one Chemical class O=C1CCCN1C1=CC=CC=C1 JMVIVASFFKKFQK-UHFFFAOYSA-N 0.000 description 1
- ULQQGOGMQRGFFR-UHFFFAOYSA-N 2-chlorobenzenecarboperoxoic acid Chemical compound OOC(=O)C1=CC=CC=C1Cl ULQQGOGMQRGFFR-UHFFFAOYSA-N 0.000 description 1
- HOJZEMQCQRPLQQ-UHFFFAOYSA-N 4-phenylpyrrolidin-2-one Chemical compound C1NC(=O)CC1C1=CC=CC=C1 HOJZEMQCQRPLQQ-UHFFFAOYSA-N 0.000 description 1
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- ZTMZUZRCCYVUNY-UHFFFAOYSA-N C(C)(CC)OB(OC(C)CC)OC(C)CC.[Li] Chemical compound C(C)(CC)OB(OC(C)CC)OC(C)CC.[Li] ZTMZUZRCCYVUNY-UHFFFAOYSA-N 0.000 description 1
- NRLROCCHAWUFAK-UHFFFAOYSA-N CC(C)O[Ti](OC(C)C)(OC(C)C)C1=CC=CC=C1 Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)C1=CC=CC=C1 NRLROCCHAWUFAK-UHFFFAOYSA-N 0.000 description 1
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- KBEBGUQPQBELIU-CMDGGOBGSA-N Ethyl cinnamate Chemical compound CCOC(=O)\C=C\C1=CC=CC=C1 KBEBGUQPQBELIU-CMDGGOBGSA-N 0.000 description 1
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- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 229910000102 alkali metal hydride Inorganic materials 0.000 description 1
- 150000008046 alkali metal hydrides Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000003496 anti-amnesic effect Effects 0.000 description 1
- 239000006286 aqueous extract Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- ZUDYPQRUOYEARG-UHFFFAOYSA-L barium(2+);dihydroxide;octahydrate Chemical compound O.O.O.O.O.O.O.O.[OH-].[OH-].[Ba+2] ZUDYPQRUOYEARG-UHFFFAOYSA-L 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
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- 150000001721 carbon Chemical group 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- KBEBGUQPQBELIU-UHFFFAOYSA-N cinnamic acid ethyl ester Natural products CCOC(=O)C=CC1=CC=CC=C1 KBEBGUQPQBELIU-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 150000001893 coumarin derivatives Chemical class 0.000 description 1
- 239000000287 crude extract Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000006114 decarboxylation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002027 dichloromethane extract Substances 0.000 description 1
- ISOLMABRZPQKOV-UHFFFAOYSA-N diethyl 2-acetamidopropanedioate Chemical compound CCOC(=O)C(NC(C)=O)C(=O)OCC ISOLMABRZPQKOV-UHFFFAOYSA-N 0.000 description 1
- 229940043279 diisopropylamine Drugs 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- FVJFRFUSHCIRKP-UHFFFAOYSA-N disodium;hydrogen borate Chemical class [Na+].[Na+].OB([O-])[O-] FVJFRFUSHCIRKP-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002024 ethyl acetate extract Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229940124600 folk medicine Drugs 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002443 hepatoprotective effect Effects 0.000 description 1
- 241000411851 herbal medicine Species 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000005805 hydroxylation reaction Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- HZRMTWQRDMYLNW-UHFFFAOYSA-N lithium metaborate Chemical compound [Li+].[O-]B=O HZRMTWQRDMYLNW-UHFFFAOYSA-N 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- UBJFKNSINUCEAL-UHFFFAOYSA-N lithium;2-methylpropane Chemical compound [Li+].C[C-](C)C UBJFKNSINUCEAL-UHFFFAOYSA-N 0.000 description 1
- WGOPGODQLGJZGL-UHFFFAOYSA-N lithium;butane Chemical compound [Li+].CC[CH-]C WGOPGODQLGJZGL-UHFFFAOYSA-N 0.000 description 1
- NRUBUZBAZRTHHX-UHFFFAOYSA-N lithium;propan-2-ylazanide Chemical compound [Li+].CC(C)[NH-] NRUBUZBAZRTHHX-UHFFFAOYSA-N 0.000 description 1
- SDRRRXPWHKVEMP-UHFFFAOYSA-N lithium;triethyl borate Chemical compound [Li].CCOB(OCC)OCC SDRRRXPWHKVEMP-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- IWCVDCOJSPWGRW-UHFFFAOYSA-M magnesium;benzene;chloride Chemical compound [Mg+2].[Cl-].C1=CC=[C-]C=C1 IWCVDCOJSPWGRW-UHFFFAOYSA-M 0.000 description 1
- 150000004681 metal hydrides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000011987 methylation Effects 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- DHRLEVQXOMLTIM-UHFFFAOYSA-N phosphoric acid;trioxomolybdenum Chemical compound O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.OP(O)(O)=O DHRLEVQXOMLTIM-UHFFFAOYSA-N 0.000 description 1
- 239000000419 plant extract Substances 0.000 description 1
- RPDAUEIUDPHABB-UHFFFAOYSA-N potassium ethoxide Chemical compound [K+].CC[O-] RPDAUEIUDPHABB-UHFFFAOYSA-N 0.000 description 1
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- KXCAEQNNTZANTK-UHFFFAOYSA-N stannane Chemical compound [SnH4] KXCAEQNNTZANTK-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910000083 tin tetrahydride Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XTTGYFREQJCEML-UHFFFAOYSA-N tributyl phosphite Chemical group CCCCOP(OCCCC)OCCCC XTTGYFREQJCEML-UHFFFAOYSA-N 0.000 description 1
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical class [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 description 1
- SJHCUXCOGGKFAI-UHFFFAOYSA-N tripropan-2-yl phosphite Chemical compound CC(C)OP(OC(C)C)OC(C)C SJHCUXCOGGKFAI-UHFFFAOYSA-N 0.000 description 1
- QOPBTFMUVTXWFF-UHFFFAOYSA-N tripropyl phosphite Chemical compound CCCOP(OCCC)OCCC QOPBTFMUVTXWFF-UHFFFAOYSA-N 0.000 description 1
- JABYJIQOLGWMQW-UHFFFAOYSA-N undec-4-ene Chemical compound CCCCCCC=CCCC JABYJIQOLGWMQW-UHFFFAOYSA-N 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 201000001862 viral hepatitis Diseases 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/24—Oxygen or sulfur atoms
- C07D207/26—2-Pyrrolidones
- C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
- C07D207/267—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to the ring nitrogen atom
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/24—Oxygen or sulfur atoms
- C07D207/26—2-Pyrrolidones
- C07D207/273—2-Pyrrolidones with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to other ring carbon atoms
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- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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- C07D207/277—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
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Abstract
本文叙述了制备具有下式I结构的黄皮酰胺(clausenamide)的新的合成路线。已经发现,使下式II化合物氧化,可以得到立体化学上合适构型的产物-黄皮酰胺。本文还合成了用于黄皮酰胺全合成中的若干新化合物。这些化合物的通式是(A)式(A)中R是
Description
本发明是关于(±)3(S*),4(R*),5(R*),
7(S*)-3-羟基-5-α-羟苄基-1-甲基-4-苯基-吡咯烷-2-酮(黄皮酰胺(clausenamide))的制备方法。
已经知道,芸香料黄皮属植物anicata在非州一些地区作为民间药物使用〔J.Mester等,Planta Medica 32,81(1977)〕。也已经知道,小叶黄皮的粗提取物对心血管有作用,并且用薄层层析从黄皮属pentaphalla(Ro×b)分离出的两种香豆素衍生物,clausmarin A和B,具有解除痉挛的作用〔Dhan Prakash等,J.Chem.Soc.Chem.Commun 1978,281〕。此外,在中国的中草药中,黄皮属叶子的水提取物被认为是有效的保肝药物,并用来治疗急性和慢性病毒性肝炎。已经能够从这种提取物中分离出作为主要组分之一的(±)3(S*),4(R*),5(R*),7(S*)-3-羟基-5-α-羟苄基-1-甲基-4-苯基-吡咯烷-2-酮(式Ⅰ,黄皮酰胺)。
在动物试验中,黄皮酰胺显示抗遗忘作用和防止大脑缺氧的作用。因为进一步的药理学试验需要较大量的黄皮酰胺,同时,从植物中提取的方法又十分昂贵,从4公斤干燥的叶子中只能得到1.5克黄皮酰胺,所以提供化学合成黄皮酰胺的方法是必要的。
本发明是叙述制备(±)3(S*),4(R*),5(R*),7(S*)-3-羟基-5-α羟苄基-1-甲基-4-苯基-吡咯烷-2-酮(Ⅰ)的方法,该方法的特点是在碱存在时,在惰性有机溶剂中,如果合适,可用适当的辅助剂,使(±)4(R*),5(R*),7(S*)-5-α-羟苄基-1-甲基-4-苯基吡咯烷-2-酮(式Ⅱ)氧化。
借助本发明的方法,可以只生成“正确的”C3-C4-反式构型羟基化产物(Ⅰ),并且产率很高,这一结果显然使人感到十分惊奇。产物和从植物提取物中得到的黄皮酰胺是相同的。和提取方法相比较,新方法在较短时间内可制得较大量产物,同时,成本低。除此之外,新方法还避免了具有其他活性的植物成份的混杂,而除去这些活性物质是很困难的。
用下面的反应式代表该反应过程:
能够使用的氧化剂是有机或无机过氧化物,例如过氧乙酸,氯代过苯甲酸或过氧化钼/吡啶络合物,此外还有氧,臭氧或氧转移剂,例如,2-磺酰基-氧氮丙啶(2-Sulphonyl oxaziridine)。
可以应用的溶剂是在反应条件下不会变化的常用的惰性有机溶剂。优先选用的溶剂包括烃类(如苯、甲苯、二甲苯、己烷、环己烷或石油馏分),醚类(如乙醚、四氢呋喃或二噁烷),醇类(如甲醇、乙醇或丙醇),卤代烃类(如二氯甲烷、氯仿、四氯化碳或1,2-二氯乙烷),冰醋酸,乙腈或六甲基磷酸三酰胺。也可以应用上述溶剂的混合物。
普通的碱类可以用作形成烯醇式盐所需要的碱。优先选用的碱包括碱金属醇化物,碱金属氨,碱金属氢化物或有机碱金属化合物,如甲醇钠或甲醇钾、乙醇钠或乙醇钾、叔-丁醇钾、氢化钠、氨基钠、二异丙基氨基锂、丁基锂或苯基锂;也可以应用叔胺,如1,5-二氮杂双环(4·3·0)壬-5-烯或1,8-二氮杂双环(5·4·0)十一-7-烯。碱最好是二异丙基氨基锂、六甲基哌啶锂和正、仲或叔丁基锂或苯基锂。
碱、溶剂的选择,以及需要时所需辅助试剂的选择,都取决于所选用的氧化方法。
如果需要应用辅助剂,尤其当过氧化钼/吡啶或氧用作氧化剂时,应用的辅助剂是能够还原在反应中形成氢过氧化物中间体阶段的物质。为此,最好应用亚磷酸酯,尤其是三烷基或三芳基亚磷酸酯,如亚磷酸三甲酯、亚磷酸三乙酯、亚磷酸三丙酯、亚磷酸三异丙酯、亚磷酸三丁酯或亚磷酸三苯酯。
在六甲基磷酸三酰胺中用过氧化钼/吡啶和氧进行氧化作用特别合适,在每种情况下都应用亚磷酸酯作为辅助剂。应用亚磷酸三乙酯作辅助剂,用氧在溶剂,如四氢呋喃或六甲磷酸三酰胺中,或在混合溶剂中进行氧化作用,可以得到很高的产率。已经证明,应用二异丙基氨基锂或丁基锂作为碱,是有利的。
反应温度可以在-100℃和+20℃之间变动,反应最好是在-78℃和0℃之间进行。
根据本发明的方法,羟基化反应能够在常压或
在加压或减压下进行,一般在常压下进行。
执行本发明的方法时,对于每摩尔原料化合物,可使用1到5摩尔,最好1到2.5摩尔的碱和0.5到5摩尔,最好为0.5到2摩尔的辅助剂。
化合物Ⅱ的烯醇式盐通常首先在最合适的溶剂中借助于碱来制得,同时将干燥的氧通入溶液,并加入亚磷酸酯,直到用薄层层析检查,观察不到进一步的变化为止。用专家所熟悉的一般方法处理反应混合物。
起始原料化合物(式Ⅱ)是新的。它能够用以下方法制备。在此方法中(±)4(R*),5(R*)-5-甲酰基-1-甲基-4-苯基-吡咯烷-2-酮(式Ⅲ)和金属有机化合物(如格氏试剂、有机钛或锂)反应,反应在适当的溶剂中进行,温度范围从-20℃到+50℃,最好在-10℃到+30℃之间,若是条件适宜,在碳原子7上发生异构化。
特别适合于该反应的金属有机化合物是苯基溴化镁、苯基氯化镁或苯基-三异丙氧基钛。
适合的有机溶剂是通常用于与格氏试剂或其他有机金属试剂反应的所有惰性有机溶剂,包括有醚类,例如可以优先选用乙醚或四氢呋喃,如合适的话,它们可与己烷混合使用。
反应可按文献中类似的方法操作,例如可以参照以下文献的方法,D.Seebach,B.Weidmann和L.Widler:“Modern Synthetic Methods 1983”第217页及其后页(Verlag Salle und Sauer Lander)或在Houben-Weyl编的“Methoden der Organischen Chemie”第ⅩⅢ/2a卷,第289页和第302页及其后页,或N.L.Drake和G.B.Coo-ke:Organic Synthesis”第Ⅱ卷第406页及其后页(1963)。
根据使用的有机金属试剂的性质,能够首先形成在碳原子7上R*-构型的(±)4(R*),5(R*),7(R*)-5-α-羟苄基-1-甲基-4-苯基-吡咯烷-2-酮(式Ⅱa),
然后通过氧化,异构化形成(±)4(R*),5(R*)-5-苯甲酰基-1-甲基-4-苯基吡咯烷-2-酮(Ⅳ)
接着,还原Ⅳ,得到7-S*-构型产物(Ⅱ)
Ⅱa氧化到Ⅳ可用类似的已知方法进行,用二甲基亚砜作氧化剂,加入酸酐,尤为合适的是三氟乙酸酐,在适合的有机溶剂中反应,尤为合适的有机溶剂是卤代烃类,例如二氯甲烷或氯仿,或烃类,例如苯、甲苯、二甲苯或己烷,或者醚类,例如乙醚、二氧六环或四氢呋喃,或上述溶剂的混合物,如S.L.Huang,K.Omura和D.Swern在“Synthesis”1980年,第297页所叙述的。
Ⅳ还原为Ⅱ能够使用通常惯用的还原剂。金属氢化物和复合金属氢化物尤为合适,例如四氢硼酸锂(Lithium boranate),硼酸氢锂盐(Lithium hydridoborates),硼烷酸氢钠盐,硼氢化合物,铝酸氢钠盐,铝酸氢锂盐或氢化锡尤其适合该反应。硼酸氢锂盐,例如三乙基硼酸氢锂或三(1-甲基丙基)硼酸氢锂或硼氢化钠更好。
合适的溶剂是用氢化物进行还原反应时常用的惰性有机溶剂。以醚类,例如乙醚和四氢呋喃为最好。还原反应按类似的已知方法进行〔W.Friedrich sen在Houben-Wey1编的“Methoden der Organi Schen Chemie”卷Ⅷ/1b,第145页及其后页;和H.C.Brown,S.Krishnamurthy:Chem.Co-mmun.1972年,第868页〕。
化合物(Ⅱa)也能够用类似已知的操作方法使异构化,例如按O.Mitsunobu在“Synthesis”1981,第1页上叙述的方法。
下列反应式能够图示化合物Ⅱ的制备过起:
假如使用苯基-溴化镁作金属有机试剂,几乎只生成“不正确的”构型Ⅱa,并可以上述方式异构化形成“正确的”构型Ⅱ。
本发明也记述了三个新化合物(式Ⅱa,Ⅳ和Ⅲ)的制备方法。式Ⅲ的醛能够按下列反应式制备:
根据上述反应式,5,5-二乙酯基-4-苯基吡咯烷-2-酮(Ⅴ)用甲基化试剂,按反应步骤a进行甲基化。可用的甲基化试剂有溴甲烷,碘甲烷,对甲苯磺酸甲酯,重氮甲烷或硫酸二甲酯。如合适的话,反应可在碱(例如金属钠,氢化钠,氨基化钠,丁基锂或二异丙基氨基锂)存在下进行。反应可在合适的溶剂(如乙醚,四氢呋喃,二甲基甲酰胺或六甲基磷酸三酰胺)中进行。温度可达-20℃到+80℃,最好为0℃到+40℃。在二甲基甲酰胺中用碘甲烷进行甲基化尤其适宜。已经证明,氢化钠作为碱用于此反应是有利的。可按专家所熟悉的普通方法来进行反应和处理产物。
在反应步骤b中,按P.Pachaly在Chem.Bdr.104(2),412-39(1971)中叙述的类似方法,使5,5-二乙酯基-1-甲基-4-苯基-吡咯烷-2-酮(Ⅵ)水解和脱羧,得到异构体Vlla和Vllb的混合物。通过重结晶或层析方法分离顺/反异构体Vall和b以后,Vlla被还原成(±)4(R*),5(R*)-5-羟甲基-1-甲基-4-苯基-吡咯烷-2-酮(Vlll)(反应步骤c)。
用与上述还原Ⅳ为Ⅱ相同的方法和条件,将Ⅶa还原为Ⅷ。
用与上述氧化Ⅱa到Ⅳ相同的方法和条件,将Ⅷ氧化为Ⅲ(反应步骤d)。
起始化合物Ⅴ是已知化合物〔G.H.Cocolas,W.H.Hartung,J.Am.Chem.Soc.79,5203(1957);和F.Zyma lkowski,P.Pachaly,Chem.Ber.100,1137(1967)〕。
黄皮酰胺及其所有新的中间体的整个合成过程列于如下反应式:
制备例
实例1
(±)5,5-二乙酯基-4-苯基吡咯烷-2-酮
在室温和氮气流下,将含有18克(0.8克原子)金属钠的400毫升无水乙醇溶液滴加到1.6升无水乙醇和432克(2摩尔)乙酰氨基丙二酸二乙酯组成的悬浮液中。缓:加入564克(3.2摩尔)肉桂酸乙酯,然后在沸点温度加热混合物24小时。
反应完成后,让混合物降至室温,加入2.5升氯仿,用乙酸中和混合物。用水彻底清洗(每次用500毫升,洗5次),然后经MgSO4干燥,用旋转蒸发器浓缩。用少量丙酮溶解油状残留物,加入己烷直到有结晶析出,继续加入己烷,到滴入处观察不到混浊现象为止。抽气过滤,得到标题化合物398克(54%),熔点为97-99℃。母液经层析(甲苯/乙酸乙酯),又得到标题化合物85克(14%),总共得到413克(68%)。
红外光谱(KBr):γ=1770(酯)1700(酰胺),1H-核磁共振谱(300MHz,CDCl3):δ=0.84和1.28(在每种情况下:t,J=7.5Hz;6H,CH2CH3);ABX系统:δA=2.63,δB=2.96(JAB=17.3Hz,JAX=6Hz,JBX=9Hz;2H,C(3)-H);3.66和3.71(在各种情况下:m,2H,顺-CH2CH3);4.28(m,2H,反-CH2CH3);4.39(dd,JAX=6Hz,JBX=9Hz,1H,C(4)-H);6.95(br,1H,NH);和7.39(br,5H,C6H5)。
实例2
(±)5,5-二乙酯基-1-甲基-4-苯基-吡咯烷-2-酮
在室温和N2气流下,将含有100克(0.33摩尔)(±)5,5-二乙酯基-4-苯基吡咯烷-2-酮的500毫升无水二甲基甲酰胺的溶液滴加到9.64克(0.36摩尔)氢化钠和200毫升二甲基甲酰胺组成的悬浮液中。在室温下搅拌,直至气体停止产生为止,然后加入含有93.7克(0.66摩尔)碘甲烷的50毫升无水二甲基甲酰胺溶液,室温下搅拌混合物,直到起始反应物已经全部反应完(大约1小时,用薄层层析检查)。将反应混合物倒入2升缓冲溶液(pH=7)中,然后用乙醚萃取5次,每次用乙醚600毫升。用MgSO4干燥有机萃取液,真空蒸发去除溶剂,得到105克(99.6%)标题化合物(根据1H-NMR核磁共振光谱,纯度95%),该纯度产物即可直接用于下一步的反应。为了分析,样品在球管中蒸馏,沸点0.5∶240℃,Rf=0.36(甲苯/乙酸乙酯:2/1)。
红外光谱(膜)γ=1735(酯),1700(酰胺),1H-核磁共振光谱(500MH2,CDCl3):δ=0.9和1.33(在各种情况下:t,J=7.5Hz;6H,CH2CH3);ABX系统δA=2.66,δB=3.0(JAB=18Hz,JAX=6Hz,JBX=8.3Hz;2H,C(3)-H);3.06(S;3H,N-CH3);3.62和3.79(在各种情况下:m,2H,顺-CH2CH3);4.31(m,3H,反-CH2CH3)和C(4)-H)和7.26(M,5H,C6H5)。
实例3
(±)4(R*),5(R*)(I)和(±)(R*),5(S*)-5-乙酯基-1-甲基-4-苯基吡咯烷-2-酮(Ⅱ)
将49.5克(0.156摩尔)八水合氢氧化钡加到483毫升蒸馏水中,在70℃加热至几乎得到澄清的溶液。加入含有100克(0.313摩尔(±)5,5-二乙酯基-1-甲基-4-苯基-吡咯烷-2-酮的742毫升乙醇溶液,然后在700℃下搅拌混合物20分钟,直至起始原料已经全部反应(大约20分钟,用薄层层析检查)。冷却混合物,在冰冷却下酸化溶液到pH=1-2,在30℃-40℃浴温上减压除去乙醇。滤集得到固体,水相中加入氯化钠,用乙酸乙酯萃取3次,每次用200毫升。干燥有机萃取液,除去溶剂得到残留物和上述得到的固体合并,将其置于真空干燥中,在P4O10上高真空干燥24小时。固体物在充分搅拌下在油浴上加热到170℃,直到不再产生气体(5-10分钟)。冷却并进行快速层析分离(环己烷/乙酸乙酯=1/1,最后用乙酸乙酯)得到39.3克(50.7%)的(Ⅰ)(Rf=0.1)和19.6克(25.3%)的(Ⅱ)(Rf=0.20)(两种情况都是用环己烷/乙酸乙酯=1/1)。
红外光谱(KBr):δ=1736,1690Cm-1
1H-核磁共振谱(200MHz,CDCl3):Ⅰ:δ=0.83(t,J=7.5Hz;3H,CH2CH3)ABX系统:δA=2.67,δB=2.95(JAB=17.5Hz,JAX=9Hz,JBX=10Hz;2H,(C(3)-H);2.87(S,3H,N-CH3),3.75(m,2H,CH2CH3),3.91(q,J=9-10Hz,1H,C(4)-H),4.36(d,J=9Hz,1H,C(5)-H),7.28(m,5H,C6H5)。Ⅱ:δ=1.30(t,J=7.5Hz,3H,CH2CH3);ABX系统:δA=2.54,δB=2.82(JAB=18.5Hz,JAX=5Hz,JBX=9Hz,2H,C(3)-H),3.80(S,3H,N-CH3),3.53(ddd,J=9Hz,J=5Hz,J=4Hz,1H,C(4)-H),4.07(d,J=4Hz,1H,C(5)-H),4.27(m,2H,CH2-CH3)7.3(m,5H,C6H5)。
实例4
(±)4(R*),5(R*)-5-羟甲基-1-甲基-4-苯基吡咯烷-2-酮
在-15到-20℃,在N2气流下,将0.317摩尔LiB(Et)3H(为316.9毫升在四氢呋喃中的1M溶液)滴加到含有39.2克(0.159摩尔)顺式-4(R*),5(R*)-5-乙酯基-1-甲基-4-苯基吡咯烷-2-酮的390毫升无水四氢呋喃溶液中。
接着将反应混合物在0℃搅拌1小时,倒入约200毫升用冰冷却了的2N盐酸中,用乙酸乙酯萃取2次,每次200毫升。水相用氯化钠饱和,并用乙酸乙酯萃取2次,每次200毫升。所收集的有机萃取液用少量水洗涤,经MgSO4干燥,在旋转蒸发器中浓缩,残留物用少量乙醚使其结晶,然后用戊烷使其析出,直至在滴加处未见混浊现象为止。抽气过滤,干燥,得到标题化合物29.1克(89.2%),熔点为93-95℃。
红外光谱(KBr):γ=3324,1687cm-1
1H-核磁共振谱(300MHz,CDCl3):δ=ABM系统的AB部分,δA=2.59,δB=2.97(各种情况下:dd,JAB=
15Hz,JAM=7.5Hz,JBM=9Hz,2H,C(3)-H);2.97(S,3H,N-CH3)ABM系统的AB部分,δA=3.36,δB=3.62(各种情况下dd,JAB=11.2Hz,JAM=JBM=3Hz,2H,C(7)-H;3.72-3.85(m,2H,C(4)-H,C(5)-H);7.32(m,5H,C6H5)。
实例5
(±)4(R*),5(R*)-5-甲酰基-1-甲基-4-苯基吡咯烷-2-酮
在温度为-60℃,在N2气流下,用10分钟时间,将含有29.7毫升三氟乙酸酐的56毫升无水二氯甲烷溶液滴加到含有19.9毫升(0.28摩尔)无水二甲基亚砜的140毫升无水二氯甲烷溶液中。在同样温度下搅拌15分钟,滴加含有28.8克(0.140摩尔)4(R*),5(R*)-5-羟甲基-1-甲基-4-苯基吡咯烷-2-酮的250毫升二氯甲烷溶液,温度不超过-60℃。接着在-60℃下搅拌90分钟,短时将其温热到-30℃(5-15分钟),然后再冷却到-60℃。在此温度下,缓:加入56毫升无水三乙胺,在-60℃搅拌混合物30分钟,然后温热到室温。加入600毫升水,使分成两相,水相用二氯甲烷萃取3次,每次250毫升。收集的有机萃取液用水洗涤2次,每次300毫升。经硫酸镁干燥并蒸馏。得到28.3克(100%)标题化合物,其Rf=0.25(乙酸乙酯),1H核磁共振谱测定纯度为91%。这样得到的粗产物,在干燥之后(高真空,24小时),即可直接用于下一步反应。
红外光谱(CHCl3):γ=1734,1689cm-1
1H-核磁共振谱(300MHz,CDCl3):δ2.79(dd,J=5.3Hz,J=9.7Hz,2H,C(3)-H);2.91(S,3H,N-CH3);4.02(q,J=9.7Hz,1H,C(4)-H);4.30(dd,J=1Hz,J=9.7Hz,1H,C(5)-H;7.3(m,5H,C6H5),9.17(d,J=1Hz,1H,CHO)。
实例6
(±)4(R*),5(R*),7(R*)-5-α-羟苄基-1-甲基-4-苯基吡咯烷-2-酮
在N2气流下,将含有24.8克(16.7毫升,0.156摩尔)溴苯的44毫升无水四氢呋喃溶液滴加到3.84克Mg屑上,使四氢呋喃缓:沸腾。然后加入100毫升无水四氢呋喃,加热回流,直至镁屑全部溶解(1-2小时)。
混合物被冷至0℃,在激烈搅拌下,滴加含有24.7克(0.12摩尔)4(R*),5(R*)-5-甲酰基-1-甲基-4-苯基吡咯烷-2-酮的250毫升无水四氢呋喃溶液,使温度不超过5℃。为了便于更充分地搅拌,必要时须加入无水四氢呋喃。然后将反应混合物在0℃到5℃搅拌1小时,倒入350毫升0.5NHC1-冰水中,用乙酸乙酯萃取4次,每次用300毫升,并用二氯甲烷萃取2次,每次用300毫升。收集的乙酸乙酯和二氯甲烷萃取液(要分开!)分别用水洗涤2次,每次用水200毫升合并的萃取液经硫酸镁干燥。真空除去溶剂后剩下的残留物,加入100毫升乙醚研磨至出现结晶,然后慢慢加入500毫升戊烷混合物置于冰箱中过夜。抽气过滤,得到25克(74.3%)标题化合物,熔点为210-212℃。
为了分析,将产物在丙酮中再结晶,熔点为214-5℃。
红外光谱(KBr)γ=3362(br),1654cm-1
1H-核磁共振光谱(300MHz,d6-DMSO):δ=2.21,(S,3H,NCH3);2.24(dd,ABM系统A部分,JAB=15.7Hz,JAM=9.4Hz,1H,顺式-C(3)-H);3.05(dd,ABM系统B部分,JBM=12.7Hz,1H,反式-C(3)-H),3.80(dt,ABM系统M部分,JAM=8.5Hz,JAB=12.7Hz,J4.5=8.5Hz,1H,C(4)-H);4.15(dd,J=8.5Hz,J=1Hz,1H,C(5)-H);4.26(dd,J=6Hz,J=1Hz,1H,C(7)-H);5.35(d,J=6Hz,1H,OH);7.15-7.5(m,10H,C6H5)。
实例7
(±)4(R*),5(R*)-5-苯甲酰基-1-甲基-4-苯基吡咯烷-2-酮
于-60℃,在N2气流下,用10分钟时间,将含有18毫升三氟乙酸酐的34毫升无水二氯甲烷溶液滴加到12.24毫升(0.171摩尔)无水二甲基亚砜在87毫升无水二氯甲烷的溶液中。接着在相同的温度下将混合物搅拌15分钟,并滴加含有24克(0.085摩尔)4(R*),5(R*),(7R*)-5-α-羟苄基-1-甲基-4-苯基吡咯烷-2-酮的大约700毫升无水二氯甲烷溶液,使温度不要超过-60℃。将混合物在-60℃搅拌90分钟。短时温热到-30℃(9-10分钟),然后再冷到-60℃。在此温度下,缓:加入34.2毫升三
乙胺,混合物在-60℃搅拌20分钟,然后升温到室温。加入370毫升水,使分成两相,水相用二氯甲烷萃取3次,每次用230毫升。合并有机萃取液,用水洗涤2次,每次用水300毫升,经硫酸镁干燥,用旋转蒸发器浓缩。残留物加乙醚在旋转蒸发器中蒸发2次,每次加200毫升乙醚。得到标题化合物23.5g(100%),熔点为115-115℃。1H-核磁共振光谱分析,粗产品是纯的,即可直接用于下一步反应。
为了分析,在硅胶上进行层析分离制备样品,Rf=0.25(乙酸乙酯)熔点为121-2℃。
红外光谱(KBr):ν=1695,1682cm-1
1H-核磁共振光谱(300MHz,CDCl3):δ=2.78和2.91,(ABM系统的AB部分,JAB=16.5Hz,JAM=JBM=8.3Hz,2H,C(3)-H);2.88(S,3H,N-CH3);4.02(q,J=8.3Hz,1H,C(4)-H);5.42(d,J=8.3Hz,1H,C(5)-H);7.0,7.21,7.59和7.50(各种情况下:m,10H,C6H5)。
实例8
(±)4(R*),5(R*),7(S*)-5-羟甲基苯基-1-甲基-4-苯基吡咯烷-2-酮
于-15℃到-20℃,在N2气流下,滴加83毫摩尔LiB(Et)3H(83毫升的1M四氢呋喃溶液)到含有23克(82.3毫摩尔)4(R*),5(R*)-5-苯甲酰基-1-甲基-4-苯基吡咯烷-2-酮的200-270毫升无水四氢呋喃溶液中。然后反应混合物在0℃搅拌1小时,倒入100毫升用冰冷却的1NHCl中,加乙酸乙酯萃取2次,每次用200毫升。水相用氯化钠饱和,并用乙酸乙酯萃取2次,每次用200毫升。合并有机萃取液,经MgSO4干燥,在旋转蒸发器中浓缩。残留物溶解在二氯甲烷中,用水洗涤2次,每次100毫升。有机相用MgSO4干燥,在旋转蒸发器中浓缩,加100毫升乙醚使残留物结晶,搅拌下缓:加入戊烷,直到在滴入处不出现混浊为止。抽滤沉淀物,干燥后,得到16.6克(72%)标题化合物,其熔点为189-195℃。
根据1H-NMR测定,产物纯度为95%,即可直接用于下一步反应。
为了分析的目的,产物在丙酮中再结晶(熔点为197-8℃)。
红外光谱(KBr):γ=3251,1692cm-1
1H-核磁共振光谱(300MHz,DMSO):δ=1.97和2.05(ABM系统,JAB=13.5Hz,JAM=8.2Hz,JBM=13Hz,2HC(3)-H);2.91(S3H,N-CH3);3.82(dt,JAM=J4.5=8.2Hz,JBM=13Hz,1H,C(4)-H);4.27(dd,J=8.2Hz,J=1.5Hz,1H,C(5)-H);4.65(dd,J=1.5Hz,J=3.5Hz,1H,C(7)-H);5.34(d,J=3.5Hz,1H,OH);6.70,7.11和7.25各种情况下:m,10H,C6H5)。
实例9
(±)3(S*),4(R*),5(R*),7(S*)-3-羟基-5-α-羟苄基-1-甲基-4-苯基吡咯烷-2-酮(黄皮酰胺)
将含有17.7克(62.8毫摩尔)4(R*),5(R*),7(S*)-5-α-羟苄基-1-甲基-4-苯基吡咯烷-2-酮的490毫升无水四氢呋喃和130毫升无水六甲基磷酸三酰胺的溶液置于烧瓶中,这个烧瓶已经在抽真空时充分加热,并用纯氮冲洗过的。冷却该溶液到-70℃,在此温度下,滴加含有0.152摩尔二异丙基氨基锂(Lithium diisopro pylamide)的180毫升无水四氢呋喃/己烷溶液(此溶液制备方法:于-20℃到0℃,在含有22.1毫升二异丙胺的80毫升四氢呋喃溶液中,加入103毫升1.5N正丁基锂己烷溶液)。接着,在-70℃到-60℃搅拌混合物1小时,加入5.3毫升新蒸馏的亚磷酸三甲酯(溶解于少量无水四氢呋喃中),通入干燥的氧(用浓H2SO4与P4O10干燥)(50-100毫升/分钟)。根据薄层层析检查(SiO2;展开剂为乙酸乙酯/甲醇=2/1;产物Rf=0.3,起始化合物Rf=0.37,用磷钼酸喷雾剂显色),一旦发现产物/起始化合物比值不再改变时(2-3小时)用冰冷却下将混合物倒入600毫升0.5NHCl中,必要时将其酸化到pH3-4。
溶液分成两相,水相用乙酸乙酯萃取4次,每次300毫升。合并有机萃取液,用水洗3次,每次用水300毫升,经MgSO4干燥,用旋转蒸发器浓缩。浓缩残留物溶于50-100毫升乙醚中,搅拌混合物直至开始出现结晶,在搅拌下加入戊烷,直到在滴加处不再观察到混浊为止。混合物在冰箱中放置过夜,然后抽气过滤。得到17克粗的固体产物,除了标题化合物外,还含有35-40%的起始原料。为了纯化,粗产物在甲醇中重结晶2次,得到纯度约95%的标题化合物。在氧化铝(中性上进行层析分离,不损失产物还能回收纯的
起始原料。为此目的,粗产物吸附在硅胶上(加热使粗产物溶解于甲醇中,加入5份重量的硅胶;在旋转蒸发器中浓缩,加入乙酸乙酯到旋转蒸发器中,几次蒸发,直到成为不含甲醇的粉状为止)。将吸附物干粉装入有Al2O3(中性,50份重)的柱中,首先用乙酸乙酯洗,脱起始原料(快速层析分离,薄层层析)检查,高压液相色谱分析)。然后用乙酸乙酯/甲醇混合液(40/1,20/1然后用10/1)洗脱标题化合物。得到8.6克(46.1%)产物,其熔点为236-7.5℃(实际黄皮酰胺的熔点为236-7℃),纯度约98%(根据1H-NMR,产物含有约2%的起始原料)。能够回收5克纯的起始原料。
红外光谱(KBr):γ=3402,3321,1689cm-1
1H-核磁共振光谱(300MHz,DMSO):δ=3.01(S,3H,N-CH3);3.50(dd,J=8Hz,J=10.5Hz,1H,C(4)-H);3.82(dd,J=10Hz,J=7Hz,1H,C(3)-H);4.30(dd,J=8Hz,J=2Hz,1H,C(5)-H);4.65(dd,J=2Hz,J=3Hz,1H,C(7)-H),5.39(d,J=7Hz,1H,C(3)-OH);5.45(d,J=3Hz,1H,C(7)-OH);6.61-6.64(m,2H,芳基H)和7.03-7.28(m,8H,芳基H)。
Claims (7)
2、按照权利要求1所述的方法,其特征在于所述氧化是于-78℃至0℃进行的。
3、按照权利要求1所述的方法,其特征在于,所述氧化反应是在亚磷酸三甲酯存在下,在四氢呋喃或六甲基磷酸三酰胺或这些溶剂的混合物中进行的。
7、按权利要求6的方法,其中按式(Ⅷ)的(±)4(R*),5(R*)-5-羟甲基-1-甲基-4-苯基吡咯烷-2-酮是按下述方法制备的:
步骤a)中按式(Ⅴ)的5,5-二乙酯基-4-苯基吡咯烷-2-酮的甲基化反应是在乙醚、四氢呋喃、二甲基甲酰胺或六甲基磷酸三酰胺等溶剂中,在金属钠、氢化钠、氨基化钠、丁基锂或二异丙基氨基锂之类的碱存在下,于-20至+80℃进行,可用的甲基化试剂包括溴甲烷、碘甲烷、对甲苯磺酸甲酯、重氮甲烷或硫酸二甲酯等;
步骤b)中按式(Ⅵ)的5,5-二乙酯基-1-甲基-4-苯基吡咯烷-2-酮通过水解和脱羧反应,得到按式(Ⅶa)和(Ⅶb)的异构体混合物,
经异构体分离,通过在惰性溶剂中、用金属氢化物和复合金属氢化物还原式(Ⅶa)的(±)4(R*),5(R*)-5-乙酯基-1-甲基-4-苯基-吡咯烷-2-酮,得到式(Ⅷ)的(±)4(R*),5(R*)-5-羟甲基-1-甲基-4-苯基吡咯烷-2-酮。
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DE3537075.0 | 1985-10-18 | ||
DE19853537075 DE3537075A1 (de) | 1985-10-18 | 1985-10-18 | Verfahren zur herstellung von clausenamid |
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EP (1) | EP0219055B1 (zh) |
JP (1) | JPH0794430B2 (zh) |
KR (1) | KR870003981A (zh) |
CN (1) | CN1015710B (zh) |
AT (1) | ATE43836T1 (zh) |
CA (1) | CA1280427C (zh) |
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DE3717395A1 (de) * | 1987-05-23 | 1988-12-08 | Basf Ag | 5-phenyl-1,2,3a,4,5,9b-hexahydro-3h-benz(e) indole, ihre herstellung und verwendung als arzneimittel |
DE3717394A1 (de) * | 1987-05-23 | 1988-12-01 | Basf Ag | 3-phenyl-2-styryl-pyrrolidine, ihre herstellung und verwendung |
DE3927367A1 (de) * | 1989-08-19 | 1991-02-21 | Bayer Ag | Verfahren zur herstellung von dehydrocycloclausenamid und dessen derivate in der racemischen form und als optisch aktive (+) oder (-)-enantiomere |
DE3927370A1 (de) * | 1989-08-19 | 1991-02-21 | Bayer Ag | Verfahren zur herstellung von clausenamid und neoclausenamid und deren derivate |
US5049578A (en) * | 1990-03-09 | 1991-09-17 | E. R. Squibb & Sons, Inc. | 1-aroyl or 1-acyl-2-2pyrrolidinyl-3,5-dihydroxy alkanoic and alkenoic acids, salts, esters and lactones |
US6486169B1 (en) * | 2002-02-19 | 2002-11-26 | Yaguang Liu | Botanical drug for treatment and prevention of alzhimer's disease |
US6787564B2 (en) * | 2002-03-26 | 2004-09-07 | Institute Of Materia Medica, Chinese Academy Of Medical Sciences | Optically active clausenamides, process of the preparation thereof, pharmaceutical composition containing the same and their medical use |
CN102249976B (zh) * | 2011-06-10 | 2012-11-14 | 中国科学院化学研究所 | 一种光学纯的(-)-黄皮酰胺类化合物的制备方法 |
CN103285123B (zh) * | 2013-06-20 | 2015-04-22 | 广东医学院 | 黄皮果提取物在防治药源性肝炎药物中的应用 |
CN105017124A (zh) * | 2015-07-10 | 2015-11-04 | 广西师范大学 | 一种合成黄皮酰胺的新方法 |
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AT374457B (de) * | 1977-08-18 | 1984-04-25 | Hoechst Ag | Verfahren zur herstellung von neuen benzolsulfonamidderivaten |
CH646149A5 (de) * | 1981-02-05 | 1984-11-15 | Hoffmann La Roche | Pyrrolidin-derivat. |
DE3346623A1 (de) * | 1983-12-14 | 1985-07-04 | Bayer Ag, 5090 Leverkusen | N-glycosylierte harnstoffe, carbamate und thiocarbamate, verfahren zu ihrer herstellung sowie ihre verwendung |
DE3508025A1 (de) * | 1985-03-07 | 1986-09-11 | Bayer Ag, 5090 Leverkusen | Substituierte o-sulfonyl-glycosylamide, verfahren zu ihrer herstellung sowie ihre verwendung als arzneimittel |
JPS61245607A (ja) * | 1985-04-24 | 1986-10-31 | Hitachi Ltd | 周波数復調回路 |
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1985
- 1985-10-18 DE DE19853537075 patent/DE3537075A1/de not_active Withdrawn
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- 1986-10-03 US US06/915,309 patent/US4731456A/en not_active Expired - Lifetime
- 1986-10-08 DE DE8686113940T patent/DE3663809D1/de not_active Expired
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- 1986-10-08 EP EP86113940A patent/EP0219055B1/de not_active Expired
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- 1986-10-17 JP JP61245606A patent/JPH0794430B2/ja not_active Expired - Lifetime
- 1986-10-17 KR KR1019860008708A patent/KR870003981A/ko not_active Application Discontinuation
- 1986-10-18 CN CN86107090A patent/CN1015710B/zh not_active Expired
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CA1280427C (en) | 1991-02-19 |
JPH0794430B2 (ja) | 1995-10-11 |
CN86107090A (zh) | 1987-04-22 |
US4751315A (en) | 1988-06-14 |
JPS62187450A (ja) | 1987-08-15 |
US4731456A (en) | 1988-03-15 |
EP0219055B1 (de) | 1989-06-07 |
ATE43836T1 (de) | 1989-06-15 |
KR870003981A (ko) | 1987-05-06 |
EP0219055A1 (de) | 1987-04-22 |
DE3663809D1 (en) | 1989-07-13 |
ES2009758B3 (es) | 1989-10-16 |
DE3537075A1 (de) | 1987-04-23 |
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