TW200815413A - An enantioselective synthesis of pyrrolidines substituted with flavones, and intermediates thereof - Google Patents
An enantioselective synthesis of pyrrolidines substituted with flavones, and intermediates thereof Download PDFInfo
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- TW200815413A TW200815413A TW096122651A TW96122651A TW200815413A TW 200815413 A TW200815413 A TW 200815413A TW 096122651 A TW096122651 A TW 096122651A TW 96122651 A TW96122651 A TW 96122651A TW 200815413 A TW200815413 A TW 200815413A
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- 230000015572 biosynthetic process Effects 0.000 title abstract description 5
- 238000003786 synthesis reaction Methods 0.000 title abstract description 5
- 150000003235 pyrrolidines Chemical group 0.000 title abstract description 3
- 229930003944 flavone Natural products 0.000 title abstract 2
- 150000002213 flavones Chemical group 0.000 title abstract 2
- 235000011949 flavones Nutrition 0.000 title abstract 2
- 239000000543 intermediate Chemical group 0.000 title description 6
- 150000003839 salts Chemical class 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims description 71
- 238000000034 method Methods 0.000 claims description 40
- -1 diisopropylamino Chemical group 0.000 claims description 33
- 239000000203 mixture Substances 0.000 claims description 33
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 31
- 239000002904 solvent Substances 0.000 claims description 26
- 239000011541 reaction mixture Substances 0.000 claims description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 239000002585 base Substances 0.000 claims description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 18
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 16
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 13
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 12
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 125000003118 aryl group Chemical group 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 9
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 9
- 125000001424 substituent group Chemical group 0.000 claims description 7
- 125000005808 2,4,6-trimethoxyphenyl group Chemical group [H][#6]-1=[#6](-[#8]C([H])([H])[H])-[#6](-*)=[#6](-[#8]C([H])([H])[H])-[#6]([H])=[#6]-1-[#8]C([H])([H])[H] 0.000 claims description 6
- 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 claims description 6
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 6
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 claims description 6
- 150000004696 coordination complex Chemical class 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000012312 sodium hydride Substances 0.000 claims description 6
- 229910000104 sodium hydride Inorganic materials 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229940125782 compound 2 Drugs 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 5
- 239000003446 ligand Substances 0.000 claims description 5
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 4
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- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- 229940126062 Compound A Drugs 0.000 claims description 4
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 4
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000012649 demethylating agent Substances 0.000 claims description 4
- 125000005842 heteroatom Chemical group 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 239000002808 molecular sieve Substances 0.000 claims description 4
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- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
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- 235000021419 vinegar Nutrition 0.000 claims description 4
- 229910015900 BF3 Inorganic materials 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 239000002841 Lewis acid Substances 0.000 claims description 3
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 3
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 125000004216 fluoromethyl group Chemical group [H]C([H])(F)* 0.000 claims description 3
- 150000007517 lewis acids Chemical class 0.000 claims description 3
- AFVFQIVMOAPDHO-UHFFFAOYSA-N methanesulfonic acid Substances CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 3
- 239000012022 methylating agents Substances 0.000 claims description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 3
- 238000007259 addition reaction Methods 0.000 claims description 2
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052987 metal hydride Inorganic materials 0.000 claims description 2
- 150000004681 metal hydrides Chemical class 0.000 claims description 2
- 229940098779 methanesulfonic acid Drugs 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229920000137 polyphosphoric acid Polymers 0.000 claims description 2
- LVTJOONKWUXEFR-FZRMHRINSA-N protoneodioscin Natural products O(C[C@@H](CC[C@]1(O)[C@H](C)[C@@H]2[C@]3(C)[C@H]([C@H]4[C@@H]([C@]5(C)C(=CC4)C[C@@H](O[C@@H]4[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@@H](O)[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@H](CO)O4)CC5)CC3)C[C@@H]2O1)C)[C@H]1[C@H](O)[C@H](O)[C@H](O)[C@@H](CO)O1 LVTJOONKWUXEFR-FZRMHRINSA-N 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 claims 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims 3
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- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims 2
- ILAHWRKJUDSMFH-UHFFFAOYSA-N boron tribromide Chemical compound BrB(Br)Br ILAHWRKJUDSMFH-UHFFFAOYSA-N 0.000 claims 2
- 229910052747 lanthanoid Inorganic materials 0.000 claims 2
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 claims 1
- BWLBGMIXKSTLSX-UHFFFAOYSA-N 2-hydroxyisobutyric acid Chemical compound CC(C)(O)C(O)=O BWLBGMIXKSTLSX-UHFFFAOYSA-N 0.000 claims 1
- UCZQXJKDCHCTAI-UHFFFAOYSA-N 4h-1,3-dioxine Chemical compound C1OCC=CO1 UCZQXJKDCHCTAI-UHFFFAOYSA-N 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- WZKSXHQDXQKIQJ-UHFFFAOYSA-N F[C](F)F Chemical compound F[C](F)F WZKSXHQDXQKIQJ-UHFFFAOYSA-N 0.000 claims 1
- MPCRDALPQLDDFX-UHFFFAOYSA-L Magnesium perchlorate Chemical compound [Mg+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O MPCRDALPQLDDFX-UHFFFAOYSA-L 0.000 claims 1
- HTLZVHNRZJPSMI-UHFFFAOYSA-N N-ethylpiperidine Chemical compound CCN1CCCCC1 HTLZVHNRZJPSMI-UHFFFAOYSA-N 0.000 claims 1
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000005083 Zinc sulfide Substances 0.000 claims 1
- LEGQMXFHVQVJFY-UHFFFAOYSA-N [Mg].C(C)(=O)C1=CC=CC=C1 Chemical compound [Mg].C(C)(=O)C1=CC=CC=C1 LEGQMXFHVQVJFY-UHFFFAOYSA-N 0.000 claims 1
- CZLMUMZXIXSCFI-UHFFFAOYSA-N [Zn].[I] Chemical compound [Zn].[I] CZLMUMZXIXSCFI-UHFFFAOYSA-N 0.000 claims 1
- MGQFHPGSIVRIHF-UHFFFAOYSA-N acetonitrile;nickel Chemical compound [Ni].CC#N MGQFHPGSIVRIHF-UHFFFAOYSA-N 0.000 claims 1
- 229960002669 albendazole Drugs 0.000 claims 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 1
- 125000003342 alkenyl group Chemical group 0.000 claims 1
- 150000001356 alkyl thiols Chemical class 0.000 claims 1
- COOGPNLGKIHLSK-UHFFFAOYSA-N aluminium sulfide Chemical compound [Al+3].[Al+3].[S-2].[S-2].[S-2] COOGPNLGKIHLSK-UHFFFAOYSA-N 0.000 claims 1
- JNGZXGGOCLZBFB-IVCQMTBJSA-N compound E Chemical compound N([C@@H](C)C(=O)N[C@@H]1C(N(C)C2=CC=CC=C2C(C=2C=CC=CC=2)=N1)=O)C(=O)CC1=CC(F)=CC(F)=C1 JNGZXGGOCLZBFB-IVCQMTBJSA-N 0.000 claims 1
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- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims 1
- GBRBMTNGQBKBQE-UHFFFAOYSA-L copper;diiodide Chemical compound I[Cu]I GBRBMTNGQBKBQE-UHFFFAOYSA-L 0.000 claims 1
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- 150000004141 diterpene derivatives Chemical class 0.000 claims 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims 1
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- PJJJBBJSCAKJQF-UHFFFAOYSA-N guanidinium chloride Chemical compound [Cl-].NC(N)=[NH2+] PJJJBBJSCAKJQF-UHFFFAOYSA-N 0.000 claims 1
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- CITILBVTAYEWKR-UHFFFAOYSA-L zinc trifluoromethanesulfonate Chemical compound [Zn+2].[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F CITILBVTAYEWKR-UHFFFAOYSA-L 0.000 claims 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims 1
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- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims 1
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- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- ZDGGJQMSELMHLK-UHFFFAOYSA-N m-Trifluoromethylhippuric acid Chemical compound OC(=O)CNC(=O)C1=CC=CC(C(F)(F)F)=C1 ZDGGJQMSELMHLK-UHFFFAOYSA-N 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 230000007721 medicinal effect Effects 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229960000485 methotrexate Drugs 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000001421 myristyl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- FEBJSGQWYJIENF-UHFFFAOYSA-N nickel niobium Chemical compound [Ni].[Nb] FEBJSGQWYJIENF-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- CAMJPMYWRKKZNK-UHFFFAOYSA-N nitroformaldehyde Chemical compound [O-][N+](=O)C=O CAMJPMYWRKKZNK-UHFFFAOYSA-N 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 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
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 125000000913 palmityl 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])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
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 229960005489 paracetamol Drugs 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- WVWHRXVVAYXKDE-UHFFFAOYSA-N piperine Natural products O=C(C=CC=Cc1ccc2OCOc2c1)C3CCCCN3 WVWHRXVVAYXKDE-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Chemical class 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000022983 regulation of cell cycle Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229930002330 retinoic acid Natural products 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000011734 sodium Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 125000004079 stearyl 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])C([H])([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
- 230000000707 stereoselective effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- XSOKHXFFCGXDJZ-UHFFFAOYSA-N telluride(2-) Chemical compound [Te-2] XSOKHXFFCGXDJZ-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- IAQRGUVFOMOMEM-ONEGZZNKSA-N trans-but-2-ene Chemical compound C\C=C\C IAQRGUVFOMOMEM-ONEGZZNKSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229960001727 tretinoin Drugs 0.000 description 1
- 125000001680 trimethoxyphenyl group Chemical group 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- 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
- C07D207/04—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 no double bonds between ring members or between ring members and non-ring members
- C07D207/08—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 no double bonds between ring members or between ring members and non-ring members with hydrocarbon radicals, substituted by hetero atoms, attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrrole Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Plural Heterocyclic Compounds (AREA)
Description
200815413 九、發明說明: 【發明領域】 本發明係關於-種以黃酮取代吼洛烧之(吟反式對映 異構物的對映選擇合成,其係由分子式j的化合物或其鹽 類所表不’其為細胞週期依賴激酶的抑制劑及可用於增生 性失調例如癌症的治療。 【發明背景】 "細胞週期依賴激酶(CDKs)為細胞週期控制的必需激 酶,細胞週期依賴激酶的抑制劑係預期為擁有對廣範圍增 生性疾病的特別是癌症的醫療效用。結果,CDKs已標的用 於藥物發現及已辨識及研究數個小分子CDKs抑制劑,由 下列通式1所表示的CDK/細胞週期複合物之抑制劑; ΟΗ Ο
Formula 1 分子式1 其中Ar係定義於詳細敛述; 已敘述於pct專利申請案第pCT/IB2006/052002號, 其係併入本文做為參考,這些化合物顯現良好選擇性及抗 各種增生細胞血源的細胞毒性。在先前所提及專利申請案 所揭示的新穎化合物,具兩個對掌中心及於是,可以四種 對映異構物存在,亦即(+)_及式、、㈠_及式及(+)_廣式、㈠_ 7 200815413 廣4。對約生在醫藥工業愈加重要,如同由超過8〇%目前 發展的藥物具對掌性質之事實而證明,各種對映異構物於 身體可發展完全不__,使得所投藥 異構物形式的僅其中-種為有效的。在分子式 情況’已發現僅(+>W對映異構物具活性然而㈠_及式對 映異構物為不活性的。由本㈣者所進行的分子式丨消旋 化合物效用及其個別對映異構物的廣泛研究已產生申請者 的PCT專利申請案第PCT/IB2006/052002號。由分子式j 所表示的任何化合物的(+>及式對映異構物,基本上不含其 的其他異構物,之投藥實質上產生藥物劑量的降低。因為 由为子式1所表示的化合物的活性(+)_及式對映異構物做為 細胞週期依賴激酶的抑制劑之重要性,存在發展一種經濟 及有效合成方法以製造它們之需求。 申請者的PCT專利申請案第PCT/IB2006/052002號敘 述一種由下列分子式1所表示的以黃酮取代吡咯烷之(+)_ 及對映異構物的製備方法; 分子式1 其中Ar係定義於詳細敘述; 如在PCT專利申請案第PCT/IB2006/〇52002號所敘述 的方法係涉及中間化合物的分解及所分解中間化合物成為 由分子式1所表示的化合物之後續轉化反應。例如,(+)_ 及式二2-(2_氣本基)-5,7-二經基-8-(2-經曱基_1_曱基比略垸 •3-基)-苯並π比喃_4_酮係由中間體,稱之為(土)-及式二以_曱基 _3-(2,4,6_三甲氧基-苯基)_吼咯烷_2_基]曱醇,的分解及該中 羥 Ο
200815413 柄錄蝴+)_縣2似苯基)办二 二化;5廡工甲^ 1_甲基-吡咯烷_3_基)_苯並吡喃_4_酮的後續 =^# ° (掏娜峨涉及以 式對映異構體的步驟以得到相對應(+)及㈠-反 、、、J貞接著為藉祕晶分離該所轉映異構物 ;;;使用驗處理以產生所欲㈠-反式對映異構物,此分解 〜顯者加卫及亦涉及分解劑的使用使得該方法為昂 二、’料_j的部份回收為可行的但是此伽收為昂貴 、因為其需要額外加卫及亦伴隨廢棄物生成 ,不欲的對映 鍵中門體蚊裝棄,於實驗室賴合成所得到關 ^中間體的最大理論產率僅為篇因為損失-半的消旋 旦此產率可朗為高對掌純度的需求(>對映異構物 ==)= it #減少’於是,存在發展替代不對稱合成的清 異^ i其可咖及概的嫌倾欲(+>反式對映 、此毛月目的為提供一種分子式1所表示化合物的(+)- 反式對映異構物神代製備方法,其為—麟映選擇方 法。本發明方法使得藉由克服習知分解技術的缺點而使有 效大規模合成可進行。 【發明摘要】 本發日月提供—種由分子式1所表示化合物的(+)-反式對 映異構物的對映選擇合成之_方法: 9 200815413 〇H 〇
Formula 1 分子式1 Γ ο 其中Ar係如在詳細敘述中所定義。
〇Me MeO
Formula A ^發财法亦涉及下列分子式A化合物_映選擇合 成〜、為分子式1化合物的掌性前軀體;
分子式A 構物St::去提供一種分子式1化合物的(+>反式對映異 、、、擇合成,其避免先前所提及方法的缺點。 $明枝亦具以成本及咖為誠_外優點因為 在该方法的所有中_為結晶及不需進-步純化。 本發明詳細敘述 物的ίΓΛ方法係特定相種由分子式1所表示化合 物的(+>反式對映異構物的對映卿合成方法; 200815413 OH Ο
Formula 1 分子式1 其中Ar係為苯基,其為未經取代的或是由1、2、或3 個相同或不同取代基所取代的,這些取代基係選自:鹵素、 硝基、氰基、CrC4-烧基、氟甲基、二氟甲基、三氟甲基、 羥基、CrC4-烷氧基、羧基、CrC4-烷氧基羰基、crCr烯 基羥基、CONH2, CONR1R2, S02NR1R2、環烷基、NR1R2 及 SR3 ; 其中Ri及112每一個係獨立地選自:氫、q-Czr炼基、 Ci-C4-炫基幾基及芳基、或是R!及R2,一起與它們所鍵 結的氮原子形成五或六元環,其可選擇性地包含至少一個 額外雜原子;及 &係選自氫、CVCV燒基、芳基及SR4,其中私係為 CrC4_烷基或芳基。 為本揭示目的,下文所列為用於敘述本發明化合物的 各種名稱之定義,這些定義應用於這些名稱當這些名稱個 別地或是做為較大分子的一部分用於專利說明書全文時(除 非它們另外於特定實例受限制)。它們不應以文獻方式解 釋,它們不為通用定義及僅相關於此申請案。 名稱”炫基’’係表示飽和脂肪基的自由基,其包含直鏈垸 200815413 基及支鏈烧基。而且,除非另外說明,名稱,,絲,,包含未經 取代的絲n或更多不同取代基所取代眺基。包含 自1至20碳原子的烷基餘基之實例為:曱基、乙基、丙基、 丁基、戊基、己基、庚基、辛基、壬基、癸基、十一烷基、 十二烷基、十四烷基、十六烷基、十八烷基及二十烷基, 所有這些餘基的ι>異構物 '異丙基、異丁基、丨_甲基丁基、 異戊基、新戊基、2,2_二曱基丁基、2_f基戊基、3_甲基戊 基、異己基、2,3,4-三甲基己基、異癸基、第二丁基、或第 三-丁基。 名稱’’環烧基,,係表示約3至7個碳原子的非芳香族單或 多環環狀系統,其可為未經取代的或是由一或更多不同取 代基所取代的。環烷基的實例包含環丙基、環丁基、環戊 基、環己基及其類似物。 名稱烧氧基”纽此處使帛時係表示具氧自由基接附 於其上的如上所敘述的烷基。代表性烷氧基包含甲氧基、 乙氧基、丙氧基、第三-丁氧基及其類似物。 名稱”鹵素”係表示氣、溴、氟及蛾。 名稱π雜原子"係表示一種氮、氧、硫及磷。 名稱”對映異構物過量,,係表示存在於產品混合物中 一個對映異構物的量與另-個對映異構物的量之間的差。 於是例如,對映異構物過# 96%縣示—種具98%的一個 對映異構物及2%另-個對映異構物的產品混合物。 當立體化學說明於結構中此表示一種相對而非絕對结 構。 12 200815413 在本發明一個具體實施例,提供一種化合物,㈠_反式 仆甲基-3_(2,4,6-三曱氧苯基)^比咯烷-2_基)甲醇,或是其醫 藥可接受鹽類,的對映選擇合成方法,此化合物係由下列 分子式A表示; OMe
Formula A
分子式A (後文稱為化合物A), 其包含步驟: (a)在觸媒複合物、鹼及分子篩存在下於溶劑中進行丙 一酸一甲酯成為(E)_曱基-2-硝基-3_(2,4,6-三曱氧苯基)丙烯 酸酯的立體特定性麥可加成反應,其中該觸媒複合物包含 掌性雙(噪唑琳)配位基及金屬複合物,以得到由下列分子式 B所表示的(+)_二甲基_3_辅基_2_(2,4,6_三甲氧苯基)丙烧 _1,1,3-三羧酸酯; OMe
Formula B 分子式B (後文稱為化合物B); 13 200815413 (b)以還原劑在適當溶劑中處理在步驟(a)所得到的化合 物B以得到由下列分子式c所表示的(+)-二甲基5-氧代 _3_(2,4,6-三甲氧基苯基)』比咯烷_2,4_二碳酸酯;
分子式C (後文稱為化合物C); (c)以氣化鈉於溶劑中處理化合物c及加熱所得反應混 合物至在120 - 170。(:範圍的溫度以得到由下列分子式D 所表示的(+)-甲基5-氧代_3-(2,4,6-三甲氧基苯基)-吡咯烷·2_ 碳酸酯,其係為順式及反式異構物的混合物;
OMe COOMe
分子式D (後文稱為化合物D); (d)將化合物ϋ與甲基化試劑及選自··鹼金屬氫化物及 鹼金屬碳酸鹽的鹼,於溶劑中,反應,接著為將所得順式 及反式化合物的混合物與驗金屬氫氧化物於醇中進行加驗 水解並加熱至在50 - 1〇〇 %範圍的溫度以得到㈠-反式 200815413 曱基5-氧代-3<2,4,6_三甲氧基苯基)_吡咯烷_2_羧酸,其係 下列分子式Ε所表示; OMe
rS
MeO OMe ΛχΟΟΟΗ μ
Formula Ε 分子式Ε (後文稱為化合物Ε)為單一順式異構物; (e)將化合物Ε以還原劑在溶劑中處理以得到所欲(_)_ 反式仆甲基_3_(2,4,6_三甲氧基苯基)轉燒_2 分子式A所表示。 鮮由 、在一個具體實施例,本發明提供一種由所敘述新 法所得到的化合物A之使用,以製備由分子式丨 、 化合物。 1衣不的 Ο 根據本發明另一具體實施例,提供一種由分子式 表示的化合物的(+)-反式對映異構物的製備方法; 所 ΟΗ Ο
分子式1 其中Ar為苯基’其為未經取代的或是由^。 相同或不同取代基所取代的,這些取代基係選自.二或 15 國素 200815413 • 硝基、氰基、crC4-烧基、氟甲基、二氟曱基、三氟甲基、 羥基、Q-CV烧氧基、羧基、CVCV烧氧基羰基、CrC4* 基羥基、CONH2, CONR#2、SO2·^、環烷基、概凡 及队3 ; 其中R〗及R2每一個係獨立地選自:氫、Ci_C4_烷基、 Ci-CV炫氧基Μ基及芳基;或是&及& 一起與它們所鍵結 的氮原子形成5-或6-元環,其可選擇性地包含至少一個額 外雜原子;及 R3係選自虱、CrC4_烧基、芳基及SR4,其中係為 CrC4_烷基或芳基; 或是其醫藥可接受鹽類; 此方法包含: ①將化合物A (上文)在觸媒存在下以醋酸酐處理以得 到由下列为子式F所表不的㈠·反式-醋酸3-(3-乙酿基_2-經 基-4,6_二曱氧基_苯基甲基-吼口各院-2_基甲酯;
分子式F (後文稱為化合物F); (ii)以鹼的水溶液處理化合物F及將反應混合物溫度 升高至約50 〇C以得到由下列分子式g所表示的㈠-反式 16 200815413 -Η2-經基-3_(2·羥甲基·ι_甲基吡咯烷;基)_4,6_二甲氧基· 苯基)-乙酮;
Formula G 分子式G (後文稱為化合物G); (iii)於氮氣壓下,在鹼及適當溶劑存在下將化合物G 與分子式ArCOOCH3 (其中Ar係定義於分子式1}的酯類反 應’接者為藉由酸催化ί辰化反應以得到由下列分子式2所 表示的二曱氧基化合物;
Formula 2 分子式2 (後文稱為化合物2); (iv)藉由在範圍120 - 180 C的溫度將化合物2 與去甲基化劑加熱將化合物2進行脫曱基反應以得到由分 子式1所表示化合物的所欲(+)-反式對映異構物。 在最佳具體實施例中,本發明係提供一種由下文分子 式1A所表示的(+)-反式-2-(2-氯-苯基)-5,7-二羥基-8-(2-經曱 17 200815413 基小曱基-吡咯烷-3-基)_苯並吡喃冰酮的對映選 ^於此在_分子式i的化合物中知基表示以‘代的 本基, ΟΗ Ο
(、 Formula 1A 分子式ΙΑ (後文稱為化合物ΙΑ),此方法包含: ①將化合物Α在觸媒存在下以醋酸酐處理以得到由 下列分子式F所表示的(·)·反式3_(3_⑽基_2_經基 _4’6_ 一甲氧基-苯基)_1_甲基』比略院-2-基甲酉旨; OMe^
分子式F (後文稱為化合物F); (ii)以鹼的水溶液處理化合物F及將反應混合物溫度 升高至約50。(:以得到由下列分子式G所表示的㈠_反式 _H2邊基各(2_羥甲基小甲基吡咯烷各基风卜工曱氧基· 苯基)_乙酮; 18 200815413
formula G 分子式G (後文稱為化合物G); Γ o (iii)於氮氣壓下,在鹼及適當溶劑存在丁將化合物G 與2-氯苯甲酸曱酯反應,接著為藉由酸催化環化反應以得 到由下列分子式2A所表示的(+)_反式-2-(2-氣苯基)-8-(2-羥 甲基小甲基』比咯烧-3-基)-5,7_二甲氧基"苯並°比喃冰酮;
分子式2A (後文稱為化合物2A); (iv)藉由在範圍120-180 C的溫度將化合物2A與 鹽酸咖定加熱以將化合物2A進行脫甲基反應以得到化合 物1A ;及 w選擇性地,藉由f知方法轉化分子式iA為其醫藥 ,,類’例如其鹽酸鹽類’(吟反式雄氯苯基>5,7_ :膝8倾甲基+甲基鲁各妨基)_苯並蛛4_嗣鹽 19 200815413 用於步驟⑻的化合物(Ε)-曱基-2-硝基-3-(2,4,6-三曱氧 苯基)丙烯酸酯可在醋酸銨及硫酸鎂的存在下由2,4,6-三甲 氧基苯曱醛及硝基乙酸甲酯之間的反應製備。化合物2,4,6-三甲氧基苯甲醛可藉由習知方法自2,4,6-三曱氧基苯與磷 醯氯及Ν,Ν-二甲替甲醯胺反應而製備。化合物硝基乙酸甲 酯可藉由習知方法例如於160〇C加熱硝基甲烷與鹼如氫氧 化鉀,接著以硫酸及曱醇於15oC處理而由硝基甲炫製備。 Ο Ο 用於上文步驟⑻的觸媒複合物包含掌性雙卜惡哇琳)配 位基及金屬複合物,掌性雙(σ惡嗤琳)配位基於催化性不對稱 合成的使用已被廣泛報告(Ghosh, Α· Κ.; Mathivanan,R;
Cappiello, J· Tetrahedron: Asymmetry 1998, 9, 1 - 45)。根據本 發明,較佳掌性雙(噁唑啉)配位基為(3aS,3a,s,8aR, 8a’R)-2,2,(環丙烧-二基)雙(8,8a二氫-祕節滿^,聊惡 唑),其可根據在美國化學協會期刊2〇〇2, 13097·131〇5所報告的方法製備,其顧人本文做為參考,’ 反應可僅使用4至6莫耳%的掌性雙吩坐琳)配位基進行。 適^於提供卿複合物的金屬複合物包含三氟甲績 酸鎮、高驗鎂、三氣甲績酸銅、三氣曱續 ^ =酸鑭、三氣料_、演傾、演化銅、漠化辞 V、蛾化鎂、峨化銅、蛾化鋅、換化錄、乙醯丙、 =二物乙:_辞、及乙酿丙_。根據本發明,較 住i屬稷合物為三氟甲磺酸鎮。 20 200815413 駢咪唑,較佳為,N_甲基嗎啉用做鹼。 用於步驟(b)的還原劑可為氣化亞錫或是阮來鎳,當使 用氯化亞錫做為還原劑時,化合物c係以單一異構物得 到田使用阮來鎳做為還原劑時,化合物C係以異構物混 合物知到’如由1Η NMR所顯示。若小樣品的異構物混合 物由柱型色層分析法純化以分離這些異構物,可確認這些 異構物的其中一個與使用氣化亞錫做為還原劑所得到的單 一異構物相同。在步驟(的所使用的溶劑較佳為非質子溶 劑,=如醋酸乙醋、二噪烧、N,N-二甲替甲酼胺及四氫吱 喃。當使用氯化亞錫進行還原反應時,所使用的溶劑較佳 為醋酸乙醋,及當使用阮來錄進行還原反應時,所使用的 /合劑較佳為選自:四氫呋喃、二噁烧及Ν,Ν-二甲替甲醯胺。 用於脫羧基反應步驟(c)的溶劑較佳為極性非質子溶劑 例如N_甲基吡咯烷酮及二甲基亞礙。 用於步驟(d)的甲基化試劑可為甲基碘或二甲基硫酸 酯,用於步驟(d)的溶劑較佳為極性非質子溶劑其可選自: N,N-二甲替甲醯胺、四氫吱喃及二姚。驗性金屬碳酸鹽 可為碳酸鈉或碳酸鉀,驗性金屬氫化物可為氫化納,驗性 金屬氫氧化物可為氫氧化鈉或氫氧化鉀,所使用醇類較佳 為一種無環醇,更佳為,該醇類係選自··乙醇、甲醇及異 丙醇。 ^ 用於步驟(e)的還原劑較佳為一種氫化物,更佳為選 自··氫化銘鋰、氫化第三異丁基鋁及硼氬化納的氨化物。 用於還原步驟的溶劑較佳為峨,更佳為該溶劑係選自: 21 200815413 四氫呋喃、二噁烷及乙醚。 在由分子式A的中間化合物製備分子式1化合物的方 法中,用於步驟①的觸媒係選自路易士酸及多聚磷酸。該 路易士酸觸媒可選自氯化鋅、氯化鋁、三氟化硼及三演Z 爛,最佳路易士酸觸媒為三氟化硕。 用於步驟⑻的鹼可為氫氧化鈉或氫氧化鉀。 用於步驟(iii)的鹼可選自:氫化鈉、正叮基鋰、六甲基 二矽氨烷鋰及二異丙氨基鋰,所使用鹼較佳為氫化鈉。用 於步驟(iii)的溶劑可選自··四氫呋喃、N,N_:甲替甲醯胺及 二噁烧’所使用溶劑較佳為N,N-二甲替甲醯胺。 用於步驟㈣的脫甲基劑可選自鹽酸吡咬、三演化硕、 二氟化硼乙醚及三氯化鋁,較佳脫甲基劑為鹽酸吡啶。 於疋,根據本發明方法,分子式A化合物係以大於97 % ee(對映異構物過量)的對掌純度得到產生具大於99 %沈 的對掌純度的分子式1化合物。 由本發明新穎方法所得到的分子式1化合物可選擇性 地轉化為它們的相對應醫藥或是毒性可接受鹽類,特別是 它們的醫藥可利用鹽類。 包含一或更多鹼性團,亦即可被質子化的基,的分子 式1化合物可根據本發明以其與無毒性的無機或有機酸的 加成鹽之形式使用。合適無機酸的實例包含··硼酸、高氯 酸、鹽酸、氫溴酸、硫酸、氨基磺酸、磷酸、硝酸及熟知 該技藝者所已知的其他無機酸。合適有機酸的實例包含: 醋酸、葡萄糖酸、丙酸、丁二酸、乙醇酸、硬脂酸、丙醇 22 200815413 酸、羥基丁二酸、酒石酸、擰檬酸、抗壞血酸、哌酸、順 式丁烯二酸、羥基順式丁烯二酸、苯醋酸、谷氨酸、笨曱 酸、水揚酸、對氨基苯績酸、2_醋酸基苯酸、反式丁烯二酸、 曱本石黃酸、甲磺酸、乙績酸、草酸、經乙基石黃酸、氧代戊 二酸、笨磺酸、甘油磷酸及為熟知該技藝者所已知的其他 有機酸。包含酸性團的分子式1化合物可根據本發明使用, 例如,做為鹼金屬鹽類如Li、Na、及K鹽類。本發明的醫 藥可接受鹽類可由包含鹼性及酸性團的該主題化合物藉由 習知化學方法合成,一般言之,這些鹽類可藉由將自由鹼 或酸與化學計量或是與過量的所欲鹽形成無機或有機酸或 驗於合適溶劑或分散劑接觸而製備或是藉由與其他鹽類陰 離子交換或陽離子交換而製備,合適溶劑為,例如,醋酸 乙酯、乙醇、丙酮、四氫呋喃、二噁烷或這些溶劑的混合 物。 要了解在不影響各種本發明具體實施例的對掌性的反 應條件的修改係包含於此處所揭示本發明内。據此,下列 實例意欲用於說明而不在限制本發明。 實例 實例1 : (E)-甲基_2_硝基各(2,4,6-三甲氧苯基)丙烯酸酯 將2,4,6_三甲氧苯甲醛(20.75公克,0.105莫耳)溶解於 二氯甲烷(300毫升)及將硫酸錤(15公克,〇·124莫耳)、醋酸 銨(10公克,0.129莫耳)及硝基乙酸甲醋(12.60公克,0.105 莫耳)加至此溶液及於室溫攪拌2小時。在二小時結束時, 23 200815413 ‘ 加入水(300毫升)於該反應質體,分離有機層及以二氣甲烷 (2 X 100耄升)萃取水相層,於減壓下合併有機層及濃縮之 以得到固體,其係由甲醇(1〇〇毫升)結晶。 產率:22公克(66.82%) lR NMR (CDC13): 8·37 (s,1H),6·〇8 (s,2H),3·86 (s, 3Η),3·84 (s,3Η),3·82 (s,6Η)。 MS (ES+): 298 (M+l) Γ 實例2 : (+)-三甲基·3_硝基-2-(2,4,6·三甲氧苯基)丙烧心丄^三 羧酸酯 於維持在氮氣壓的雙頸500毫升圓底燒瓶中,加入氯 仿(10毫升)、三氟甲磺酸鎮(0.161公克,〇·5毫莫耳)及水 (0.036 毫升,2.0 毫莫耳),將(3aS,3a,S,8aR,8a,R)_2,2,(環 丙烷_1,1-二基)雙(8,8a·二氩-3aH-茚滿[l,2d]噁唑)(雙(噁唑 啉))(〇,196公克,0.55毫莫耳)加至此經攪拌溶液及將反應混 L 合物攪拌1小時。在1小時結束時,加入氯仿(30毫升)及 分子篩(2公克)及將該混合物另外攪拌90分鐘,加入(E)-甲 基-2-硝基_3-(2,4,6-三甲氧苯基)丙烯酸酯(3·ι公克,〇.〇1莫 耳)、丙二酸二甲酯(1·92公克,0.014莫耳)及Ν-甲基嗎啉 (0.06公克,〇·6毫莫耳)及將反應混合物攪拌12小時接著於 40 oC加熱4小時。將石油醚(15毫升)加至該反應混合物, 攪拌10分鐘及過濾該混合物,將分子篩以曱基第三丁基醚 洗及該合併有機層以5%碟酸(10毫升)及鹽水(15毫升)洗, 於減壓下濃縮該有機層以得到油,將該油溶解於甲醇(1〇毫 24 200815413 升),冷卻及過濾之以得到白色結晶固體。 產率:2.9公克(67.82%) lU NMR (CDC13): (6.05 (br.s,1H),6·03 (br.s,1H), 6·0 (d,1H,12·0 Hz),5·24 (dd,1H,9·0 Hz,12·0 Hz),4·26 (d, 1H,9·0 Hz),3.83 (s,6H),3.77 (s,3H),3·76 (s,3H),3.72 (s5 3H),3.4 (s,3H). MS (ES+): 430 (M+l) 實例3 : (-)-二甲基-5_氧代_3-(2,4,6-三甲氧苯基)吡咯烷-2,4-二 羧酸酯 方法1 將(+)-三曱基·3-硝基_2_(2,4,6_三曱氧苯基)丙烧_1,1,3-三羧酸酯(7.8公克,0.018莫耳)溶解於醋酸乙酯(1〇〇毫升), 於此溶液,將氯化亞錫二水合物(25公克,0.118莫耳)以數 個部份於10分鐘並攪拌下加入。將反應混合物加熱至55〇c 維持2小時,將該混合物冷卻至1〇 〇C,以10%氫氧化納溶 液鹼化至pH 9,經由矽澡土過濾及使用醋酸乙酯(5〇毫升) 洗矽澡土。以醋酸乙酯P X 100毫升)萃取水相層,合併有 機層,於無水硫酸鈉上乾燥及於減壓下濃縮以得到該標題 化合物,其為白色固體。 產率·· 4.5 公克(67.44%) NMR (CDCI3): 6·06 (br.s,2H),6.00(br.s,1H), 4·98 (dd,1H),4.59 (d,1H),3·96 (d,1H),3·79 (s,3H),3.76 (s, 9H),3.35 (s,3H). 25 200815413 MS (ES+): 368 (M+l) 方法2 將四氩呋喃(100毫升)及阮來鎳(20公克)加至丨公升壓 力反應器,接者加入(+)-二甲基_3_琐基_2_(2,4 6-三甲4策其 丙烷-1,1,3-三羧酸酯(32公克,〇·074莫耳)於四氫呋喃(3二 毫升)的溶液。在攪拌下,反應器以氮氣接著氫氣吹驅三次, 將反應混合物於80碎/平方英吋的氫氣壓下攪拌過夜,在反 (! 應結束,濾、出阮來錄及在氮氣壓下以四氮咬π南(15〇毫升) 洗,於減壓下濃縮有機層以得到白色固體。1H NMR顯示異 構物混合物的存在,順式及反式異構物的混合物係以25公 克(91.32 %)的產率得到。一小部份的反應混合物係藉由使 用5 %曱醇於氯仿做為洗提劑的柱型色層分析法純化以分 離該異構物及發現該經分離異構物的其中一個與由使用氯 化亞錫的還原反應所得到的異構物相同,此係由iHNMR、 質譜儀及HPLC確認。 ❹1H NMR (CDC13): 6·06 (br.s,2H),6.00(br.s,lH),4·98 (dd,1H),4·59 (d,1H),3·96 (d,1H),3·79 (s,3H),3.76 (s,9H), 3·35 (s,3H). MS (ES+): 368 (M+l) 實例4 : ㈠-曱基-5-氧代-3-(2,4,6-三曱氧苯基)吡咯烷_2_羧酸酯 將(+)-二甲基-5-氧代-3-(2,4,6-三曱氧苯基)u比洛烧·2,4-二羧酸酯(4.0公克,0·0109莫耳)溶解於曱基吡咯烷1同(15 毫升),加入氯化鈉(0.631公克,〇·〇ι〇9莫耳)及水(0.196毫 26 200815413 升’ 0.0109莫耳)及加熱反應混合物至i7〇〇C維持5小時, 將反應混合物倒至冰(50公克)及過濾固體及乾燥。 產率:1.5公克(44.5%) 產物係為順式及反式異構物的混合物如在nmR所 見,該異構物的混合物係使用而不需進一步反應的分離, 一小部份的混合物係藉由柱型色層分析法(5 %甲醇於氣仿) 純化以進行該順式及反式異構物的光譜特徵。 (+)_順式_甲基_5_氧代·3-(2,4,6-三甲氧苯基)吡咯烷_2_ 羧酸酯 lR NMR (CDC13): 6·〇8 (s,2H),5·89 (br.s,1H),4·62 (m,1H),4.48 (d,1H,9·6Ηζ),3·79 (s5 3H),3·76 (s,6H),3·34 (s, 3H),2·74 (dd,1H), 2·60 (dd,1H)。 MS (ES+): 310 (M+l) (+)-反式-甲基氧代各(2,4,6_三曱氧苯基)吡咯烷-2_ 羧酸酯 lU NMR (CDCI3): 6.15 (s, 2H)? 5.87 (br.s? 1H)9 4.42 (d,1H,MHz), 4·26 (m,1H),3·82 (s,3H),3.81 (s,6H),3.68 (s, 3H),2·76 (dd,1H),2.53 (dd,1H)。 MS (ES+): 310 (M+l) 實例5 : ㈩·曱基-1-甲基_5_氧代各(2,4,6_三甲氧苯基)。比咯烷_2_ 羧酸酯 將(+)-甲基-5-氧代-3_(2,4,6-三甲氧笨基)吡咯烷_2+二 羧酸醋(1.7公克’0.0055莫耳)溶解於n,n_二甲替曱醯胺(15 27 200815413 ,升)及將溶液冷卻至〇〇c。將氫化鈉(0·134公克,_6 笔莫耳)以數個部份於10分鐘期間力口入並於OoC另外觀丰 2〇分鐘。逐滴加入甲基碘(〇 514毫升,〇 〇〇82莫耳)及使反 應於1小時加溫至室溫。將反應混合物緩慢倒至碎冰(20公 克)及1:1鹽酸溶液(5毫升)的混合物上,將混合物以醋酸乙 酯(2x50毫升)萃取,以鹽水洗,於無水硫酸鈉上乾燥及於 減壓下濃縮以得到油狀物,該油狀物以石油鱗輾製及過濾 所得固體。 產率·· 1·7 公克(96.04%) 產物係為順式及反式異構物的混合物如在ιΗ胃^^斤 見’該異構物的混合物係使用而不需進一步反應的分離, 一小部份的混合物係藉由柱型色層分析法(5 %曱醇於氯仿) 純化以進行該順式及反式異構物的光譜特徵。 (+)-順式-曱基小甲基-5-氧代-3-(2,4,6-三甲氧苯基)¾匕 略貌X2-羧酸醋 ln NMR (CDC13): 6·07 (s,2H),4·44 (dd,lH),4·27 (d,1H,9·6Ηζ),3.79 (s,3H), 3.74 (s,6H),3·38 (s,3H),3·20
Wd,1H),2.90 (s,3H),2·45 (dd,1H) MS (ES+): 324 (M+l) (+)-反式-曱基小甲基-5-氧代-3-(2,4,6-三甲氧苯基),比 咯烷-2_羧酸酯 !H NMR (CDC13): 6·12 (s,2H),4·13 (d,1H,6·3Ηζ), 4·〇5 (dd, 1HX 3.80 (s5 3H)5 3J6 (s, 6¾ 3.70 (s? 3¾ 2.88 (s? 3H),2.64 (m,2H).。 28 200815413 MS (ES+): 324 (Μ+l)。 實例6 : ㈠-反式小曱基_5_氧代_3_(2,4,6_三曱氧苯基户比咯龄 羧酸醋 將甲基小曱基-5-氧俗3·(2,4,6_三曱氧苯基,咯烧_2_ 羧酸酯(1.6公克’ 0·_9料)賴纽反式異獅的混合 物浴解於曱醇(15 *升)。於此溶液,加入氫氧化鉀(〇 %公 克,0·0Π莫耳)於水(4毫升)的溶液及於aw加熱反應混 合物3小時。你咸壓下移除曱醇,加入15毫升水及使用1:1 鹽酸溶液酸化混合物至pH 2,過濾所得固體,以水洗及乾 燥。 產率·· 0·94 公克(61·440/〇) 4 NMR (CDC13): 6.13 (s,2Η),4.16 (叫 2Η),3·80 (S, 3Η),3.77 (S,6Η),2·93 (S,3Η),2·74 (m,1Η),2·62 (m,1Η)。 MS (ES+); 310 (M+l) [a]D25:-37.83 (c = 0.518,甲醇) 實例7 : ㈠·反式-(1-曱基-3-(2,4,6-三甲氧苯基)吼洛烧·2_基)甲 醇 將氫化銘链(0·304公克,0.008莫耳)於氮氣壓下於四氫 咬喃(40宅升)授摔’將㈠-反式-1-曱基-5-氧代_3_(2,4,6_三曱 氧苯基)吡咯烷_2_羧酸(1.0公克,0.0032莫耳)以數個部份加 入及於50〇C加熱反應混合物並授拌90分鐘,將反應混合 物冷卻至10〇C及於攪拌下以水(2·5毫升)及15 %氫氧化鈉 29 200815413 溶液(0·6毫升)稀釋,過濾固體及以醋酸乙酯(1〇毫升)先 於減壓下合併有機層及濃縮之以得到白色固體。 ’ ’ 產率:0.91公克(100%) ^NMRCCDCW: 6.16 (s92H)? 3.98 (m5 1¾ 3.64 (s 9H),3·62 (dd,1H),3·43 (d,1H),3·21 (m,1H),2·78 (m,1H): 2·63 (m,1H),2·44 (s,3H),2·04 (m,2H) ’ ’ MS (ES+): 282 (M+l) [a]D25: -20 (c = 0.2,甲醇) 實例8 : ㈠-反式-醋酸3-(3-乙醯基-2-羥基-4,6-二曱氧基-苯 基甲基比洛烧-2-基甲酉旨 於氮氣壓下於0〇C逐滴加入三氟化侧乙醚(25.2公克, 0.178莫耳)至㈠_反式_(1_甲基-3·(2,4,6-三曱氧苯基)口比咯烧 -2_基)甲醇(10公克,0.0356莫耳)於醋酸酐(18公克,0.178 莫耳)的溶液並攪拌,於室溫攪拌反應混合物2小時,將其 倒於碎冰(1公斤)上,使用飽和碳酸鈉水溶液鹼化及使用醋 酸乙酯萃取(3 X 200毫升),以鹽水洗有機萃取物,乾燥(無 水硫酸鈉)及濃縮以得到標題化合物。 產率:10公克(8〇%) !H NMR (CDC13,): δ 14·20 (s,1H),5.96 (s,1Η),4.10 (d,2Η),3·90 (s,3Η),3·89 (s,3Η),3·85 (m,1Η),3·26 (m,1Η), 2·82 (m,1H),2·74 (m5 1H),2·66 (s,3H),2·52 (s,3H),2·21 (m5 2H),2·10 (s,3H)。 實例9 : 30 200815413 • ㈠-反式小[2_經基_3_(2_經甲基-i_甲基比口各炫-3- 基)-4,6-二甲氧基-苯基]-乙酮 於室溫下,將10%氫氧化鈉溶液(25毫升)授拌加入(-)-反式_醋酸3-(3-乙醯基-2-羥基-4,6-二甲氧基-苯基)-1_甲基-°比略烧-2-基曱酯(10公克,0.0284莫耳)於曱醇(25毫升)的 溶液,反應混合物的溫度升高至50 °C維持45分鐘,冷卻 至室溫,使用1:1鹽酸溶液酸化及濃縮以移除曱醇,使用標 準碳酸納水溶液驗化,過濾經沉澱化合物,以水洗及乾燥。 產率:7.14公克(81.1%) IR(KBr): 3400, 3121,3001,1629,1590 公分-1. 4 NMR (CDC13): δ 5·96 (s,1H),3.93 (m,1H),3.90 (s 3H),3·88 (s,3H),3·59 (dd,1H),3.37 (d,1H),3·13 (m,1H), 2.75 (m,1H),2.61 (s,3H),2.59 (m,1H),2.37 (s,3H),2.00 (m, 2H). MS(ES+):m/z310(M+l)。 實例10: (吟反式_2-(2-氯苯基)-8-(2-羥甲基小曱基-°比咯烷-3-基)_5,7-二甲氧基-苯並《比喃-4-酮 在氮氣壓下,於〇 〇C將氫化鈉(50 %,〇·54公克,0·01125 莫耳)以數個部份加至㈠_反式-醋酸3-(3-乙醯基-2-經基-4,6-二甲氧基_苯基)-1_甲基-吼咯烷-2-基甲酯(〇·7公克,0.0022 莫耳)於Ν,Ν-二曱替曱醢胺(15毫升)的溶液並攪拌,10分鐘 後,加入2_氯苯酸曱酯(U5公克,〇·00675莫耳),將反應 混合物於25 oC攪拌2小時,在低於20 〇C小心加入曱醇。 31 200815413 • 將反應混合物倒於碎冰(300公克)上,使用1:1鹽酸溶液酸 化混合物至pH 2及使用醋酸乙酯(2 X 100毫升)萃取,水層 使用飽和碳酸鈉水溶液驗化至pH 10及使用氯仿(3 X 200毫 升)萃取,有機層於無水硫酸鈉上乾燥及濃縮,將濃鹽酸(25 宅升)加置餘基及於室溫撲;摔2小時。將反應混合物倒於碎 冰(300公克)上及使用飽和碳酸鈉水溶液使之成鹼性,混合 物使用氯仿(3 X 200毫升)萃取,有機提出物以水洗,於無 〇 水硫酸鈉上乾燥及濃縮以得到該標題化合物。 產率:0.67 公克(68.88%) 熔點:95 - 97 oC IR(KBr): 3400,1660 公分-1。 [a]D25 = + 5.8 (c=0.7,甲醇) NMR (CDC13): 5 7.7 (dd? 1H)? 7.41 (m? 1H)5 7.45 (m,2H),6.55 (s,1H),6.45 (s,1H),4,17 (m,1H),4.05 (s,3H), 3·95 (s,3H),3·65 (dd,1H),3·37 (dd,1H),3·15 (m,1H),2·77 〇 (d,1H),2·5 (m,1H),2·3 (s,3H),2·05 (m,2H)。 MS: m/e 430 (M+),398 (M-31) 實例11: (+)•反式-2-(2-氯苯基)_8-(2_每曱基-1-曱基比略烧 基)-5,7-二經基-苯並。比喃-4-闕 將熔融鹽酸吡啶(4·1公克,0.0354莫耳)加至反式 冬(2-氯苯基>8_(2_羥曱基_1_曱基·吡咯烷冰基)_5,7-二甲氧 基-苯並吡喃-4__(0·4公克,0.0009莫耳)及於i8〇 〇c加熱 1.5小時。將反應混合物冷卻至25 oC,以甲醇(1〇毫升)稀 32 200815413 釋及使用碳酸鈉鹼化至pH 10,將混合物過濾及濃縮有機 層,將餘基懸浮於水(5毫升),攪拌30分鐘,過濾及乾燥 以得到該標題化合物。 產率:0.25 公克(66·86%) IR(KBr): 3422, 3135, 1664, 1623, 1559 公分_卜 NMR (CDC13): 5 7.56 (d5 1H)5 7.36 (m, 3H)5 6.36 (s5 1H),6·20 (s,1H),4.02(m,1H),3·70 (m,2H),3·15 (m,2H), 2.88 (m,1H),2.58 (s,3H),2·35 (m,1H),1.88 (m,1H)。 MS (ES+): m/z 402 (M+l) 分析·· C21H20CINO5 C,62.24 (62.71); H,5·07 (4.97); n 3.60 (3.48); Cl 9.01 (8.83) 〇 ’ 實例12: (+)-反式_2-(2_氯_苯基)-5,7-二經基各(2-經甲基+甲基_ °比u各烧-3 -基)-苯並吼喃_4_酮鹽酸 將(+)-反式-2-(2_氣苯基)各(2老甲基小曱基』比洛燒 基)-5,7_二羥基-苯並吡喃斗酮(〇·2公克,〇·48毫莫耳)懸浮 於曱醇(2毫升)及加人乙srHC1(5毫升),攪拌懸浮液以= >月>政溶液’將溶液於減壓下濃縮以得到該標題化人物 產率:0.21公克(97%) [a]D25 = +21.2。(c = 0.2,甲醇) NMR (CD3OD? 300MHz): ^ 7.8Ο (d? 1H)? 7.6〇 . 3H),6.53 (s,1H),6·37 (s,1H),4.23 (m,1H),3·89 (m,2H) 3.63 (m,1H),3.59 (dd,1H),3·38 (m,1H),2·90 (s,3H),2 45 (m,1H),2.35 (m,1H)。 ’ ’ · 33 200815413 MS (ES+): m/z 402 (Μ +1),自由鹼。
34 200815413 【圖式簡單說明】 無 【主要元件符號說明】 Ο 無 〇 35
Claims (1)
- 200815413 申請專利範圍: 種製備分子^ 1所表示的具黃g脉代之*各烧之(+)_ 反式對映異構物或是其醫藥可接受鹽類的方法: 0H 0分子式1 其中Ar係為苯基,其為未經取代的或是由卜2、或3 個相同或不同取代基所取代的,這些取代基係選自: _素、琐基、氰基、CrQ烧基、氟甲基、二氟甲基、 三氟甲基、羥基、crc:4烷氧基、羧基、CrC4烷氧基 幾基、CVC4 烯基羥基、CONH2, CONR^,SC^NR^、 烧基、NR4R2 及 SR3 ; 其中R!及R2各獨立地選自:氫、Crc4烷基、Cl_c4 烧基叛基及芳基;或是Ri及以2 —起與它們所鍵結的 氮原子,形成5-或6-元環,其可選擇性地包含至少一 個額外雜原子;及 &係選自氳、C「C4炫基、芳基及SR4,其中仏係為 C1-C4院基或芳基; 其包含步驟: ⑻以選自一多聚磷酸及路易士酸其中之一之一觸媒 存在下以醋酸酐處理由下列分子式A所表示的化合 36 200815413分子式A Ο (後文稱為化合物A),其中該路易士酸係選自:氣化 鋅、氣化鋁、三氟化硼及三溴化硼其中之一,以得到 由下列分子式F所表示的(-)-及式-醋酸3-(3·乙醯基-2-羥基-4,6-二甲氧基-苯基)-1-曱基-吼咯烷-2-基曱酯:分子式F (後文稱為化合物F); (b)以選自:氫氧化鈉或氫氧化鉀其中之一的鹼的一水 溶液處理該化合物F,及將反應混合物溫度升高至約 50 °C以得到由下列分子式G所表示的(-)-及4小[2-經基-3-(2-經甲基-1-曱基比嘻燒-3-基)-4,6-二甲氧基_ 苯基)-乙酮:37 200815413 分子式G (後文稱為化合物G); (c)於氮氣壓下,在選自:氫化鈉、正-丁基鋰、六曱基 二石夕氨烧鐘及二異丙氨基鐘其中之一的一驗及選自: 四氫呋喃、N,N-二甲替曱醢胺及二噁烷其中之一的溶 劑存在下將該化合物G與分子式ArCOOCH3(其中Ar 係定義於分子式1)的一酯類反應,其接著為一酸催化 環化反應以得到由下列分子式2所表示的二甲氧基化 合物;分子式2 (後文稱為化合物2); ⑻藉由在120 C至180 C的溫度範圍將該化合物2 與選自:鹽酸吼唆、三溴化删、三氟化硼乙鍵及三氯 化紹其中之-的-去甲基化劑加熱而將該化合物 行脫甲基反應,及 # ⑹選擇性地’轉化所得的該分子式i化合物為 可接受鹽類。 ^ 2. 如!請專利麵第1項的方法,射心係為具氣取代 的本基。 3. -種製備如帽專利範圍第i項所述方法的步驟⑷所 38 200815413 述之由分子式A所表示的(-)-及4,-(l-甲基-3-(2,4,6-三 甲氧苯基)-0比洛烧-2-基)甲醇化合物的方法; ΟΜθ Λ Μθ〇"ηί^〇Μθ 〇Η Λ 分子式A ,其包含,以一還原劑在一溶劑中處理具下列分子式 E的(-)_及4、_1-甲基-5-氧代-3-(2,4,6_三甲氧基苯基)_ 吡咯烷-2-碳酸化合物; ΟΜθ jfS ΜθΟ^Υ^ΟΜθ A^cooh (λΝ Η 分子式Ε (後文稱為化合物Ε)。 4·如申請專利範圍第3項的方法,其中該化合物Ε係由 下列步驟製備: (a)在一觸媒複合物、一鹼及一分子篩存在下於一溶劑 中進行丙二酸二曱酯至(E)-曱基_2_硝基各(2,4,6-三甲 氧苯基)丙烯酸酯的立體特定性麥可加成反應,其中該 觸媒複合物係包含一掌性雙(噁唑啉)配位基及一金屬 複合物’以得到由下列分子式B所表示的(+)-三甲基 各硝基-2-(2,4,6_三甲氧苯基)丙烧巧山^三羧酸酯: 39 200815413 N°2CO〇Me 分子式B (後文稱為化合物B); η Me( MeOOC HOMe COOMe (b)以-還原劑在—溶劑中處理在步驟⑻所得到的該 化,物B以得到由下列分子式c所表示的(+)_二甲基 5_氧代_3_(2,4,6_三甲氧基苯基)-吼咯烧-2,4-二碳酸醋; MeC MeOOCOMe COOMe 分子式C (後文稱為化合物C); (c)以氯化鈉於一溶劑中處理該化合物c及加熱所得反 應混合物至120°C至170 °C的溫度範圍以得到由下列 分子式D所表示的(+)-甲基-5_氧代;(2,4,6-三曱氧基 苯基)-吼咯烷-2-碳酸醋,其係為廣式及及4、異構物的 一混合物: 200815413 OMe Λ MeO^pOMe 〇^ν"η υ Η 分子式D (後文稱為化合物D); η (Φ將該化合物D與於一溶劑中的一甲基化試劑及選 自·驗金屬氫化物及驗金屬碳酸鹽其中之一的驗反 應,接著將所得廣>t、及及4、化合物的混合物與鹼金屬 氫氧化物於一醇中進行加驗水解,並加熱該所得反應 混合物至在50°C至100 QC的溫度範圍以得到化合物 E為單一及4異構物。 5·如申請專利範圍第4項的方法,其中用於步驟(a)的該 掌性雙(噁唑啉)配位基係為(3aS,3a,S,8aR, 8a R>2,2’(環丙烷- l,l_二基)雙(8,8a-二氫_3犯_茚滿 [l,2d] 口惡嗤)。 6.如申請專利範圍第4項的方法,其中用於步驟⑷的該 金屬複合物係選自:三氟甲磺酸鎂、高氯酸鎂、三氟 甲石黃酸銅、三氟甲石黃酸鋅、三氟曱續酸綱、三氣甲磺 酸錄、漠化鎮、演化銅、魏鋅、演化錦、埃化鎮、 碘化銅、碘化鋅、碘化鎳、乙醯丙_鎂、乙醯丙酮銅、 乙醯丙酮鋅、及乙醯丙酮鎳。 7· ^請專利範圍第6項的方法,其中該金屬複合物係 為三氟甲磺酸鎂。 41 200815413 8· 9· 如申請專利範圍第4 $ 於申請專利範圍第項中任—項的方法,其中用 二異丙胺、2,6-二曱^步驟⑻的該驗係選自:三乙胺、 卷h定、N—曱基嗎琳、N 咪唑及5,6-二甲基笨駢咪唑。 乙基哌啶、 如申請專利範圍第8項&+丄^ 嗎琳。 ㈣方法’其巾雜係為从甲基10·如申請專利範圍第4 申請專利範圍第4 錫0 至9項中任一項的方法,其中在 項步驟(b)的該還原劑係為氯化亞 U·如申請專利範圍第10項的方法, 乙醋。 其中該溶劑係為醋酸 c 12·如申請專細&圍第4 ϋ 9項中任一項的方法,其中在 申請專利範圍第4項步驟(b)的該還原劑係為阮來鎳。 13·如申請專利範圍第12項的方法,其中該溶劑係選自四 氫呋喃、二嗔:院及N,N-二甲替甲醯胺。 42
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