WO1998021179A1 - Procede de preparation de prostaglandines - Google Patents
Procede de preparation de prostaglandines Download PDFInfo
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- WO1998021179A1 WO1998021179A1 PCT/JP1997/004158 JP9704158W WO9821179A1 WO 1998021179 A1 WO1998021179 A1 WO 1998021179A1 JP 9704158 W JP9704158 W JP 9704158W WO 9821179 A1 WO9821179 A1 WO 9821179A1
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- Prior art keywords
- formula
- same
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- following formula
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- 150000003180 prostaglandins Chemical class 0.000 title claims abstract description 46
- 229940094443 oxytocics prostaglandins Drugs 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 33
- 238000002360 preparation method Methods 0.000 title description 2
- -1 (E)-hydroxyvinyltin compound Chemical class 0.000 claims abstract description 64
- QBBRWBVKFOXJCQ-UHFFFAOYSA-N [Cu]C=C Chemical compound [Cu]C=C QBBRWBVKFOXJCQ-UHFFFAOYSA-N 0.000 claims abstract description 33
- BZKFMUIJRXWWQK-UHFFFAOYSA-N Cyclopentenone Chemical class O=C1CCC=C1 BZKFMUIJRXWWQK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims description 37
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 34
- 239000003153 chemical reaction reagent Substances 0.000 claims description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000002841 Lewis acid Substances 0.000 claims description 19
- 150000007517 lewis acids Chemical class 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 18
- SYTBZMRGLBWNTM-SNVBAGLBSA-N (R)-flurbiprofen Chemical compound FC1=CC([C@H](C(O)=O)C)=CC=C1C1=CC=CC=C1 SYTBZMRGLBWNTM-SNVBAGLBSA-N 0.000 claims description 16
- 125000000217 alkyl group Chemical group 0.000 claims description 16
- 229910052744 lithium Inorganic materials 0.000 claims description 16
- 125000004432 carbon atom Chemical group C* 0.000 claims description 11
- 125000006239 protecting group Chemical group 0.000 claims description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 238000007259 addition reaction Methods 0.000 claims description 8
- 229910000083 tin tetrahydride Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- VMQMZMRVKUZKQL-UHFFFAOYSA-N Cu+ Chemical class [Cu+] VMQMZMRVKUZKQL-UHFFFAOYSA-N 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 239000005977 Ethylene Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 238000010511 deprotection reaction Methods 0.000 claims description 5
- 239000013543 active substance Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 3
- 229910003002 lithium salt Inorganic materials 0.000 claims description 3
- 159000000002 lithium salts Chemical class 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- PMOWTIHVNWZYFI-WAYWQWQTSA-N cis-2-coumaric acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1O PMOWTIHVNWZYFI-WAYWQWQTSA-N 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 125000002433 cyclopentenyl group Chemical class C1(=CCCC1)* 0.000 claims 1
- 230000001568 sexual effect Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 41
- 239000000543 intermediate Substances 0.000 abstract description 19
- 229920000615 alginic acid Polymers 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 66
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 56
- 239000000243 solution Substances 0.000 description 40
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 36
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 28
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 26
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 21
- 239000002904 solvent Substances 0.000 description 19
- 238000010898 silica gel chromatography Methods 0.000 description 18
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 16
- 238000003756 stirring Methods 0.000 description 15
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 13
- 239000012074 organic phase Substances 0.000 description 13
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 12
- 239000012230 colorless oil Substances 0.000 description 12
- 239000012299 nitrogen atmosphere Substances 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 11
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 10
- 235000011114 ammonium hydroxide Nutrition 0.000 description 10
- IHLVCKWPAMTVTG-UHFFFAOYSA-N lithium;carbanide Chemical compound [Li+].[CH3-] IHLVCKWPAMTVTG-UHFFFAOYSA-N 0.000 description 10
- DOBRDRYODQBAMW-UHFFFAOYSA-N copper(i) cyanide Chemical compound [Cu+].N#[C-] DOBRDRYODQBAMW-UHFFFAOYSA-N 0.000 description 9
- 239000011541 reaction mixture Substances 0.000 description 9
- 229920006395 saturated elastomer Polymers 0.000 description 9
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 description 8
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 7
- 239000010409 thin film Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 235000019270 ammonium chloride Nutrition 0.000 description 6
- GHXZPUGJZVBLGC-UHFFFAOYSA-N iodoethene Chemical compound IC=C GHXZPUGJZVBLGC-UHFFFAOYSA-N 0.000 description 6
- 230000003595 spectral effect Effects 0.000 description 6
- 150000003606 tin compounds Chemical class 0.000 description 6
- DBGVGMSCBYYSLD-UHFFFAOYSA-N tributylstannane Chemical compound CCCC[SnH](CCCC)CCCC DBGVGMSCBYYSLD-UHFFFAOYSA-N 0.000 description 6
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 4
- UCZLBERYFYDXOM-UHFFFAOYSA-N ethenyltin Chemical compound [Sn]C=C UCZLBERYFYDXOM-UHFFFAOYSA-N 0.000 description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- QXTXOTNAKKYALR-XWCOYVICSA-N (e,3s)-1-tributylstannyloct-1-en-3-ol Chemical compound CCCCC[C@H](O)\C=C\[Sn](CCCC)(CCCC)CCCC QXTXOTNAKKYALR-XWCOYVICSA-N 0.000 description 3
- MEHZQZSWAWWYIC-UHFFFAOYSA-N 4-methyl-1-tributylstannyloct-1-en-4-ol Chemical compound CCCCC(C)(O)C\C=C\[Sn](CCCC)(CCCC)CCCC MEHZQZSWAWWYIC-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XNCNNDVCAUWAIT-UHFFFAOYSA-N Methyl heptanoate Chemical compound CCCCCCC(=O)OC XNCNNDVCAUWAIT-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 229910015900 BF3 Inorganic materials 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- IQQDLHGWGKEQDS-VOTSOKGWSA-N Methyl 2-heptenoate Chemical compound CCCC\C=C\C(=O)OC IQQDLHGWGKEQDS-VOTSOKGWSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- MEOSQUUSKJJJDX-UHFFFAOYSA-N [(e)-2-hydroxyethenyl]tin Chemical compound O\C=C\[Sn] MEOSQUUSKJJJDX-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001345 alkine derivatives Chemical class 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- FAOSYNUKPVJLNZ-UHFFFAOYSA-N butylstannane Chemical compound CCCC[SnH3] FAOSYNUKPVJLNZ-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- IDASTKMEQGPVRR-UHFFFAOYSA-N cyclopenta-1,3-diene;zirconium(2+) Chemical compound [Zr+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 IDASTKMEQGPVRR-UHFFFAOYSA-N 0.000 description 2
- OAYLNYINCPYISS-UHFFFAOYSA-N ethyl acetate;hexane Chemical compound CCCCCC.CCOC(C)=O OAYLNYINCPYISS-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 229950001782 oxoprostol Drugs 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- QIWRFOJWQSSRJZ-UHFFFAOYSA-N tributyl(ethenyl)stannane Chemical group CCCC[Sn](CCCC)(CCCC)C=C QIWRFOJWQSSRJZ-UHFFFAOYSA-N 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FAHUKNBUIVOJJR-UHFFFAOYSA-N 1-(4-fluorophenyl)-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazine Chemical compound C1=CC(F)=CC=C1C1C2=CC=CN2CCN1 FAHUKNBUIVOJJR-UHFFFAOYSA-N 0.000 description 1
- 101150025032 13 gene Proteins 0.000 description 1
- VWNNGOBVFMFPNE-UHFFFAOYSA-N 4-methyloct-1-yn-4-ol Chemical compound CCCCC(C)(O)CC#C VWNNGOBVFMFPNE-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- HOHXBRMZBXKVJW-GARIHTGFSA-N CCCCC(C)(CC=C[C@H]1CCC(=O)[C@@H]1CCCCCCC(=O)O)O Chemical compound CCCCC(C)(CC=C[C@H]1CCC(=O)[C@@H]1CCCCCCC(=O)O)O HOHXBRMZBXKVJW-GARIHTGFSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229920000832 Cutin Polymers 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- CJYKYONSMCYFFG-UHFFFAOYSA-N [SnH3][Cu]C=C Chemical compound [SnH3][Cu]C=C CJYKYONSMCYFFG-UHFFFAOYSA-N 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 150000004699 copper complex Chemical class 0.000 description 1
- XEYBRNLFEZDVAW-ARSRFYASSA-N dinoprostone Chemical compound CCCCC[C@H](O)\C=C\[C@H]1[C@H](O)CC(=O)[C@@H]1C\C=C/CCCC(O)=O XEYBRNLFEZDVAW-ARSRFYASSA-N 0.000 description 1
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000009509 drug development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- JZZHXQLQDJOKSB-UHFFFAOYSA-K ethenyl(triiodo)stannane Chemical compound C(=C)[Sn](I)(I)I JZZHXQLQDJOKSB-UHFFFAOYSA-K 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- ARNWQMJQALNBBV-UHFFFAOYSA-N lithium carbide Chemical compound [Li+].[Li+].[C-]#[C-] ARNWQMJQALNBBV-UHFFFAOYSA-N 0.000 description 1
- QHSTXVAUZZDMOS-UHFFFAOYSA-N lithium;ethene Chemical compound [Li+].[CH-]=C QHSTXVAUZZDMOS-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- WGCXTGBZBFBQPP-ZYONDNFOSA-N methyl (z)-7-[(1r,2r,3r)-3-hydroxy-2-[(e,3s)-3-hydroxyoct-1-enyl]-5-oxocyclopentyl]hept-5-enoate Chemical compound CCCCC[C@H](O)\C=C\[C@H]1[C@H](O)CC(=O)[C@@H]1C\C=C/CCCC(=O)OC WGCXTGBZBFBQPP-ZYONDNFOSA-N 0.000 description 1
- OJLOPKGSLYJEMD-URPKTTJQSA-N methyl 7-[(1r,2r,3r)-3-hydroxy-2-[(1e)-4-hydroxy-4-methyloct-1-en-1-yl]-5-oxocyclopentyl]heptanoate Chemical compound CCCCC(C)(O)C\C=C\[C@H]1[C@H](O)CC(=O)[C@@H]1CCCCCCC(=O)OC OJLOPKGSLYJEMD-URPKTTJQSA-N 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 229960005249 misoprostol Drugs 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 125000004365 octenyl group Chemical group C(=CCCCCCC)* 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000006478 transmetalation reaction Methods 0.000 description 1
- 125000004665 trialkylsilyl group Chemical group 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 150000003755 zirconium compounds Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C405/00—Compounds containing a five-membered ring having two side-chains in ortho position to each other, and having oxygen atoms directly attached to the ring in ortho position to one of the side-chains, one side-chain containing, not directly attached to the ring, a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, and the other side-chain having oxygen atoms attached in gamma-position to the ring, e.g. prostaglandins ; Analogues or derivatives thereof
Definitions
- the present invention relates to a method for easily, efficiently and industrially producing prostaglandins having a wide range of physiological activities and intermediates thereof.
- Natural prostaglandins have a unique structure, are known as compounds that exhibit a wide range of biological activities in trace amounts, have attracted the attention of many synthetic organic chemists, and have studied more detailed biological activities. It has been desired to synthesize organically and naturally large quantities of natural prostaglandins, which are difficult to obtain in large quantities from nature because of the nature of natural prostaglandins. Numerous synthetic studies have been conducted on these prostaglandin analogs because of their interest in drug development and the like.
- One of the typical methods for producing prostaglandins is to introduce an omega side chain by reacting an organometallic reagent with a / S-unsaturated cyclopentenone.
- a method of converting a vinyltin compound having a desired omega side chain structure or a corresponding vinyl iodide into a vinylcopper complex and performing conjugate addition to «, / 9 monounsaturated cyclopentenone (US Pat. No. 4,777, 275 [Japanese Patent Application Laid-Open No. 63-31 6786] and US Pat. No. 4,543,421 [Japanese Patent Publication No. 63-44743] are well-known methods.
- the vinyltin compound is subjected to an acid-labile addition of an acid-labile protecting group such as a trialkylsilyl group to the free hydroxyl group of the terminal alkyne compound, which is the starting compound, and then the tin hydride compound is converted to a radical. It is produced by acting under reaction conditions (US Pat. No. 4,087,447 [JP-A-53-108929]).
- the conversion to vinyl iodide is carried out by reacting iodine with the vinyl tin iodide.
- the obtained vinyl tin compound or the corresponding vinyl iodide is reacted with an alkyl metal reagent to form a vinyl metal compound, and then a copper (I) salt is added to form a vinyl copper complex.
- a copper (I) salt is added to form a vinyl copper complex.
- 1,3-unsaturated cyclopentenone is added to obtain a 1,4-conjugated addition product.
- one more step must be performed from the vinyl tin compound, and since there is no difference in reactivity between the vinyl tin compound and vinyl iodide, There is no noticeable advantage leading to vinyl iodide. Therefore, it is more advantageous to use a vinyltin compound from a vinyltin compound, but there is an undesired problem that geometric isomers are by-produced when the vinyltin compound is produced by the above-described method.
- Natural prostaglandins and many prostaglandin analogs have a double bond at the 13th and 14th positions, and the geometrical configuration has a structural feature of (E) configuration.
- (E) -vinyltin compound having the desired omega side chain structure is required to construct the compound.
- a vinyltin compound that is, a method in which a hydroxyl group of a hydroxy 1 alkyne is protected and then a tin hydride compound is reacted, about 20% of a (Z) vinyltin compound which is a geometric isomer is produced as a by-product.
- the introduction of a protecting group for hydroxy-1-alkynes also affects the yield of the deprotection step that ultimately produces prostaglandins.
- An aqueous acid solution or the like is used as the deprotection reagent.
- prostaglandins are unstable to acids, reaction conditions that use less acid are preferable.
- (E) A body synthesis method has been developed (BH Lipshutz et al., J. Am. Chera. Soc., 109, 4930, 1990). That is, a ( ⁇ ) -alkenyl zirconium intermediate is prepared from the terminal alkyne compound constituting the omega side chain and the zirconocene reagent, and the alkyl lithium and the copper reagent are reacted therewith to form a cuprate intermediate, By reacting this cuprate intermediate with ⁇ , / 3-unsaturated cyclopentenone, an intermediate of prostaglandins is synthesized.
- the zirconocene reagent Are expensive and difficult to obtain in large quantities.
- a step of protecting the hydroxyl group is included in the step of producing the terminal alkyne compound as a raw material, and it is industrially undesirable to produce prostaglandins in this method.
- an alkoxyvinylsulfanane corresponding to the omega side chain is formed, and an alkyllithium reagent is further added to form a vinyllithium complex.
- a separately prepared organocopper reagent is added, and ⁇ , /
- the synthesis of prostaglandin intermediates is being carried out by reacting with 9-unsaturated cyclopentenone. According to this method, synthesis of an intermediate of prostaglandins can be achieved in one pot, but the starting material ( ⁇ ) -bis (tributylstannyl) ethylene must be produced through the following two steps.
- the problem to be solved by the present application is to provide a method for easily and efficiently producing prostaglandins and intermediates thereof and industrially advantageously.
- the inventors of the present invention have conducted intensive studies to overcome such disadvantages, and as a result, have invented a method for industrially and advantageously producing prostaglandins by the steps shown in the synthetic pathway (I). That is, the hydroxy-1-alkynes represented by the formula (II) are reacted with the tin hydride compound represented by the formula (III), and the (E, Z) -hydroxyvinyltin compound represented by the formula (IV) is converted to After that, the (E) -isomer and the (Z) -isomer are separated by silica gel gel chromatography to obtain the (E) -hydroxyvinyl tin compound of the formula (V).
- the method for producing prostaglandins according to the above synthetic route (I) has the following features.
- Hydroxy-1-alkynes which are the raw materials of the omega side chain represented by the formula (II), can be converted to hydroxyvinyltin compounds represented by the formula (IV) even without protection of the hydroxyl group. .
- the site where the hydrogen of the hydroxyl group is exchanged with lithium does not react with the ⁇ -unsaturated cyclopentenone in the formula (V I I), and easily returns to the hydroxyl group in the post-treatment stage.
- the conjugate addition reaction is carried out using the omega side-chain raw material compound having a free hydroxyl group under the condition that at least an equivalent amount of the alkyllithium reagent is added to the tin compound at the stage of forming the cuprate complex. Proceeds with good yield.
- the prostaglandin intermediate represented by the formula (VIII) can be easily treated with an acid to facilitate deprotection of the hydroxyl group at the 11-position. Prostaglandins can be obtained in much higher yields than when the hydroxyl-protecting group is at the 11-position and in the omega side chain.
- prostaglandins and intermediates thereof can be produced simply, efficiently, and industrially advantageously.
- ⁇ is ethylene or (Z) -vinylene
- X is CH 2 OR 2 or C 0 2 R 2
- R 2 is an alkyl group having 1 to 5 carbon atoms, H or a protecting group.
- R ⁇ (OH) is a linear or branched alkyl group having 4 to 10 carbon atoms having a secondary or tertiary hydroxyl group, and the configuration of the hydroxyl group is R-form, S-form or R-form. It is a mixture of S-forms, and the configuration of the branched chain is R-form, S-form or a mixture of R-form and S-form.
- the steric form of the formula (I) represents a relative steric configuration, and does not limit whether it is an optically active substance or a racemic form.
- the method for producing prostaglandins represented by) is as follows.
- R 3 represents a lower alkyl group having 1 to 6 carbon atoms, phenyl or cyclohexyl.
- hydroxy-1-alkynes (II) used in this reaction are preferably represented by the following formula (XIII)
- R 6 and R 7 independently represent a straight-chain alkyl group or a branched-chain alkyl group having 1 to 7 carbon atoms or hydrogen, and the configuration of the hydroxyl group is R-form, S-form or R-form. And a S-isomer.
- R 8 represents a straight-chain or branched-chain alkyl group having 3 to 9 carbon atoms, and the configuration of the hydroxyl group is R-form, S-form or a mixture of R-form and S-form.) 3-hydroxy-11-alkynes and the like.
- R 3 in the above formula is a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a phenyl group, a cyclohexyl group.
- the compound is used in an amount of 1 to 10 equivalents, preferably 1 to 1.5 equivalents, to hydroxy-1-alkynes as the starting compound.
- the reaction is carried out at a reaction temperature of 0 to 200 ° C, preferably 50 to 150 ° C, for about 1 to 12 hours.
- a free radical initiator such as azobisisobutyronitrile or ultraviolet light. This reaction does not require an organic solvent.
- the reaction mixture is cooled to room temperature, and the (E) -form is separated from the (E) -form and (Z) -form by silica gel column chromatography.
- the E / Z generation ratio in this reaction is about 85:15.
- a vinyltin compound whose hydroxyl group is protected by an acid-labile protecting group or the like is very difficult to separate (E) -isomer and (Z) -isomer chromatographically, but free hydroxyl group
- a polarity difference occurs, so that a chromatographic separation can be performed.
- a solvent such as tetrahydrofuran or ether such as getyl ether, or an alkane such as pentane or hexane, or a mixed solvent of ether and alkyne.
- Y (Y one CN, - S CN or single OS 0 2 CF represents a 3.) alkyllithium represented by copper represented by (I) salt and R 4 L i (R 4 represents a lower alkyl group.)
- Add reagents, or add Cu Y (the definition of Y is the same as above.)
- R 4 Li (the definition of R 4 is the same as above.)
- Lewis acid or add Cu Y ( The definition of Y is the same as described above.)
- R 4 L i (The definition of R 4 is the same as described above.)
- Lewis acid and L i Z (Z is a fluorine, chlorine, bromine, or iodine atom) of which can be either a halogen atom or a -.
- 0 S 0 represents a 2 CF 3 lithium salt represented by :)
- RO represents a group in which the hydrogen of the hydroxyl group of Rc (OH) as defined above is replaced with lithium
- the amount of the alkyllithium reagent used in the present invention requires at least an equivalent for transmetallating the hydroxyl group of the starting tin compound in addition to the number of equivalents for forming the active copper site.
- the tin part of the tin compound becomes the active copper part, and the hydroxyl hydrogen Is converted to lithium respectively.
- the M site which is the active copper moiety in formula (VI), is determined by the type of reagent used and the number of equivalents of the reagent. More specifically, the M position of the formula (VI) is calculated by the following formulas (IX) to (XII).
- a copper (I) salt represented by CuY (the definition of Y is the same as described above) is stoichiometrically equivalent to one equivalent of R "L i (R" The definition is the same as above.)
- R 5 of the active copper moiety represented by the formula (IX) becomes IT (the definition of R 4 ). Is the same as above.)
- a copper-copper complex is formed.
- a vinyl copper complex, Rc (OLi), is formed.
- CuY the definition of Y is the same as above
- R 4 Li the definition of R 4 is the same as above.
- a vinyl copper complex having an active copper moiety represented by the formula (X) is formed.
- CuY the definition of Y is the same as described above
- R 4 Li the definition of R 4 is the same as above.
- the reaction temperature for preparing these vinyl copper complexes is in the range of ⁇ 100 to 40 ° C., preferably 180 to 30 ° C.
- the reaction time varies depending on the reaction amount, the type of reagent used, the type of solvent used, and the reaction temperature, but is usually about 1 minute to 8 hours.
- the alkyllithium reagent used in the present invention methyllithium, butyllithium and the like are used.
- the Lewis acid reagent used in the present invention a boron trifluoride etherate complex, trimethylsilyl chloride, aluminum chloride and the like are used.
- a vinyl copper complex having an active copper moiety represented by the formulas (IX) to (XII) has the following formula (VII)
- R 1 is an acid-labile protecting group such as tri (C t C hydrocarbonsilyl, tetrahydrobilanyl, tetrahydrofuranyl), and the definitions of A and X are the same as those described above.
- Formula (VII) does not limit whether the compound is optically active or racemic.
- the compound represented by the following formula (VIII) is subjected to a conjugate addition reaction with / S-unsaturated cyclopentenone.
- R ′, A, X and (OH) are the same as described above.
- the steric of formula (VIII) represents a relative configuration, and whether it is optically active or racemic There is no limitation.
- An intermediate of prostaglandins represented by is produced.
- the M site of the vinyl copper complex (where M is represented by formulas (IX) to (XII)) reacts with —unsaturated cyclopentenone, and the hydrogen of the hydroxyl group is exchanged for lithium.
- the site (OL i) easily returns to the hydroxyl group in the post-treatment stage without reacting.
- X in the formula is CH 2 OR 2 or C 0 2 R 2
- R 2 is 5 alkyl carbon number of 1 Group, H or a protecting group.
- alkyl group having 1 to 5 carbon atoms include a methyl group, an ethyl group, a propyl group, a butyl group, and a pentyl group.
- the vinyl copper complex of the formula (VI) (M is represented by the formulas (IX) to (XII)) is prepared in an amount of 1 to 10 equivalents, preferably 1 to 3 equivalents to ⁇ , / 3-unsaturated cyclopentenone. You.
- the reaction temperature of the conjugate addition reaction between the prepared vinyl copper complex and ⁇ / 3-unsaturated cyclopentenone is in the range of ⁇ 100 to 0 ° C., preferably 180 to 120 ° C.
- the reaction time varies depending on the reaction amount, the type of solvent used, and the reaction temperature, but is usually about 1 minute to 4 hours.
- the end point of the reaction is determined by the point at which the 3 / 3-unsaturated cyclopentenone disappears from the reaction system.
- the prostaglandin intermediate (VIII) was removed from the reaction mixture by kninching, extraction, liquid separation, filtration, etc., and then the organic solvent was distilled off. It is done.
- the resulting prostaglandin intermediate is a difficult-to-separate geometric isomer (13Z) —because it contains no isomers, purification can be performed very easily.
- the steric in formula (I) represents a relative steric configuration, and does not limit whether it is optically active or racemic.
- the prostaglandins represented by are produced.
- the acids used here are inorganic acids and organic acids such as P-toluenesulfonic acid, preferably acetic acid, hydrofluoric acid and hydrochloric acid.
- the solvent used in the present invention is a water-soluble and starting compound (VI
- reaction II can be dissolved, preferably, acetonitrile, tetrahydrofuran, or hydrated tetrahydrofuran.
- the reaction temperature is in the range of ⁇ 50 to 100 ° C., preferably 120 to 60 ° C.
- the reaction time varies depending on the reaction amount, the type of reagent used, the type of solvent used, and the reaction temperature, but is usually about 1 minute to 18 hours.
- the end point of the reaction is determined when the compound (VIII) disappears from the reaction system.
- the prostaglandins (I) are removed from the reaction mixture by extraction, liquid separation, filtration, etc., followed by distilling off the organic solvent, followed by silica gel column chromatography.
- Hydroxy-11 alkyne compound (XIII ') is a tin hydride compound represented by formula (III) without adding a protecting group to a hydroxyl group.
- a copper (I) salt represented by Cu Y (the definition of Y is the same as described above) is stoichiometrically equivalent to one equivalent of R 4 Li ( The definition of R 4 is the same as described above.)
- the stoichiometric addition of the alkyllithium reagent represented by the formula (3) is converted into the vinyl copper complex represented by the formula (IX ′): (VI ⁇ ), and the addition of a / 3-unsaturated cyclopentenone (the definition of R 1 is the same as described above.)
- a prostaglandin intermediate represented by the formula (VIII ′) (R The definition of 1 is the same as above.
- the protecting group R 1 (the definition of R 1 is the same as described above) of this compound can be easily deprotected by a suitable acid to obtain a prostaglandin represented by the formula ( ⁇ ).
- a suitable acid for a more detailed description of the reaction temperature, reaction time, solvent used, etc.
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Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002271035A CA2271035A1 (en) | 1996-11-14 | 1997-11-14 | Process for the preparation of prostaglandins |
US09/308,185 US6313341B1 (en) | 1996-11-14 | 1997-11-14 | Process for the preparation of prostaglandins |
AU49656/97A AU4965697A (en) | 1996-11-14 | 1997-11-14 | Process for the preparation of prostaglandins |
JP52239898A JP4153998B2 (ja) | 1996-11-14 | 1997-11-14 | プロスタグランジン類の製造方法 |
EP97912465A EP0943607B1 (en) | 1996-11-14 | 1997-11-14 | Process for the preparation of prostaglandins |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/337396 | 1996-11-14 | ||
JP33739696 | 1996-11-14 |
Publications (1)
Publication Number | Publication Date |
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WO1998021179A1 true WO1998021179A1 (fr) | 1998-05-22 |
Family
ID=18308246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/004158 WO1998021179A1 (fr) | 1996-11-14 | 1997-11-14 | Procede de preparation de prostaglandines |
Country Status (6)
Country | Link |
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US (1) | US6313341B1 (ja) |
EP (1) | EP0943607B1 (ja) |
JP (1) | JP4153998B2 (ja) |
AU (1) | AU4965697A (ja) |
CA (1) | CA2271035A1 (ja) |
WO (1) | WO1998021179A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005539079A (ja) * | 2002-09-18 | 2005-12-22 | ヨンスン ファイン ケミカル カンパニー リミテッド | プロスタグランジン誘導体の製造方法及びその出発物質 |
JP2020526559A (ja) * | 2017-07-11 | 2020-08-31 | キノイン・ジヨージセル・エーシユ・ベジエーセテイ・テルメーケク・ジヤーラ・ゼー・エル・テー | ミソプロストールの製造および精製の方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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AR071312A1 (es) | 2008-04-09 | 2010-06-09 | Scinopharm Taiwan Ltd | Proceso para la preparacion de analogos de prostaglandina y sus intermediarios |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53108929A (en) * | 1977-02-22 | 1978-09-22 | Searle & Co | Antisecretion prostaglandine intermediate and process for preparing same |
JPS6187638A (ja) * | 1984-10-08 | 1986-05-06 | Teijin Ltd | 2,3−二置換−4−置換シクロペンタノン類の製造法 |
JPS63316786A (ja) * | 1987-06-09 | 1988-12-26 | ジー.ディー.サール アンド カンパニー | 高次第二銅酸塩錯体の製造法 |
JPH02255654A (ja) * | 1989-03-29 | 1990-10-16 | Ono Pharmaceut Co Ltd | プロスタグランジンe誘導体の製造方法 |
JPH0692930A (ja) * | 1992-09-16 | 1994-04-05 | Teijin Ltd | 2,3―ジ置換―4―置換シクロペンタノン類の製造方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4543421A (en) | 1983-05-11 | 1985-09-24 | Miles Laboratories, Inc. | Conjugate addition of organocuprates generated from copper (I) cyanide and vinyl stannanes useful in prostaglandin analog synthesis |
US5329035A (en) | 1984-10-08 | 1994-07-12 | Teijin Limited | Process for producing 2,3-disubstituted-4-substituted cyclopentanones, enantiomorphs, or mixtures thereof |
JPH0773111B2 (ja) | 1986-08-11 | 1995-08-02 | ソニー株式会社 | 半導体装置 |
US5075478A (en) | 1991-01-17 | 1991-12-24 | G. D. Searle & Co. | Process for preparing prostaglandins |
-
1997
- 1997-11-14 WO PCT/JP1997/004158 patent/WO1998021179A1/ja active IP Right Grant
- 1997-11-14 US US09/308,185 patent/US6313341B1/en not_active Expired - Fee Related
- 1997-11-14 EP EP97912465A patent/EP0943607B1/en not_active Expired - Lifetime
- 1997-11-14 AU AU49656/97A patent/AU4965697A/en not_active Abandoned
- 1997-11-14 JP JP52239898A patent/JP4153998B2/ja not_active Expired - Fee Related
- 1997-11-14 CA CA002271035A patent/CA2271035A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53108929A (en) * | 1977-02-22 | 1978-09-22 | Searle & Co | Antisecretion prostaglandine intermediate and process for preparing same |
JPS6187638A (ja) * | 1984-10-08 | 1986-05-06 | Teijin Ltd | 2,3−二置換−4−置換シクロペンタノン類の製造法 |
JPS63316786A (ja) * | 1987-06-09 | 1988-12-26 | ジー.ディー.サール アンド カンパニー | 高次第二銅酸塩錯体の製造法 |
JPH02255654A (ja) * | 1989-03-29 | 1990-10-16 | Ono Pharmaceut Co Ltd | プロスタグランジンe誘導体の製造方法 |
JPH0692930A (ja) * | 1992-09-16 | 1994-04-05 | Teijin Ltd | 2,3―ジ置換―4―置換シクロペンタノン類の製造方法 |
Non-Patent Citations (1)
Title |
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See also references of EP0943607A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005539079A (ja) * | 2002-09-18 | 2005-12-22 | ヨンスン ファイン ケミカル カンパニー リミテッド | プロスタグランジン誘導体の製造方法及びその出発物質 |
JP2020526559A (ja) * | 2017-07-11 | 2020-08-31 | キノイン・ジヨージセル・エーシユ・ベジエーセテイ・テルメーケク・ジヤーラ・ゼー・エル・テー | ミソプロストールの製造および精製の方法 |
Also Published As
Publication number | Publication date |
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EP0943607B1 (en) | 2005-01-26 |
US6313341B1 (en) | 2001-11-06 |
CA2271035A1 (en) | 1998-05-22 |
EP0943607A1 (en) | 1999-09-22 |
JP4153998B2 (ja) | 2008-09-24 |
AU4965697A (en) | 1998-06-03 |
EP0943607A4 (en) | 2001-02-21 |
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