JPH09508107A - 純粋な鏡像的シクロペンタンおよびシクロペンテンβ−アミノ酸の新規な高度に鏡像選択的製造方法 - Google Patents
純粋な鏡像的シクロペンタンおよびシクロペンテンβ−アミノ酸の新規な高度に鏡像選択的製造方法Info
- Publication number
- JPH09508107A JPH09508107A JP7518818A JP51881895A JPH09508107A JP H09508107 A JPH09508107 A JP H09508107A JP 7518818 A JP7518818 A JP 7518818A JP 51881895 A JP51881895 A JP 51881895A JP H09508107 A JPH09508107 A JP H09508107A
- Authority
- JP
- Japan
- Prior art keywords
- carbon atoms
- straight
- branched alkyl
- chain
- hydrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 title claims description 9
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 title abstract description 6
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title description 5
- LPIQUOYDBNQMRZ-UHFFFAOYSA-N cyclopentene Chemical compound C1CC=CC1 LPIQUOYDBNQMRZ-UHFFFAOYSA-N 0.000 title description 3
- 150000001875 compounds Chemical class 0.000 claims abstract description 38
- 239000002585 base Substances 0.000 claims abstract description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 150000001412 amines Chemical class 0.000 claims abstract description 18
- 239000012442 inert solvent Substances 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 6
- 150000001408 amides Chemical class 0.000 claims abstract description 5
- 230000008707 rearrangement Effects 0.000 claims abstract description 5
- 230000004913 activation Effects 0.000 claims abstract description 3
- 238000006136 alcoholysis reaction Methods 0.000 claims abstract description 3
- 238000007796 conventional method Methods 0.000 claims abstract description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 77
- 125000000217 alkyl group Chemical group 0.000 claims description 54
- 239000001257 hydrogen Substances 0.000 claims description 49
- 229910052739 hydrogen Inorganic materials 0.000 claims description 49
- -1 cyano, methylthio, hydroxyl Chemical group 0.000 claims description 44
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 33
- 150000002431 hydrogen Chemical class 0.000 claims description 32
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 29
- 229910052736 halogen Inorganic materials 0.000 claims description 27
- 150000002367 halogens Chemical class 0.000 claims description 27
- 125000003545 alkoxy group Chemical group 0.000 claims description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 17
- 125000002252 acyl group Chemical group 0.000 claims description 17
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 17
- 125000001424 substituent group Chemical group 0.000 claims description 16
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 11
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 9
- LOUPRKONTZGTKE-WZBLMQSHSA-N Quinine Chemical compound C([C@H]([C@H](C1)C=C)C2)C[N@@]1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OC)C=C21 LOUPRKONTZGTKE-WZBLMQSHSA-N 0.000 claims description 8
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 8
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 claims description 8
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 claims description 7
- LOUPRKONTZGTKE-UHFFFAOYSA-N cinchonine Natural products C1C(C(C2)C=C)CCN2C1C(O)C1=CC=NC2=CC=C(OC)C=C21 LOUPRKONTZGTKE-UHFFFAOYSA-N 0.000 claims description 7
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Inorganic materials Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims description 6
- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 claims description 6
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 5
- 229930013930 alkaloid Natural products 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- KMPWYEUPVWOPIM-UHFFFAOYSA-N cinchonidine Natural products C1=CC=C2C(C(C3N4CCC(C(C4)C=C)C3)O)=CC=NC2=C1 KMPWYEUPVWOPIM-UHFFFAOYSA-N 0.000 claims description 5
- 125000006239 protecting group Chemical group 0.000 claims description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 claims description 4
- 150000003797 alkaloid derivatives Chemical class 0.000 claims description 4
- 125000000539 amino acid group Chemical group 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 125000004429 atom Chemical group 0.000 claims description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 4
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 4
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 claims description 4
- 239000000543 intermediate Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 125000004434 sulfur atom Chemical group 0.000 claims description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 3
- LJOQGZACKSYWCH-WZBLMQSHSA-N hydroquinine Chemical compound C1=C(OC)C=C2C([C@@H](O)[C@@H]3C[C@@H]4CCN3C[C@@H]4CC)=CC=NC2=C1 LJOQGZACKSYWCH-WZBLMQSHSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 125000005254 oxyacyl group Chemical group 0.000 claims description 3
- KMPWYEUPVWOPIM-YXUGBTPSSA-N (R)-[(2R,4S,5R)-5-ethenyl-1-azabicyclo[2.2.2]octan-2-yl]-(4-quinolinyl)methanol Chemical compound C1=CC=C2C([C@H]([C@@H]3N4CC[C@H]([C@H](C4)C=C)C3)O)=CC=NC2=C1 KMPWYEUPVWOPIM-YXUGBTPSSA-N 0.000 claims description 2
- 235000001258 Cinchona calisaya Nutrition 0.000 claims description 2
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical group 0.000 claims description 2
- 125000003342 alkenyl group Chemical group 0.000 claims description 2
- KMPWYEUPVWOPIM-KODHJQJWSA-N cinchonidine Chemical compound C1=CC=C2C([C@H]([C@H]3[N@]4CC[C@H]([C@H](C4)C=C)C3)O)=CC=NC2=C1 KMPWYEUPVWOPIM-KODHJQJWSA-N 0.000 claims description 2
- 125000000524 functional group Chemical group 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 230000000269 nucleophilic effect Effects 0.000 claims description 2
- 229960000948 quinine Drugs 0.000 claims description 2
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 claims description 2
- KMPWYEUPVWOPIM-LSOMNZGLSA-N cinchonine Chemical compound C1=CC=C2C([C@@H]([C@H]3N4CC[C@H]([C@H](C4)C=C)C3)O)=CC=NC2=C1 KMPWYEUPVWOPIM-LSOMNZGLSA-N 0.000 claims 2
- LOUPRKONTZGTKE-AFHBHXEDSA-N (r)-[(2r,4s,5r)-5-ethenyl-1-azabicyclo[2.2.2]octan-2-yl]-(6-methoxyquinolin-4-yl)methanol Chemical compound C([C@H]([C@H](C1)C=C)C2)CN1[C@H]2[C@H](O)C1=CC=NC2=CC=C(OC)C=C21 LOUPRKONTZGTKE-AFHBHXEDSA-N 0.000 claims 1
- 241000156724 Antirhea Species 0.000 claims 1
- LJOQGZACKSYWCH-AFHBHXEDSA-N Hydroquinidine Natural products C1=C(OC)C=C2C([C@@H](O)[C@H]3C[C@@H]4CCN3C[C@@H]4CC)=CC=NC2=C1 LJOQGZACKSYWCH-AFHBHXEDSA-N 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 150000001735 carboxylic acids Chemical group 0.000 claims 1
- 229960000811 hydroquinidine Drugs 0.000 claims 1
- 229960004251 hydroquinine Drugs 0.000 claims 1
- 230000000977 initiatory effect Effects 0.000 claims 1
- 125000003866 trichloromethyl group Chemical group ClC(Cl)(Cl)* 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 24
- 239000007864 aqueous solution Substances 0.000 abstract description 7
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 2
- 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 abstract 1
- 125000003277 amino group Chemical group 0.000 abstract 1
- 150000001576 beta-amino acids Chemical class 0.000 abstract 1
- 125000004185 ester group Chemical group 0.000 abstract 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 48
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 40
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 15
- 239000000203 mixture Substances 0.000 description 14
- 239000000047 product Substances 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 11
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 11
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 239000002253 acid Substances 0.000 description 9
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 8
- 239000000460 chlorine Substances 0.000 description 8
- 239000012071 phase Substances 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 7
- 125000003088 (fluoren-9-ylmethoxy)carbonyl group Chemical group 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 6
- 229910052794 bromium Inorganic materials 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
- 239000011737 fluorine Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 5
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 5
- 159000000000 sodium salts Chemical class 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- PAMIQIKDUOTOBW-UHFFFAOYSA-N 1-methylpiperidine Chemical compound CN1CCCCC1 PAMIQIKDUOTOBW-UHFFFAOYSA-N 0.000 description 4
- 238000005160 1H NMR spectroscopy Methods 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 229960000583 acetic acid Drugs 0.000 description 4
- 230000009435 amidation Effects 0.000 description 4
- 238000007112 amidation reaction Methods 0.000 description 4
- 150000008064 anhydrides Chemical class 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 238000004128 high performance liquid chromatography Methods 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 description 4
- 235000011152 sodium sulphate Nutrition 0.000 description 4
- 125000005931 tert-butyloxycarbonyl group Chemical group [H]C([H])([H])C(OC(*)=O)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 4
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 3
- HVCNXQOWACZAFN-UHFFFAOYSA-N 4-ethylmorpholine Chemical compound CCN1CCOCC1 HVCNXQOWACZAFN-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 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 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 3
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 3
- 239000012154 double-distilled water Substances 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 3
- UYWQUFXKFGHYNT-UHFFFAOYSA-N phenylmethyl ester of formic acid Natural products O=COCC1=CC=CC=C1 UYWQUFXKFGHYNT-UHFFFAOYSA-N 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- OOCCDEMITAIZTP-QPJJXVBHSA-N (E)-cinnamyl alcohol Chemical compound OC\C=C\C1=CC=CC=C1 OOCCDEMITAIZTP-QPJJXVBHSA-N 0.000 description 2
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- WTAPZWXVSZMMDG-UHFFFAOYSA-N 1,5-diphenylpenta-1,4-dien-3-one;palladium Chemical compound [Pd].C=1C=CC=CC=1C=CC(=O)C=CC1=CC=CC=C1 WTAPZWXVSZMMDG-UHFFFAOYSA-N 0.000 description 2
- WRJRZNHDCDDIFH-UHFFFAOYSA-N 4-methylidenecyclopentane-1,2-dicarboxylic acid Chemical compound OC(=O)C1CC(=C)CC1C(O)=O WRJRZNHDCDDIFH-UHFFFAOYSA-N 0.000 description 2
- VPCZJTZBDBBKCG-UHFFFAOYSA-N 5-methylidene-3a,4,6,6a-tetrahydrocyclopenta[c]furan-1,3-dione Chemical compound O=C1OC(=O)C2C1CC(=C)C2 VPCZJTZBDBBKCG-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 229910002666 PdCl2 Inorganic materials 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 125000001584 benzyloxycarbonyl group Chemical group C(=O)(OCC1=CC=CC=C1)* 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 2
- 229960001701 chloroform Drugs 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- JBDSSBMEKXHSJF-UHFFFAOYSA-N cyclopentanecarboxylic acid Chemical compound OC(=O)C1CCCC1 JBDSSBMEKXHSJF-UHFFFAOYSA-N 0.000 description 2
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- SATVIFGJTRRDQU-UHFFFAOYSA-N potassium hypochlorite Chemical compound [K+].Cl[O-] SATVIFGJTRRDQU-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- JWHOQZUREKYPBY-UHFFFAOYSA-N rubonic acid Natural products CC1(C)CCC2(CCC3(C)C(=CCC4C5(C)CCC(=O)C(C)(C)C5CC(=O)C34C)C2C1)C(=O)O JWHOQZUREKYPBY-UHFFFAOYSA-N 0.000 description 2
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- 239000000725 suspension Substances 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
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- ASJCSAKCMTWGAH-SYDPRGILSA-N (1r,2s)-cyclopentane-1,2-dicarboxylic acid Chemical compound OC(=O)[C@H]1CCC[C@H]1C(O)=O ASJCSAKCMTWGAH-SYDPRGILSA-N 0.000 description 1
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- YQTCQNIPQMJNTI-UHFFFAOYSA-N 2,2-dimethylpropan-1-one Chemical group CC(C)(C)[C]=O YQTCQNIPQMJNTI-UHFFFAOYSA-N 0.000 description 1
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- NMSRALOLNIBERV-UHFFFAOYSA-N 4,5,6,6a-tetrahydro-3ah-cyclopenta[c]furan-1,3-dione Chemical compound C1CCC2C(=O)OC(=O)C21 NMSRALOLNIBERV-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- JJOWIQMPCCUIGA-UHFFFAOYSA-N 4-(Trimethylsilyl)morpholine Chemical compound C[Si](C)(C)N1CCOCC1 JJOWIQMPCCUIGA-UHFFFAOYSA-N 0.000 description 1
- 125000002672 4-bromobenzoyl group Chemical group BrC1=CC=C(C(=O)*)C=C1 0.000 description 1
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- STFRZZWIBDBZTB-UHFFFAOYSA-N C(=O)O.C(C(C)C)OC(=O)Cl Chemical compound C(=O)O.C(C(C)C)OC(=O)Cl STFRZZWIBDBZTB-UHFFFAOYSA-N 0.000 description 1
- IAZIWFSNHRFDSY-UHFFFAOYSA-N C(C)C(=C)CCCC.[Na] Chemical compound C(C)C(=C)CCCC.[Na] IAZIWFSNHRFDSY-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 241000270722 Crocodylidae Species 0.000 description 1
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 description 1
- 240000008620 Fagopyrum esculentum Species 0.000 description 1
- 235000009419 Fagopyrum esculentum Nutrition 0.000 description 1
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- 239000005909 Kieselgur Substances 0.000 description 1
- 239000012359 Methanesulfonyl chloride Substances 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
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- 150000007513 acids Chemical class 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- OOCCDEMITAIZTP-UHFFFAOYSA-N allylic benzylic alcohol Natural products OCC=CC1=CC=CC=C1 OOCCDEMITAIZTP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- UCVMQZHZWWEPRC-UHFFFAOYSA-L barium(2+);hydrogen carbonate Chemical compound [Ba+2].OC([O-])=O.OC([O-])=O UCVMQZHZWWEPRC-UHFFFAOYSA-L 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- WXNOJTUTEXAZLD-UHFFFAOYSA-L benzonitrile;dichloropalladium Chemical compound Cl[Pd]Cl.N#CC1=CC=CC=C1.N#CC1=CC=CC=C1 WXNOJTUTEXAZLD-UHFFFAOYSA-L 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229950005499 carbon tetrachloride Drugs 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- DMSZORWOGDLWGN-UHFFFAOYSA-N ctk1a3526 Chemical compound NP(N)(N)=O DMSZORWOGDLWGN-UHFFFAOYSA-N 0.000 description 1
- ASJCSAKCMTWGAH-UHFFFAOYSA-N cyclopentane-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCCC1C(O)=O ASJCSAKCMTWGAH-UHFFFAOYSA-N 0.000 description 1
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 description 1
- WMKGGPCROCCUDY-PHEQNACWSA-N dibenzylideneacetone Chemical compound C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1 WMKGGPCROCCUDY-PHEQNACWSA-N 0.000 description 1
- 125000001142 dicarboxylic acid group Chemical group 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- BGRWYRAHAFMIBJ-UHFFFAOYSA-N diisopropylcarbodiimide Natural products CC(C)NC(=O)NC(C)C BGRWYRAHAFMIBJ-UHFFFAOYSA-N 0.000 description 1
- LXQXGFPPYLKKSD-UHFFFAOYSA-L disodium;2,2-diethylpropanedioate Chemical compound [Na+].[Na+].CCC(CC)(C([O-])=O)C([O-])=O LXQXGFPPYLKKSD-UHFFFAOYSA-L 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- NUKZAGXMHTUAFE-UHFFFAOYSA-N hexanoic acid methyl ester Natural products CCCCCC(=O)OC NUKZAGXMHTUAFE-UHFFFAOYSA-N 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- QTBFPMKWQKYFLR-UHFFFAOYSA-N isobutyl chloride Chemical compound CC(C)CCl QTBFPMKWQKYFLR-UHFFFAOYSA-N 0.000 description 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910000032 lithium hydrogen carbonate Inorganic materials 0.000 description 1
- HQRPHMAXFVUBJX-UHFFFAOYSA-M lithium;hydrogen carbonate Chemical compound [Li+].OC([O-])=O HQRPHMAXFVUBJX-UHFFFAOYSA-M 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 description 1
- 125000001160 methoxycarbonyl group Chemical group [H]C([H])([H])OC(*)=O 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000003232 p-nitrobenzoyl group Chemical group [N+](=O)([O-])C1=CC=C(C(=O)*)C=C1 0.000 description 1
- 125000006503 p-nitrobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1[N+]([O-])=O)C([H])([H])* 0.000 description 1
- 125000000636 p-nitrophenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)[N+]([O-])=O 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 description 1
- 125000000612 phthaloyl group Chemical group C(C=1C(C(=O)*)=CC=CC1)(=O)* 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- WYVAMUWZEOHJOQ-UHFFFAOYSA-N propionic anhydride Chemical compound CCC(=O)OC(=O)CC WYVAMUWZEOHJOQ-UHFFFAOYSA-N 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical compound C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 description 1
- 229960001404 quinidine Drugs 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- VYPDUQYOLCLEGS-UHFFFAOYSA-M sodium;2-ethylhexanoate Chemical compound [Na+].CCCCC(CC)C([O-])=O VYPDUQYOLCLEGS-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- DYHSDKLCOJIUFX-UHFFFAOYSA-N tert-butoxycarbonyl anhydride Chemical compound CC(C)(C)OC(=O)OC(=O)OC(C)(C)C DYHSDKLCOJIUFX-UHFFFAOYSA-N 0.000 description 1
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 1
- PIILXFBHQILWPS-UHFFFAOYSA-N tributyltin Chemical class CCCC[Sn](CCCC)CCCC PIILXFBHQILWPS-UHFFFAOYSA-N 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C229/46—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino or carboxyl groups bound to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton
- C07C229/48—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino or carboxyl groups bound to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton with amino groups and carboxyl groups bound to carbon atoms of the same non-condensed ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/30—Preparation of optical isomers
- C07C227/32—Preparation of optical isomers by stereospecific synthesis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
- C07C271/06—Esters of carbamic acids
- C07C271/08—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
- C07C271/24—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a ring other than a six-membered aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/74—Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/08—Systems containing only non-condensed rings with a five-membered ring the ring being saturated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.一般式(I) 式中、 AおよびLは水素を示すか、 あるいは AおよびDまたはEおよびLは、各々の場合で一緒に二重結合を形成し、 DおよびEは同一または異なり、そして水素、ハロゲンもしくはヒドロキシル を表すか、またはハロゲン、ヒドロキシル、フェニル、ベンジルオキシもしくは カルボニル、または各々の場合で最高6個の炭素原子を有する直鎖もしくは分枝 アルコキシ、アシルもしくはアルコキシカルボニル、または式−NR4R5 式中、 R4およびR5は同一もしくは異なり、そして水素、フェニルもしくは最高6 個の炭素原子を有する直鎖もしくは分枝アルキルを示す、 の基、から成る同一または異なる置換基により場合によってはモノ−からジ− 置換されてもよい最高8個の炭素原子を有する直鎖もしくは分枝アルキルを表す か、 あるいはDおよびEは一緒に式 または=N−OH 式中、 R6およびR7は同一もしくは異なり、そして水素もしくはハロゲン、または 各々の場合で最高8個の炭素原子を有する直鎖もしくは分枝アルキル、アルコキ シまたはオキシアシルを示すか、またはベンジルもしくはフェニルを示す、 の基、を表すか、 あるいは、 DおよびEは一緒に式=Oまたは=Sの基を表し、 R2は水素を表すか、あるいは アミノ−保護基を表すか、あるいは ヒドロキシルもしくはホルミル、または最高6個の炭素原子を有する直鎖もし くは分枝アシル、またはハロゲン、ニトロもしくはシアノ、または最高6個の炭 素原子を有する直鎖もしくは分枝アルキルから成る同一もしくは異なる置換基で 場合によっては最高2回置換されてもよいフェニルもしくはベンゾイルから成る 、同一もしくは異なる置換基により場合にってはモノ−からジ−置換されてもよ い最高8個の炭素原子を有する直鎖もしくは分枝アルキルを表すか、 あるいは、 最高8個の炭素原子を有する直鎖−もしくは分枝アシルを表すか、 あるいは、 場合によっては上記のように置換されてもよいベンゾイルを表すか、 あるいは、 式−SO2R8 式中、 R8は最高8個の炭素原子を有する直鎖もしくは分枝アルキルを示すか、ま たはベンジルもしくはフェニルを示し、後者の2つの基はハロゲン、ヒドロキシ ル、ニトロ、シアノ、トリフルオロメチルもしくはトリフルオロメトキシ、また は各々の場合で最高6個の炭素原子を有する直鎖もしくは分枝アルキル、アルコ キシもしくはアルコキシカルボニル、またはカルボキシル、または上記基−NR4 R5 式中、 R4およびR5は上記意味を有する、 から成る同一もしくは異なる置換基により場合によっては最高3回置換され てもよい、 の基を表すか、あるいは ハロゲン、ヒドロキシル、ニトロ、トリフルオロメチル、トリフルオロメトキ シ、各々の場合で最高6個の炭素原子を有する直鎖もしくは分枝アルキル、アシ ル、アルコキシもしくはアルコキシカルボニル、または式−NR4R5もしくは− SO2R8、 式中、R4、R5およびR8は上記意味を有する、 の基、から成る同一もしくは異なる置換基により場合によっては最高3回置換 されてもよいフェニルを表すか、 あるいは 式 式中、 R9は3−8個の炭素原子を有するシクロアルキル、6−10個の炭素原子を 有するアリールもしくは水素を示すか、または最高8個の炭素原子を有する直鎖 もしくは分枝アルキルを示し、 アルキルは場合によってはシアノ、メチルチオ、ヒドロキシル、メルカプトも しくはグアニジル、または式−NR11R12もしくはR13−OC−、 式中、 R11およびR12は互いに独立して水素、最高8個の炭素原子を有する直鎖も しくは分枝アルキルもしくはフェニルを表し、 そして R13はヒドロキシル、ベンジルオキシもしくは最高6個の炭素原子を有する アルコキシを示すか、または 上記の基−NR11R12を示すか、 あるいはアルキルは3−8個の炭素原子を有するシクロアルキルにより、また は場合によっては続いてヒドロキシル、ハロゲン、ニトロもしくは最高8個の炭 素原子を有するアルコキシにより、あるいは基−NR11R12 式中、R11およびR12は上記意味を有する、 により置換される6−10個の炭素原子を有するアリールにより場合によって は置換されてもよく、そして R10は水素もしくはアミノ−保護基を示す、 のアミノ酸残基を示し、 R3は水素を表すか、または場合によってはフェニルにより置換されてもよい 最高8個の炭素原子を有する直鎖もしくは分枝アルキルを表すか、 あるいは R2およびR3は一緒に式=CHR14 式中、 R14は水素、または場合によってはハロゲン、ヒドロキシル、フェニルもし くはカルボキシルにより、または各々の場合で最高6個の炭素原子を有する直鎖 もしくは分枝アルコキシもしくはアルコキシカルボニルにより置換されてもよい 最高8個の炭素原子を有する直鎖もしくは分枝アルキルを示す、 の基を表し、 Tは酸素もしくは硫黄原子を表すか、または−NH基を表し、 R1は水素を表すか、または最高8個の炭素原子を有する直鎖もしくは分枝ア ルキルもしくはフェニルを表し、後者の基はヒドロキシル、ハロゲン、ニトロ、 シアノ、カルボキシル、トリフルオロメチルもしくはトリフルオロメトキシ、直 鎖もしくは分枝アルコキシ、そして またフェニルの場合には各々の場合で最高6個の炭素原子を有する直鎖もしく は分枝アルキル、アシルもしくはアルコキシカルボニル、または式−NR4R5も しくは−SO2R8 式中、R4、R5およびR8は上記の意味を有する、 の基、から成る同一もしくは異なる置換基により最高3回置換されてもよいか 、 あるいはTが−NH基を表す場合には、 R1は式−SO2R8 式中、R8は上記の意味を有する、 の基を表す、 の鏡像異性体的に純粋なシクロペンタン−および−ペンテンβ-アミノ酸の、鏡 像選択的な製造法であって、一般式(II) 式中、 A、D、EおよびLは上記の意味を有する、 のメソ−ジカルボン酸無水物を、 一般式(III) R15−OH (III) 式中、 R15は、場合によってはシアノ、トリメチルシリル、フェニルもしくはトリク ロロメチルにより置換されてもよい、各々の場合で最高5個の炭素原子を有する 直鎖もしくは分枝アルキルを表すか、またはアルケニルを表す、 のアルコールを用いて、そして鏡像異性体的に純粋な状態で存在する等モル量の キラルアミン塩基の存在下の、不活性溶媒中での不斉アルコーリシスにより、始 めに中間体、一般式(IV) 式中、 A、D、E、LおよびR15は上記の意味を有し、 そして Vはキラルアミン塩基を表す、 の鏡像異性体的に純粋な塩の段階を介して、一般式(IVa) 式中、 A、D、E、LおよびR15は上記の意味を有する、 の鏡像異性体的に純粋な化合物に転化し、続いて遊離カルボン酸官能基の活性化 後、液体NH3を用いた反応により、一般式(V) 式中、 A、D、E、LおよびR15は上記の意味を有する、 の鏡像異性体的に純粋なアミドを製造し、 更なる工程で、前記生成物を不活性溶媒中で基R15の酵素的な、またはPd触媒 の存在下での除去により、各々の場合で求核助剤に応じて、一般式(VI)または (VIa) 式中、 A、D、EおよびLは上記の意味を有し、 そして Xはアルカリ金属またはアルカリ土類金属原子を表す、 の化合物に転換し、そして最終的にアルカリ金属次亜塩素酸塩またはアルカリ土 類金属次亜塩素酸塩をアルカリ金属水酸化物またはアルカリ土類金属水酸化物水 溶液中で使用してホフマン転位を行い(ここで、遊離のアミノ官能基は予め溶液 中で典型的なアミノ保護基によりブロックされ、この保護基は保護された化合物 の単離後に常法に従い除去される)、 それぞれの純粋な鏡像異性体を得ることを特徴とする、上記方法。 2.一般式(V) 式中、A、D、E、LおよびR15は請求の範囲第1項に記載の意味を 有する、 の化合物を、不活性溶媒中、酵素的に、もしくはPd触媒が存在下で、そしてそれ ぞれの場合に求核助剤の不在下で、基R15を除去することにより、一般式(VI) または(VIa) 式中、A、D、E、LおよびXは請求の範囲第1項に記載の意味を有する、 の化合物に転化することを特徴とする、請求の範囲第1項に記載の方法。 3.一般式(IVa) 式中、 AおよびLは水素を示すか、 あるいは AおよびDまたはEおよびLは、各々の場合で一緒に二重結合を形成し、 DおよびEは同一または異なり、そして水素、ハロゲンもしくはヒドロキシル を表すか、またはハロゲン、ヒドロキシル、フェニル、ベンジルオキシもしくは カルボニル、または各々の場合で最高6個の炭素 原子を有する直鎖もしくは分枝アルコキシ、アシルもしくはアルコキシカルボニ ル、または式−NR4R5 式中、 R4およびR5は同一もしくは異なり、そして水素、フェニルもしくは最高6 個の炭素原子を有する直鎖もしくは分枝アルキルを示す、 の基、から成る同一または異なる置換基により場合によってはモノ−からジ− 置換されてもよい最高8個の炭素原子を有する直鎖もしくは分枝アルキルを表す か、 あるいはDおよびEは一緒に式 または=N−OH 式中、 R6およびR7は同一もしくは異なり、そして水素もしくはハロゲン、または 各々の場合で最高8個の炭素原子を有する直鎖もしくは分枝アルキル、アルコキ シまたはオキシアシルを示すか、またはベンジルもしくはフェニルを示す、 の基、を表すか、 あるいは、 DおよびEは一緒に式=Oまたは=Sの基を表し、 R15はシアノ、トリメチルシリル、フェニルまたはトリクロロメチルにより場 合によっては置換されてもよい、各々の場合で最高5個の炭素原子を有する直鎖 もしくは分枝アルキルを表すか、またはアルケニ ルを表す、 の鏡像異性体的に純粋な化合物。 4.一般式(IV) 式中、 A、D、E、LおよびR15が請求の範囲第3項に記載の意味を有し、 そして、 Vはキラルアミン塩基を表す、 の鏡像異性体的に純粋な化合物。 5.キラルアミン塩基がアルカロイドまたはキナアルカロイドであることを特徴 とする、請求の範囲第4項に記載の鏡像異性体的に純粋な化合物。 6.キラルアミン塩基がキニン、ヒドロキニン、シンコニジン、エピキニジン、 エピシンコニジン、シンコニン、エピシンコニン、エピキニン、ヒドロキニジン 、4-クロロベンゾエート-エピキニンまたは4-クロロベンゾエート-エピシンコニ ンであることを特徴とする、請求の範囲第5項に記載の鏡像異性体的に純粋な化 合物。 7.一般式(IV) 式中、 A、D、E、LおよびR15が請求の範囲第3項に記載の意味を有する、 の鏡像異性体的に純粋な化合物。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4400749.3 | 1994-01-13 | ||
| DE4400749A DE4400749A1 (de) | 1994-01-13 | 1994-01-13 | Neues hochenantioselektives Verfahren zur Herstellung von enantiomerenreinen Cyclopentan- und -penten-beta-Aminosäuren |
| PCT/EP1995/000059 WO1995019337A1 (de) | 1994-01-13 | 1995-01-09 | NEUES HOCHENANTIOSELEKTIVES VERFAHREN ZUR HERSTELLUNG VON ENANTIOMERENREINEN CYCLOPENTAN- UND -PENTEN-β-AMINOSÄUREN |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005053995A Division JP2005187481A (ja) | 1994-01-13 | 2005-02-28 | 鏡像的に純粋なシクロペンタン |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09508107A true JPH09508107A (ja) | 1997-08-19 |
| JP4020425B2 JP4020425B2 (ja) | 2007-12-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51881895A Expired - Fee Related JP4020425B2 (ja) | 1994-01-13 | 1995-01-09 | 純粋な鏡像的シクロペンタンおよびシクロペンテンβ−アミノ酸の新規な高度に鏡像選択的製造方法 |
| JP2005053995A Pending JP2005187481A (ja) | 1994-01-13 | 2005-02-28 | 鏡像的に純粋なシクロペンタン |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| JP2005053995A Pending JP2005187481A (ja) | 1994-01-13 | 2005-02-28 | 鏡像的に純粋なシクロペンタン |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US5962724A (ja) |
| EP (2) | EP1256568A1 (ja) |
| JP (2) | JP4020425B2 (ja) |
| CN (1) | CN1138850A (ja) |
| AT (1) | ATE227259T1 (ja) |
| AU (1) | AU690626B2 (ja) |
| BR (1) | BR9506509A (ja) |
| CZ (1) | CZ192896A3 (ja) |
| DE (2) | DE4400749A1 (ja) |
| DK (1) | DK0788473T3 (ja) |
| EE (1) | EE9600136A (ja) |
| ES (1) | ES2185692T3 (ja) |
| FI (1) | FI962820A0 (ja) |
| HU (1) | HUT74935A (ja) |
| LV (1) | LV11612B (ja) |
| MX (1) | MX9602756A (ja) |
| NO (1) | NO314451B1 (ja) |
| NZ (1) | NZ278595A (ja) |
| PL (1) | PL315540A1 (ja) |
| PT (1) | PT788473E (ja) |
| SI (1) | SI0788473T1 (ja) |
| SK (1) | SK91296A3 (ja) |
| TW (1) | TW363966B (ja) |
| WO (1) | WO1995019337A1 (ja) |
| ZA (1) | ZA95208B (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008518985A (ja) * | 2004-11-03 | 2008-06-05 | エフ.ホフマン−ラ ロシュ アーゲー | 新規ジカルボキシアミド誘導体 |
| JP2011523654A (ja) * | 2008-06-05 | 2011-08-18 | ディーエスエム アイピー アセッツ ビー.ブイ. | (4s,5r)−ハーフエステルの調製方法 |
| JP2016069321A (ja) * | 2014-09-30 | 2016-05-09 | 富士フイルム株式会社 | 環構造を有するジカルボン酸モノエステルの製造方法、ジカルボン酸モノエステルアミン塩、ジカルボン酸モノエステルを用いた液晶化合物の製造方法 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19548825C2 (de) * | 1995-12-27 | 1999-03-25 | Rolf Dr Hermann | Neue, substituierte Cyclopentylaminderivate, Verfahren zu ihrer Herstellung und ihre Verwendung als Arzneimittel |
| DE19617772A1 (de) * | 1996-05-03 | 1997-11-13 | Bayer Ag | Neues effizientes und hochenantioselektives Verfahren zur Herstellung von enantiomerenreinen Cyclopentan-beta-aminosäuren |
| DE19727517A1 (de) * | 1997-06-30 | 1999-01-07 | Basf Ag | Racematspaltung von Aminosäureestern durch Enzym-katalysierte Acylierung |
| ATE323067T1 (de) | 1997-10-27 | 2006-04-15 | Warner Lambert Co | Zyklische aminosäuren und deren derivate als arzneimittel |
| AU2004242865A1 (en) | 2003-06-02 | 2004-12-09 | F. Hoffmann-La Roche Ag | Benzamide nitrile derivatives |
| US7084178B2 (en) | 2003-11-26 | 2006-08-01 | Bristol-Myers Squibb Company | Antiamyloid phenylsulfonamides: N-cycloalkylcarboxamides derivatives |
| CN1332934C (zh) * | 2005-01-14 | 2007-08-22 | 清华大学 | 一种用于氨基酸对映体分离的新型试剂 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4499079A (en) * | 1982-11-18 | 1985-02-12 | E. R. Squibb & Sons, Inc. | Carboxy and substituted carboxy alkanoyl and cycloalkanoyl peptides |
| AU673824B2 (en) * | 1992-05-29 | 1996-11-28 | Bayer Aktiengesellschaft | Cyclopentane- and -pentene-beta-amino acids |
-
1994
- 1994-01-13 DE DE4400749A patent/DE4400749A1/de not_active Withdrawn
-
1995
- 1995-01-09 HU HU9601913A patent/HUT74935A/hu unknown
- 1995-01-09 CZ CZ961928A patent/CZ192896A3/cs unknown
- 1995-01-09 WO PCT/EP1995/000059 patent/WO1995019337A1/de not_active Ceased
- 1995-01-09 CN CN95191208A patent/CN1138850A/zh active Pending
- 1995-01-09 EP EP02012474A patent/EP1256568A1/de not_active Withdrawn
- 1995-01-09 SI SI9530635T patent/SI0788473T1/xx unknown
- 1995-01-09 EP EP95906316A patent/EP0788473B1/de not_active Expired - Lifetime
- 1995-01-09 SK SK912-96A patent/SK91296A3/sk unknown
- 1995-01-09 EE EE9600136A patent/EE9600136A/xx unknown
- 1995-01-09 DK DK95906316T patent/DK0788473T3/da active
- 1995-01-09 JP JP51881895A patent/JP4020425B2/ja not_active Expired - Fee Related
- 1995-01-09 PL PL95315540A patent/PL315540A1/xx unknown
- 1995-01-09 DE DE59510446T patent/DE59510446D1/de not_active Expired - Fee Related
- 1995-01-09 NZ NZ278595A patent/NZ278595A/en unknown
- 1995-01-09 US US08/666,492 patent/US5962724A/en not_active Expired - Fee Related
- 1995-01-09 BR BR9506509A patent/BR9506509A/pt not_active Application Discontinuation
- 1995-01-09 AT AT95906316T patent/ATE227259T1/de not_active IP Right Cessation
- 1995-01-09 PT PT95906316T patent/PT788473E/pt unknown
- 1995-01-09 ES ES95906316T patent/ES2185692T3/es not_active Expired - Lifetime
- 1995-01-09 MX MX9602756A patent/MX9602756A/es unknown
- 1995-01-09 AU AU14554/95A patent/AU690626B2/en not_active Ceased
- 1995-01-12 ZA ZA95208A patent/ZA95208B/xx unknown
- 1995-01-17 TW TW084100358A patent/TW363966B/zh active
-
1996
- 1996-07-10 NO NO19962912A patent/NO314451B1/no unknown
- 1996-07-11 FI FI962820A patent/FI962820A0/fi unknown
- 1996-07-12 LV LVP-96-233A patent/LV11612B/lv unknown
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2005
- 2005-02-28 JP JP2005053995A patent/JP2005187481A/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008518985A (ja) * | 2004-11-03 | 2008-06-05 | エフ.ホフマン−ラ ロシュ アーゲー | 新規ジカルボキシアミド誘導体 |
| JP2011523654A (ja) * | 2008-06-05 | 2011-08-18 | ディーエスエム アイピー アセッツ ビー.ブイ. | (4s,5r)−ハーフエステルの調製方法 |
| JP2016069321A (ja) * | 2014-09-30 | 2016-05-09 | 富士フイルム株式会社 | 環構造を有するジカルボン酸モノエステルの製造方法、ジカルボン酸モノエステルアミン塩、ジカルボン酸モノエステルを用いた液晶化合物の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2185692T3 (es) | 2003-05-01 |
| ZA95208B (en) | 1995-09-08 |
| SI0788473T1 (en) | 2003-04-30 |
| PT788473E (pt) | 2003-02-28 |
| NZ278595A (en) | 1998-04-27 |
| HU9601913D0 (en) | 1996-09-30 |
| DE59510446D1 (de) | 2002-12-12 |
| AU1455495A (en) | 1995-08-01 |
| JP4020425B2 (ja) | 2007-12-12 |
| NO962912D0 (no) | 1996-07-10 |
| DK0788473T3 (da) | 2003-03-03 |
| BR9506509A (pt) | 1997-09-09 |
| FI962820A7 (fi) | 1996-07-11 |
| LV11612A (lv) | 1996-12-20 |
| JP2005187481A (ja) | 2005-07-14 |
| NO962912L (no) | 1996-07-10 |
| EP0788473B1 (de) | 2002-11-06 |
| EP1256568A1 (de) | 2002-11-13 |
| WO1995019337A1 (de) | 1995-07-20 |
| MX9602756A (es) | 1997-05-31 |
| TW363966B (en) | 1999-07-11 |
| LV11612B (en) | 1997-06-20 |
| AU690626B2 (en) | 1998-04-30 |
| FI962820A0 (fi) | 1996-07-11 |
| CZ192896A3 (en) | 1996-10-16 |
| PL315540A1 (en) | 1996-11-12 |
| ATE227259T1 (de) | 2002-11-15 |
| EE9600136A (et) | 1997-04-15 |
| HUT74935A (en) | 1997-03-28 |
| EP0788473A1 (de) | 1997-08-13 |
| NO314451B1 (no) | 2003-03-24 |
| US5962724A (en) | 1999-10-05 |
| DE4400749A1 (de) | 1995-07-20 |
| SK91296A3 (en) | 1996-12-04 |
| CN1138850A (zh) | 1996-12-25 |
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