EP1636199A2 - Verfahren zur herstellung von phenylessig derivaten - Google Patents
Verfahren zur herstellung von phenylessig derivatenInfo
- Publication number
- EP1636199A2 EP1636199A2 EP04732562A EP04732562A EP1636199A2 EP 1636199 A2 EP1636199 A2 EP 1636199A2 EP 04732562 A EP04732562 A EP 04732562A EP 04732562 A EP04732562 A EP 04732562A EP 1636199 A2 EP1636199 A2 EP 1636199A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- general formula
- compound
- propyl
- methyl
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- WLJVXDMOQOGPHL-UHFFFAOYSA-N phenylacetic acid Chemical class OC(=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 62
- 150000003839 salts Chemical class 0.000 claims abstract description 31
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims abstract description 20
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims abstract description 17
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims abstract description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 7
- 125000006239 protecting group Chemical group 0.000 claims abstract description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 6
- 239000001257 hydrogen Substances 0.000 claims abstract description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 37
- 239000002253 acid Substances 0.000 claims description 25
- -1 2, 4-dimethoxybenzyl Chemical group 0.000 claims description 24
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 13
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 claims description 12
- 229940098779 methanesulfonic acid Drugs 0.000 claims description 10
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 10
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 9
- 238000000634 powder X-ray diffraction Methods 0.000 claims description 8
- 125000001424 substituent group Chemical group 0.000 claims description 8
- QBYIENPQHBMVBV-HFEGYEGKSA-N (2R)-2-hydroxy-2-phenylacetic acid Chemical compound O[C@@H](C(O)=O)c1ccccc1.O[C@@H](C(O)=O)c1ccccc1 QBYIENPQHBMVBV-HFEGYEGKSA-N 0.000 claims description 6
- IWYDHOAUDWTVEP-UHFFFAOYSA-N R-2-phenyl-2-hydroxyacetic acid Natural products OC(=O)C(O)C1=CC=CC=C1 IWYDHOAUDWTVEP-UHFFFAOYSA-N 0.000 claims description 6
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 229960002510 mandelic acid Drugs 0.000 claims description 6
- 235000002906 tartaric acid Nutrition 0.000 claims description 6
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 6
- RWOLDZZTBNYTMS-UHFFFAOYSA-N 2-(2-chlorophenyl)-2-hydroxyacetic acid Chemical compound OC(=O)C(O)C1=CC=CC=C1Cl RWOLDZZTBNYTMS-UHFFFAOYSA-N 0.000 claims description 5
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 claims description 3
- BHZBRPQOYFDTAB-UHFFFAOYSA-N 2-(4-bromophenyl)-2-hydroxyacetic acid Chemical compound OC(=O)C(O)C1=CC=C(Br)C=C1 BHZBRPQOYFDTAB-UHFFFAOYSA-N 0.000 claims description 3
- BWSFWXSSALIZAU-UHFFFAOYSA-N 2-(4-chlorophenyl)-2-hydroxyacetic acid Chemical compound OC(=O)C(O)C1=CC=C(Cl)C=C1 BWSFWXSSALIZAU-UHFFFAOYSA-N 0.000 claims description 3
- 125000002927 2-methoxybenzyl group Chemical group [H]C1=C([H])C([H])=C(C(OC([H])([H])[H])=C1[H])C([H])([H])* 0.000 claims description 3
- 125000004217 4-methoxybenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1OC([H])([H])[H])C([H])([H])* 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 3
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 claims description 3
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 3
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims description 3
- MIOPJNTWMNEORI-GMSGAONNSA-N (S)-camphorsulfonic acid Chemical compound C1C[C@@]2(CS(O)(=O)=O)C(=O)C[C@@H]1C2(C)C MIOPJNTWMNEORI-GMSGAONNSA-N 0.000 claims description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 239000000010 aprotic solvent Substances 0.000 claims description 2
- 150000001735 carboxylic acids Chemical class 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 claims description 2
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 150000003892 tartrate salts Chemical class 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 34
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 27
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 27
- 239000012071 phase Substances 0.000 description 22
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 21
- 239000000047 product Substances 0.000 description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 18
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 15
- FAEKWTJYAYMJKF-QHCPKHFHSA-N GlucoNorm Chemical compound C1=C(C(O)=O)C(OCC)=CC(CC(=O)N[C@@H](CC(C)C)C=2C(=CC=CC=2)N2CCCCC2)=C1 FAEKWTJYAYMJKF-QHCPKHFHSA-N 0.000 description 13
- 239000012074 organic phase Substances 0.000 description 11
- 150000001412 amines Chemical class 0.000 description 10
- ZWDVQMVZZYIAHO-UHFFFAOYSA-N 2-fluorobenzaldehyde Chemical compound FC1=CC=CC=C1C=O ZWDVQMVZZYIAHO-UHFFFAOYSA-N 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 8
- 238000010992 reflux Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- PFKFTWBEEFSNDU-UHFFFAOYSA-N 1,1'-Carbonyldiimidazole Substances C1=CN=CN1C(=O)N1C=CN=C1 PFKFTWBEEFSNDU-UHFFFAOYSA-N 0.000 description 7
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 229960002354 repaglinide Drugs 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 6
- 150000003335 secondary amines Chemical class 0.000 description 5
- IDPURXSQCKYKIJ-UHFFFAOYSA-N 1-(4-methoxyphenyl)methanamine Chemical compound COC1=CC=C(CN)C=C1 IDPURXSQCKYKIJ-UHFFFAOYSA-N 0.000 description 4
- OTGSESBEJUHCES-UHFFFAOYSA-N 2-(3-ethoxy-4-ethoxycarbonylphenyl)acetic acid Chemical compound CCOC(=O)C1=CC=C(CC(O)=O)C=C1OCC OTGSESBEJUHCES-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 239000008346 aqueous phase Substances 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 238000011081 inoculation Methods 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 150000003141 primary amines Chemical class 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000012258 stirred mixture Substances 0.000 description 4
- IWYDHOAUDWTVEP-ZETCQYMHSA-N (S)-mandelic acid Chemical compound OC(=O)[C@@H](O)C1=CC=CC=C1 IWYDHOAUDWTVEP-ZETCQYMHSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000005711 Benzoic acid Substances 0.000 description 3
- 229960000583 acetic acid Drugs 0.000 description 3
- 238000010533 azeotropic distillation Methods 0.000 description 3
- 235000010233 benzoic acid Nutrition 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 239000012362 glacial acetic acid Substances 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 239000007868 Raney catalyst Substances 0.000 description 2
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 2
- 229910000564 Raney nickel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- JSKTWLMHDIONPG-GITCGBDTSA-N [(1S)-4-methoxy-1-[1-(2-piperidin-1-ylphenyl)pentyl]cyclohexa-2,4-dien-1-yl]methanamine Chemical compound N1(CCCCC1)C1=C(C=CC=C1)C(CCCC)[C@]1(CN)CC=C(C=C1)OC JSKTWLMHDIONPG-GITCGBDTSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 150000002466 imines Chemical class 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- DQDWATOXYCARFV-UHFFFAOYSA-M magnesium;2-methanidylpropane;bromide Chemical compound [Mg+2].[Br-].CC(C)[CH2-] DQDWATOXYCARFV-UHFFFAOYSA-M 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 229960003424 phenylacetic acid Drugs 0.000 description 2
- 239000003279 phenylacetic acid Substances 0.000 description 2
- 235000011007 phosphoric acid Nutrition 0.000 description 2
- 150000003016 phosphoric acids Chemical class 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- NHWQMJMIYICNBP-UHFFFAOYSA-N 2-chlorobenzonitrile Chemical compound ClC1=CC=CC=C1C#N NHWQMJMIYICNBP-UHFFFAOYSA-N 0.000 description 1
- FAEKWTJYAYMJKF-UHFFFAOYSA-N 2-ethoxy-4-[2-[[3-methyl-1-(2-piperidin-1-ylphenyl)butyl]amino]-2-oxoethyl]benzoic acid Chemical compound C1=C(C(O)=O)C(OCC)=CC(CC(=O)NC(CC(C)C)C=2C(=CC=CC=2)N2CCCCC2)=C1 FAEKWTJYAYMJKF-UHFFFAOYSA-N 0.000 description 1
- SLRMQYXOBQWXCR-UHFFFAOYSA-N 2154-56-5 Chemical compound [CH2]C1=CC=CC=C1 SLRMQYXOBQWXCR-UHFFFAOYSA-N 0.000 description 1
- QPGDSEDERQCXCZ-UHFFFAOYSA-N 4-(2,2-dimethylpropanoyloxy)-2,3-dihydroxy-4-oxobutanoic acid Chemical compound C(C(C)(C)C)(=O)OC(C(C(C(=O)O)O)O)=O QPGDSEDERQCXCZ-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 239000007818 Grignard reagent Substances 0.000 description 1
- 235000010650 Hyssopus officinalis Nutrition 0.000 description 1
- 240000001812 Hyssopus officinalis Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- FDCDHJUYWYZSHB-YANBTOMASA-N [(1S)-4-methoxy-1-[1-(2-piperidin-1-ylphenyl)butyl]cyclohexa-2,4-dien-1-yl]methanamine Chemical compound N1(CCCCC1)C1=C(C=CC=C1)C(CCC)[C@]1(CN)CC=C(C=C1)OC FDCDHJUYWYZSHB-YANBTOMASA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- MIOPJNTWMNEORI-UHFFFAOYSA-N camphorsulfonic acid Chemical class C1CC2(CS(O)(=O)=O)C(=O)CC1C2(C)C MIOPJNTWMNEORI-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- WZHCOOQXZCIUNC-UHFFFAOYSA-N cyclandelate Chemical class C1C(C)(C)CC(C)CC1OC(=O)C(O)C1=CC=CC=C1 WZHCOOQXZCIUNC-UHFFFAOYSA-N 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 150000004795 grignard reagents Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000002218 hypoglycaemic effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- UGVPKMAWLOMPRS-UHFFFAOYSA-M magnesium;propane;bromide Chemical compound [Mg+2].[Br-].CC[CH2-] UGVPKMAWLOMPRS-UHFFFAOYSA-M 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
- C07D295/12—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms
- C07D295/135—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms with the ring nitrogen atoms and the substituent nitrogen atoms separated by carbocyclic rings or by carbon chains interrupted by carbocyclic rings
-
- 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
Definitions
- the present invention relates to a process for the preparation of phenylacetic acid derivatives, in particular
- Repaglinide and related compounds are e.g. in EP 0 589 874 and EP 0 965 591. These compounds in particular have a hypoglycemic effect.
- the corresponding primary amine i.e. a (S) -1- (2-piperidino-phenyl) -1-alkylamine, or (S) -1- (2-piperidino-phenyl) -1-benzylamine, reacted with an appropriately substituted phenylacetic acid.
- the carboxyl group protected as an ester group and bound to the phenyl ring is then converted from the compound obtained into the free carboxyl group.
- R- L is a linear or branched alkyl radical with 1-6
- R 2 is methyl, ethyl or propyl, which is characterized in that one
- R 3 represents a leaving group or a suitable salt of a compound of the general formula (II), with a compound of the general formula (III)
- R 2 has the meaning given above, and R 4 represents hydrogen or a hydrolytically removable protective group, and then the optionally present hydrolytically removable protective group R 4 is removed.
- R- L is preferably methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, 2-methyl-propyl or benzyl, preferably 2-methyl-propyl.
- R 2 is preferably ethyl.
- R 3 as a leaving group preferably denotes benzyl or substituted benzyl or allyl, preferably substituted benzyl, which is substituted on the phenyl ring by at least one electronegative, electron-donating substituent.
- electronegative substituents are, for example, ( ⁇ ) alkoxy, preferably methoxy or ethoxy, or chlorine.
- benzyl residues as
- Leaving group can be used which carry a suitable, preferably electronegative, electron-donating substituent on the methylene (-CH 2 -) of the benzyl radical, such as ( ⁇ ) -alkyl or optionally substituted phenyl, in the latter case the methylene preferably two identical optionally substituted phenyl rings.
- Benzyl which is substituted on the phenyl ring by at least one methoxy group is preferred.
- R 3 is preferably 2-methoxybenzyl, 4-methoxybenzyl, or 2, 4-dimethoxybenzyl.
- R 4 preferably denotes hydrogen, methyl, ethyl, butyl, propyl and optionally substituted benzyl, preferably ethyl, butyl, propyl or benzyl.
- the reaction of the compound of formula (II) with a compound of formula (III) can be carried out under reaction conditions as are known from analogous reactions.
- the substituent R 3 of the compound of the general formula (II) is stable in alkaline conditions, but can be replaced or split off, for example, in an acidic environment.
- the coupling for the amide bond is preferably carried out in an organic solvent, such as, for example, benzene, toluene, tetrahydrofuran, ethyl acetate, methyl acetate, acetonitrile, dimethylformamide, preferably in an aprotic solvent, preferably in a polar aprotic solvent.
- the leaving group is split in the presence of an acid, such as hydrochloric acid, sulfuric acid, perchloric acid, trifluoroacetic acid, methanesulfonic acid, chlorosulfonic acid, p-toluenesulfonic acid, benzenesulfonic acid, preferably methanesulfonic acid, chlorosulfonic acid and / or p-toluenesulfonic acid, preferably methanesulfonic acid, preferably methanesulfonic acid, preferably methanesulfonic acid, preferably methanesulfonic acid. if necessary at elevated temperature. If necessary, the reaction is carried out at the reflux temperature.
- An acid value (pH) of less than 2 (pH ⁇ 2) is preferably used for this reaction, such as values in the presence of the acids mentioned, preferably in
- the molar ratio of the compound of the formula (II), or a suitable salt of the compound of the formula (II), to the acid used is preferably in the range from 1: 1 to 1:50, preferably in the range from 1: 1 to 1: 5th
- preferred preferred salts of the compound of the formula (II) are, in particular, salts of the compound of the formula (II) with optically active chiral acids known per se (referred to herein as "A"), such as, for example, optically active carboxylic acids, such as mandelic acid [C 6 H S - * CH (OH) COOH], which is optionally substituted on the phenyl ring, optically active camphorsulfonic acid, optically active tartaric acid and optically active substituted tartaric acids or else optically active phosphoric acids, such as 1.
- the present invention relates to a
- Substituted optically active mandelic acids are, for example, o-chloromandelic acid, p-chloromandelic acid, p-bromomandelic acid.
- Substituted optically active tartaric acids are tartaric acids esterified on the hydroxyl groups, for example di-0,0'-p-toluyl-tartaric acid or di-O, O '-pivaloyl-tartaric acid.
- the salt of formula (V) is formed, from which the amine of formula (II) can be obtained in high optical purity.
- the suitable chiral acid is occasionally optically left-turning or right-turning.
- the left-handed form is preferably used for the mandelic acid and the 2-chloromandelic acid. Whether the left- or right-rotating acid is optimal for the separation of the racemate can easily be determined by the person skilled in the art for the particular acid used.
- the described splitting of the racemic mixture of compounds corresponding to the general formula (IV) with a chiral acid "A” is new, as is the corresponding salt corresponding to the formula (V). It is also surprising that the salt formation with the secondary amine takes place so quickly and with such a high yield and high purity.
- the present invention relates to the compounds of the general formula (V) present as salts:
- the present invention also relates to a process for the preparation of the compounds of the general formula (V), which is characterized in that a racemic mixture of compounds corresponding to the general formula (IV):
- Low molecular weight alcohols for example methanol, ethanol, isop.ropanol, butanol (optionally in a mixture) are preferably used as solvents for the resolution with water, if miscible with water), low molecular weight ketones, e.g.
- C 1 -C 3 carboxylic acid esters esterified preferably with low molecular weight alcohols, cyclic and non- cyclic ethers, for example diethyl ether, dimethoxyethane, 1,4-dioxane (optionally in a mixture with water, if water-miscible) and /
- the molar ratio of amine [compound of the formula (IV)]: chiral acid in the preparation of the salt and the precipitation is in the range from about 3: 1 to 1:10, preferably in the range from about 2: 1 to 1: 2 ,
- the acid value (pH) during salt formation and precipitation is preferably in the range from 3.5 to 10.0, preferably in the range from 5.0 to 7.5.
- the reaction temperature is relatively uncritical and can be in the range from preferably 0 ° C. to 100 ° C., the salt being formed at elevated temperature and allowed to crystallize or precipitate out by cooling.
- the present invention further relates to a process for the preparation of the compounds of the general formula (II), which is characterized in that a salt of the general formula (V) is treated with a base, preferably with alkali, and thus from it the Releases compound of general formula (II).
- the racemic mixture of the compounds of the general formula (IV) is prepared, for example, by starting from 2-fluorobenzaldehyde and nucleophilically substituting the fluorine atom with piperidine. The resulting product is reacted with p-methoxybenzylamine to give the imine, and the imine obtained is then reacted with a Grignard reagent, the racemic mixture of the compounds corresponding to the general
- the present invention further relates to previously unknown polymorphic forms of repaglinide.
- Two polymorphic forms of repaglinide are known from the literature, namely one form (here called polymorphic form I) with a melting point of 132-133 ° C. and another polymorphic form (here called polymorphic form II) with a melting point of 102 ° C. It has now been found that four further polymorphic or pseudopoly- morphic forms of repaglinide exist. These other polymorphic forms have specific technical advantages, such as a different solution behavior, and are in part significantly more soluble and in part are also easier to formulate than the known forms.
- the polymorphic form III with a melting point of 118-119 ° C. is obtained, for example, by crystallization from a mixture of 2.0 parts of isopropanol and 20 parts of cyclohexane.
- the polymorphic form IV with a melting point of 105-107 ° C. is obtained, for example, by crystallization from a mixture of 30 parts of tert-butyl methyl ether and 27 parts of toluene.
- the polymorphic form V with a melting point of 73-76 ° C. is obtained, for example, by crystallization from methanol.
- This polymorphic form IV represents a hemimethanolate, ie the form contains one molecule of methanol per two molecules of repaglinide.
- the polymorphic form VI with a melting point of 66-70 ° C. is obtained, for example, by crystallization from 50 parts of methanol and 10 parts of water.
- This polymorphic form V is a hydrate with 0.25 equivalents of water per molecule of repaglinide.
- Phase is added 38.5 g of 4-methoxybenzylamine (0.28 mol) and the water formed is separated off with the aid of azeotropic distillation.
- the solution obtained is added to a freshly prepared solution of 90 g of n-propyl magnesium bromide (0.61 mol) in 630 ml of ether.
- After complete conversion is hydrolyzed with a mixture consisting of 35.1 g of glacial acetic acid and 130 g of water.
- 40.7 g (0.27 mol) of L-mandelic acid and 385 ml of acetonitrile are added to the separated organic phase and the mixture is heated to the reflux temperature. When cooling, crystals of the desired product are deposited after inoculation at about 50 ° C.
- Example 3 [(S) -1- (2-piperidino-phenyl) -3-methyl-1-butyl-N-benzyl-ammonium-L-mandelate] 1.68 g (0.012 mol) of potassium carbonate are refluxed in a mixture consisting of 4 ml of toluene, 4 ml of DMF and 1.3 g (0.01 mol) of 2-fluorobenzaldehyde, and 1.02 g (0.012 mol) of piperidine are added. After 4 hours, the product obtained is hydrolyzed with 3.0 ml of water and the phases are separated.
- the organic phase is separated and a well-stirred mixture of 49.1 g (0.19 mol) of 3-ethoxy-4-ethoxycarbonylphenylacetic acid and 43.2 g (0.27 mol) of 1,1'-carbonyl-diimidazole (CDI) in a mixture consisting of 350 ml Toluene and 200 ml of acetonitrile added.
- CDI 1,1'-carbonyl-diimidazole
- 300 ml of water are added and the phases are separated. 20 ml of water, 230 g (2.0 mol) of trifluoroacetic acid are first added to the organic phases. acid and then at reflux temperature 70 g (0.73 mol) methanesulfonic acid.
- the middle phase is diluted with 100 ml of ethanol and 250 ml of toluene, and 421 g of approx. 17% potassium hydroxide solution (1.3 mol) are added.
- the phases are separated.
- the aqueous phase is acidified to pH 5.1 with hydrochloric acid and extracted with 300 ml of ethyl acetate.
- the ethyl acetate phase is concentrated to a third. When cooling, the product precipitates after inoculation. It is filtered off at room temperature.
- 4-methoxybenzylamine become a well-stirred mixture of 4.61 g (0.018 mol) of 3-ethoxy-4-ethoxycarbonyl-phenyl-acetic acid and 5.02 g (0.031 mol) of 1, 1 '-carbonyl-diimidazole in a mixture consisting of 15 ml of toluene and 10 ml of acetonitrile added. After the coupling reaction is complete, 15 ml of water are added and the phases obtained are separated. First add 2.0 ml to the organic phases
- Example 7 [(S) (+) -2-ethoxy-4- [N- [1- (2-piperidino-phenyl) -3-methyl-1-butyl] aminocarbonylmethyl] benzoic acid] 1.0 g (0.002 mol) (S) -1- (2-piperidino-phenyl) -3-methyl-1-butyl-N-benzylammonium-L-mandelate is dissolved in 6.0 ml of toluene and 3.0 g of 4% sodium hydroxide solution ( 0.003 mol) added.
- the organic phase is separated off and a well-stirred mixture of 0.52 g (0.002 mol) of 3-ethoxy-4-ethoxycarbonylphenylacetic acid and 0.43 g (0.0027 mol) of 1,1'-carbonyldiimidazole in a mixture consisting of 3.5 ml of toluene and 2.0 ml of acetonitrile were added.
- 3.0 ml of water are added and the phases are separated.
- 0.2 ml of water, 2.3 g (0.02 mol) of trifluoroacetic acid and then 0.7 g (0.007 mol) of methanesulfonic acid are added to the organic phases at reflux temperature.
- Example 9 (Polymorph IV) 6.0 g (S) (+) -2-ethoxy-4- [N- [1- (2-piperidino-phenyl) -3-methyl-1-butyl] aminocarbonylmethyl] benzoic acid are mixed in a mixture consisting of 30 g tert- Butyl methyl ether and 27 g of toluene are heated until the solid has dissolved. It is cooled to 0 ° C. and the precipitated is filtered off
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Hydrogenated Pyridines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH8472003 | 2003-05-14 | ||
| PCT/CH2004/000292 WO2004101540A2 (de) | 2003-05-14 | 2004-05-13 | Verfahren zur herstellung von phenylessigsäurederivaten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1636199A2 true EP1636199A2 (de) | 2006-03-22 |
Family
ID=33438099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04732562A Withdrawn EP1636199A2 (de) | 2003-05-14 | 2004-05-13 | Verfahren zur herstellung von phenylessig derivaten |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7915421B2 (de) |
| EP (1) | EP1636199A2 (de) |
| WO (1) | WO2004101540A2 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8101769B2 (en) * | 2007-02-15 | 2012-01-24 | Actavis Group Ptc Ehf | Process for preparing ethyl (S)-2-ethoxy-4-[N-[1-(2-piperidinophenyl)-3-methyl-1-butyl]aminocarbonyl methyl]benzoate and use thereof for the preparation of Repaglinide |
| CN101772491A (zh) * | 2007-06-06 | 2010-07-07 | 阿克塔维什集团Ptc公司 | 基本不含有二聚体杂质的瑞格列奈 |
| CN101481363B (zh) * | 2008-01-10 | 2011-05-04 | 江苏豪森药业股份有限公司 | 一种制备瑞格列奈的方法 |
| CN101538253B (zh) * | 2008-03-21 | 2012-03-21 | 江苏豪森医药集团连云港宏创医药有限公司 | 一种制备瑞格列奈中间体的方法 |
| EP2177221A1 (de) | 2008-10-20 | 2010-04-21 | Krka Tovarna Zdravil, D.D., Novo Mesto | Verfahren zur Erzeugung von weitgehend optisch reinem Repaglinid und seinen Vorläufern |
| EP2358369A1 (de) * | 2008-10-20 | 2011-08-24 | Krka Tovarna Zdravil, D.D., Novo Mesto | Verfahren zur herstellung von weitgehend optisch reinem repaglinid und vorstufen davon |
| EP2364977A1 (de) * | 2010-01-26 | 2011-09-14 | Reuter Chemische Apparatebau KG | Verfahren zur Enantiomerenanreicherung von 3-Methyl-1-(2-Piperidinphenyl)-1-Butylamin |
| CN101781272B (zh) * | 2010-02-11 | 2012-12-05 | 上海百灵医药科技有限公司 | 一种瑞格列奈胺的制备方法及其中间体 |
| CN102786498A (zh) * | 2011-05-20 | 2012-11-21 | 江苏豪森医药集团连云港宏创医药有限公司 | 一种制备瑞格列奈的方法 |
| EP3214077B1 (de) | 2016-03-01 | 2020-03-11 | Zaklady Farmaceutyczne Polpharma S.A. | Verfahren zur reinigung eines pharmazeutischen wirkstoffs |
| CN107868005A (zh) * | 2016-09-28 | 2018-04-03 | 齐鲁工业大学 | 一种羧酸化合物的晶体结构及荧光性能 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5312924A (en) | 1983-12-30 | 1994-05-17 | Dr. Karl Thomae Gmbh | Phenylacetic acid benzylamides |
| DE3347565A1 (de) * | 1983-12-30 | 1985-07-11 | Thomae Gmbh Dr K | Neue phenylessigsaeurederivate, diese verbindungen enthaltende arzneimittel und verfahren zu ihrer herstellung |
| JP2921982B2 (ja) * | 1991-06-21 | 1999-07-19 | ドクトル カルル トーマエ ゲゼルシャフト ミット ベシュレンクテル ハフツング | (s)(+)−2−エトキシ−4−[n−[1−(2−ピペリジノ−フェニル)−3−メチル−1−ブチル〕アミノカルボニルメチル〕−安息香酸、この化合物を含む医薬組成物及びその調製方法 |
| DE59109240D1 (de) | 1991-06-21 | 2002-10-10 | Boehringer Ingelheim Pharma | Verfahren zur Herstellung von (S)-3-Methyl-1-(2-piperidino-phenyl)-1-butylamin |
| IN192527B (de) * | 2001-09-25 | 2004-04-24 | Ranbaxy Lab | |
| WO2004018442A1 (en) | 2002-08-23 | 2004-03-04 | Dr. Reddy's Laboratories Limited | Crystalline and amorphous forms of (s) -repaglinide and the processes for preparation thereof |
-
2004
- 2004-05-13 WO PCT/CH2004/000292 patent/WO2004101540A2/de not_active Ceased
- 2004-05-13 US US10/556,268 patent/US7915421B2/en not_active Expired - Fee Related
- 2004-05-13 EP EP04732562A patent/EP1636199A2/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004101540A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US7915421B2 (en) | 2011-03-29 |
| WO2004101540A3 (de) | 2005-03-03 |
| US20070123564A1 (en) | 2007-05-31 |
| WO2004101540A2 (de) | 2004-11-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0146080B1 (de) | Verfahren zur Racematspaltung bicyclischer Imino-alpha-carbonsäureester | |
| EP1773801A1 (de) | Verfahren zur gewinnung von reinem tetrahydrocannabinol | |
| EP0606065B1 (de) | Verfahren zur Herstellung von Biphenylderivaten | |
| EP1636199A2 (de) | Verfahren zur herstellung von phenylessig derivaten | |
| WO1997043244A1 (de) | Racemattrennung von ketamin | |
| DE2147023B2 (de) | Verfahren zur Herstellung von 1H- Tetrazol-Verbindungen | |
| SU1662349A3 (ru) | Способ получени замещенных 1Н-имидазолов или их солей присоединени нетоксичных, фармацевтически приемлемых кислот | |
| DE60004126T2 (de) | Verfahren zur Herstellung von (1R, 2S, 4R)-(-)-2-[(2'-(N,N-dimethylamino)-ethoxy)]-2-[phenyl]-1,7,7-tri-[methyl]-bicyclo[2.2.1]heptan und ihre pharmazeutisch akzeptierbaren Säure-Additions-Salze | |
| EP0216324A2 (de) | 4-Alkoxy-3-pyrrolin-2-on-1-yl-essigsäurealkyl- bzw. -benzylester sowie deren Herstellung | |
| CH668424A5 (de) | 4-benzyloxy-3-pyrrolin-2-on-l-yl-acetamid, dessen herstellung und verwendung. | |
| DE3811621A1 (de) | Verfahren zur herstellung von 1h-imidazol-5-carbon-saeureestern oder -nitrilen und von pyrrol-3,4-carbonsaeureestern oder -nitrilen sowie verwendung der hergestellten verbindungen zur synthese von pilocarpin | |
| CH638525A5 (de) | 3-(tetrazol-5-yl)-1-azaxanthone und verfahren zu ihrer herstellung. | |
| DE1918253A1 (de) | Verbessertes Verfahren zur Herstellung von 3-Hydroxyisoxazolverbindungen | |
| WO2007009143A2 (de) | Verfahren zur herstellung nebivolol | |
| CH632487A5 (en) | Process for preparing novel cyanoacetanilide derivatives | |
| DE69817974T2 (de) | Ein Verfahren zur Herstellung von Pyrrolidinon-Derivaten | |
| EP0657425A1 (de) | Verfahren zur Herstellung chiraler Aminoalkohole | |
| DE2354327A1 (de) | Verfahren zur herstellung von 6,7benzomorphanen | |
| DE2029185A1 (en) | 2-azaquinolizidine derivs and salts neurotropic and anti - -histamine agents synthesis | |
| EP1373241B1 (de) | Verfahren zur herstellung optisch aktiver dihydropyrone | |
| DE1445800C (de) | Verfahren zur Herstellung von Diben zoazepinen | |
| DE2813287A1 (de) | Verfahren zur herstellung von 2-benzoyl- 3,3-dimethyl-7-oxo-alpha-(4-benzyloxyphenyl) -4-thia-2,6-diazabicyclo-eckige klammer auf 3.2.0 eckige klammer zu heptan-6-essigsaeurebenzylester | |
| EP0396014A2 (de) | Substituierte Biphenylcarbonsäuren, Verfahren zu ihrer Herstellung und neue Zwischenprodukte | |
| DD234011A5 (de) | Verfahren zur herstellung neuer timald-zwischen-produkten | |
| DE3206886A1 (de) | Verfahren zur herstellung von 1-(4-chlorbenzoyl)-5-methoxy-2-methyl-3- indolacetoxyessigsaeure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20051214 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: RETTIG, MARTINC/O UTA HEUWIESER Inventor name: OTTEN, THOMAS Inventor name: MUELLER, ROLAND Inventor name: HECK, RAINER Inventor name: JUSTUS, MICHAEL |
|
| 17Q | First examination report despatched |
Effective date: 20100427 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: JUSTUS, MICHAEL Inventor name: RETTIG, MARTINC/O UTA HEUWIESER Inventor name: OTTEN, THOMAS Inventor name: HECK, RAINER Inventor name: MUELLER, ROLAND |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20110503 |