NZ501628A - Resolving (S)-3-(aminomethyl)-5-methylhexanoic acid from racemic 3-(aminomethyl)-5-methylhexanoic acid - Google Patents
Resolving (S)-3-(aminomethyl)-5-methylhexanoic acid from racemic 3-(aminomethyl)-5-methylhexanoic acidInfo
- Publication number
- NZ501628A NZ501628A NZ501628A NZ50162896A NZ501628A NZ 501628 A NZ501628 A NZ 501628A NZ 501628 A NZ501628 A NZ 501628A NZ 50162896 A NZ50162896 A NZ 50162896A NZ 501628 A NZ501628 A NZ 501628A
- Authority
- NZ
- New Zealand
- Prior art keywords
- aminomethyl
- acid
- water
- methylhexanoic acid
- methylhexanoic
- Prior art date
Links
- AYXYPKUFHZROOJ-UHFFFAOYSA-N 3-(azaniumylmethyl)-5-methylhexanoate Chemical compound CC(C)CC(CN)CC(O)=O AYXYPKUFHZROOJ-UHFFFAOYSA-N 0.000 title claims abstract description 43
- AYXYPKUFHZROOJ-ZETCQYMHSA-N pregabalin Chemical compound CC(C)C[C@H](CN)CC(O)=O AYXYPKUFHZROOJ-ZETCQYMHSA-N 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000007787 solid Substances 0.000 claims abstract description 50
- 239000000203 mixture Substances 0.000 claims abstract description 49
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 34
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 27
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- IWYDHOAUDWTVEP-ZETCQYMHSA-N (S)-mandelic acid Chemical compound OC(=O)[C@@H](O)C1=CC=CC=C1 IWYDHOAUDWTVEP-ZETCQYMHSA-N 0.000 claims abstract description 17
- 239000003880 polar aprotic solvent Substances 0.000 claims abstract description 15
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 14
- QBYIENPQHBMVBV-HFEGYEGKSA-N (2R)-2-hydroxy-2-phenylacetic acid Chemical class O[C@@H](C(O)=O)c1ccccc1.O[C@@H](C(O)=O)c1ccccc1 QBYIENPQHBMVBV-HFEGYEGKSA-N 0.000 claims abstract description 12
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 239000002244 precipitate Substances 0.000 claims abstract description 9
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 7
- 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 11
- 150000001875 compounds Chemical class 0.000 claims description 11
- 229960002510 mandelic acid Drugs 0.000 claims description 9
- IWYDHOAUDWTVEP-SSDOTTSWSA-N (R)-mandelic acid Chemical compound OC(=O)[C@H](O)C1=CC=CC=C1 IWYDHOAUDWTVEP-SSDOTTSWSA-N 0.000 claims 2
- AYXYPKUFHZROOJ-SSDOTTSWSA-N pregabalin Chemical compound CC(C)C[C@@H](CN)CC(O)=O AYXYPKUFHZROOJ-SSDOTTSWSA-N 0.000 claims 2
- 239000003643 water by type Substances 0.000 claims 1
- 229960001760 dimethyl sulfoxide Drugs 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 25
- 229960003692 gamma aminobutyric acid Drugs 0.000 description 24
- 235000019441 ethanol Nutrition 0.000 description 23
- -1 (±)-isobutyl GABA Chemical compound 0.000 description 21
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 21
- 239000002253 acid Substances 0.000 description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 16
- 239000000047 product Substances 0.000 description 16
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 15
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 15
- 239000003054 catalyst Substances 0.000 description 14
- 229910052739 hydrogen Inorganic materials 0.000 description 14
- 239000001257 hydrogen Substances 0.000 description 14
- 150000003839 salts Chemical class 0.000 description 14
- YGHRJJRRZDOVPD-UHFFFAOYSA-N 3-methylbutanal Chemical compound CC(C)CC=O YGHRJJRRZDOVPD-UHFFFAOYSA-N 0.000 description 12
- 239000003513 alkali Substances 0.000 description 12
- 239000002904 solvent Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 11
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 10
- 229960000583 acetic acid Drugs 0.000 description 10
- BTCSSZJGUNDROE-UHFFFAOYSA-N gamma-aminobutyric acid Chemical compound NCCCC(O)=O BTCSSZJGUNDROE-UHFFFAOYSA-N 0.000 description 9
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 8
- 229910052759 nickel Inorganic materials 0.000 description 8
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 238000005481 NMR spectroscopy Methods 0.000 description 7
- 150000001340 alkali metals Chemical class 0.000 description 7
- 125000000217 alkyl group Chemical group 0.000 description 7
- 125000003118 aryl group Chemical group 0.000 description 7
- 238000004817 gas chromatography Methods 0.000 description 7
- 150000002431 hydrogen Chemical class 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 7
- 206010010904 Convulsion Diseases 0.000 description 6
- 238000010268 HPLC based assay Methods 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 125000000753 cycloalkyl group Chemical group 0.000 description 6
- 238000005292 vacuum distillation Methods 0.000 description 6
- 238000005160 1H NMR spectroscopy Methods 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 5
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 5
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 description 5
- 125000004494 ethyl ester group Chemical group 0.000 description 5
- 239000012362 glacial acetic acid Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 210000004556 brain Anatomy 0.000 description 4
- 230000000911 decarboxylating effect Effects 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000004128 high performance liquid chromatography Methods 0.000 description 4
- 238000005984 hydrogenation reaction Methods 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- IWYDHOAUDWTVEP-UHFFFAOYSA-M mandelate Chemical class [O-]C(=O)C(O)C1=CC=CC=C1 IWYDHOAUDWTVEP-UHFFFAOYSA-M 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 235000010755 mineral Nutrition 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 4
- 239000003586 protic polar solvent Substances 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 4
- ZQFYQLSPBFLIHX-UHFFFAOYSA-N 2-(aminomethyl)-5-methylhexanoic acid Chemical compound CC(C)CCC(CN)C(O)=O ZQFYQLSPBFLIHX-UHFFFAOYSA-N 0.000 description 3
- LCPQXKAEQQWPAB-UHFFFAOYSA-N 4-ethoxycarbonyl-7-methyloct-4-enoic acid Chemical compound CCOC(=O)C(CCC(O)=O)=CCC(C)C LCPQXKAEQQWPAB-UHFFFAOYSA-N 0.000 description 3
- MBZSCAJFNRHIKS-UHFFFAOYSA-N 5-cyano-4-ethoxycarbonyl-7-methyloctanoic acid Chemical compound CCOC(=O)C(CCC(O)=O)C(CC(C)C)C#N MBZSCAJFNRHIKS-UHFFFAOYSA-N 0.000 description 3
- MHPUGCYGQWGLJL-UHFFFAOYSA-N 5-methyl-hexanoic acid Chemical compound CC(C)CCCC(O)=O MHPUGCYGQWGLJL-UHFFFAOYSA-N 0.000 description 3
- 108091022930 Glutamate decarboxylase Proteins 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 230000001773 anti-convulsant effect Effects 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 230000036461 convulsion Effects 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003301 hydrolyzing effect Effects 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000002858 neurotransmitter agent Substances 0.000 description 3
- 150000002825 nitriles Chemical group 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- FQKHBLUVTTWCIW-UHFFFAOYSA-N 2-(3-methylbutylidene)pentanedioic acid Chemical compound CC(C)CC=C(C(O)=O)CCC(O)=O FQKHBLUVTTWCIW-UHFFFAOYSA-N 0.000 description 2
- CVKMFSAVYPAZTQ-UHFFFAOYSA-N 2-methylhexanoic acid Chemical compound CCCCC(C)C(O)=O CVKMFSAVYPAZTQ-UHFFFAOYSA-N 0.000 description 2
- 101150041968 CDC13 gene Proteins 0.000 description 2
- 238000006000 Knoevenagel condensation reaction Methods 0.000 description 2
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000001961 anticonvulsive agent Substances 0.000 description 2
- 229960003965 antiepileptics Drugs 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000010533 azeotropic distillation Methods 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000007942 carboxylates Chemical class 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
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- 239000000706 filtrate Substances 0.000 description 2
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- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
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- 238000005342 ion exchange Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
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- FKWSMBAMOQCVPV-UHFFFAOYSA-N magnesium dicyanide Chemical compound [Mg+2].N#[C-].N#[C-] FKWSMBAMOQCVPV-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
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- 230000001537 neural effect Effects 0.000 description 2
- 125000002560 nitrile group Chemical group 0.000 description 2
- 150000002828 nitro derivatives Chemical class 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 239000002798 polar solvent Substances 0.000 description 2
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 2
- 239000012521 purified sample Substances 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
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- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- PPIBJOQGAJBQDF-VXNVDRBHSA-N (4r,5s)-4-methyl-5-phenyl-1,3-oxazolidin-2-one Chemical compound C[C@H]1NC(=O)O[C@H]1C1=CC=CC=C1 PPIBJOQGAJBQDF-VXNVDRBHSA-N 0.000 description 1
- LTMRRSWNXVJMBA-UHFFFAOYSA-L 2,2-diethylpropanedioate Chemical compound CCC(CC)(C([O-])=O)C([O-])=O LTMRRSWNXVJMBA-UHFFFAOYSA-L 0.000 description 1
- XGUIXRJMZWDRSV-UHFFFAOYSA-N 2-(3-methylbut-1-enyl)pentanedioic acid Chemical compound CC(C)C=CC(C(O)=O)CCC(O)=O XGUIXRJMZWDRSV-UHFFFAOYSA-N 0.000 description 1
- MWFMGBPGAXYFAR-UHFFFAOYSA-N 2-hydroxy-2-methylpropanenitrile Chemical compound CC(C)(O)C#N MWFMGBPGAXYFAR-UHFFFAOYSA-N 0.000 description 1
- UBMASBWZWXREGH-UHFFFAOYSA-N 4-ethoxycarbonyl-7-methyloct-5-enoic acid Chemical compound CCOC(=O)C(CCC(O)=O)C=CC(C)C UBMASBWZWXREGH-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
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- 206010003591 Ataxia Diseases 0.000 description 1
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- WWZKQHOCKIZLMA-UHFFFAOYSA-N Caprylic acid Natural products CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
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- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
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- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
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- 125000003545 alkoxy group Chemical group 0.000 description 1
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- GONOPSZTUGRENK-UHFFFAOYSA-N benzyl(trichloro)silane Chemical compound Cl[Si](Cl)(Cl)CC1=CC=CC=C1 GONOPSZTUGRENK-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
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- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
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- SGDINNZGYDHHKM-UHFFFAOYSA-N dilithium;trimethylsilylazanide Chemical compound [Li+].[Li+].C[Si](C)(C)[NH-].C[Si](C)(C)[NH-] SGDINNZGYDHHKM-UHFFFAOYSA-N 0.000 description 1
- VNEBWJSWMVTSHK-UHFFFAOYSA-L disodium;3-hydroxynaphthalene-2,7-disulfonate Chemical compound [Na+].[Na+].C1=C(S([O-])(=O)=O)C=C2C=C(S([O-])(=O)=O)C(O)=CC2=C1 VNEBWJSWMVTSHK-UHFFFAOYSA-L 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- XBRGZVMBYLXWTE-UHFFFAOYSA-N ethyl 5-methylhex-2-enoate Chemical compound CCOC(=O)C=CCC(C)C XBRGZVMBYLXWTE-UHFFFAOYSA-N 0.000 description 1
- SHZIWNPUGXLXDT-UHFFFAOYSA-N ethyl hexanoate Chemical compound CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
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- 231100001261 hazardous Toxicity 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
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- 230000007062 hydrolysis Effects 0.000 description 1
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- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N n-hexanoic acid Natural products CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010956 selective crystallization Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000012453 solvate Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 230000000707 stereoselective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000001665 trituration Methods 0.000 description 1
Classifications
-
- 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
- C07C227/34—Preparation of optical isomers by separation of optical isomers
-
- 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
- C07C227/04—Formation of amino groups in compounds containing carboxyl groups
- C07C227/10—Formation of amino groups in compounds containing carboxyl groups with simultaneously increasing the number of carbon atoms in the carbon skeleton
-
- 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
- C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C229/04—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
- C07C229/06—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton
- C07C229/08—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to hydrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
- C07C255/19—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same saturated acyclic carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
- C07C255/19—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same saturated acyclic carbon skeleton
- C07C255/22—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same saturated acyclic carbon skeleton containing cyano groups and at least two carboxyl groups bound to the carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Seasonings (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/474,874 US5637767A (en) | 1995-06-07 | 1995-06-07 | Method of making (S)-3-(aminomethyl)-5-methylhexanoic acid |
| NZ308319A NZ308319A (en) | 1995-06-07 | 1996-05-13 | Method of making (s)-3-(aminomethyl)-5-methylhexanoic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NZ501628A true NZ501628A (en) | 2001-09-28 |
Family
ID=23885291
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NZ308319A NZ308319A (en) | 1995-06-07 | 1996-05-13 | Method of making (s)-3-(aminomethyl)-5-methylhexanoic acid |
| NZ501628A NZ501628A (en) | 1995-06-07 | 1996-05-13 | Resolving (S)-3-(aminomethyl)-5-methylhexanoic acid from racemic 3-(aminomethyl)-5-methylhexanoic acid |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NZ308319A NZ308319A (en) | 1995-06-07 | 1996-05-13 | Method of making (s)-3-(aminomethyl)-5-methylhexanoic acid |
Country Status (18)
| Country | Link |
|---|---|
| US (4) | US5637767A (enExample) |
| EP (1) | EP0830338B1 (enExample) |
| JP (1) | JP3874306B2 (enExample) |
| AT (1) | ATE210628T1 (enExample) |
| CA (1) | CA2219150C (enExample) |
| CZ (2) | CZ296895B6 (enExample) |
| DE (1) | DE69617948T2 (enExample) |
| DK (1) | DK0830338T3 (enExample) |
| EE (1) | EE04053B1 (enExample) |
| ES (1) | ES2170231T3 (enExample) |
| GE (1) | GEP19991870B (enExample) |
| HU (2) | HU228194B1 (enExample) |
| NZ (2) | NZ308319A (enExample) |
| PL (3) | PL185560B1 (enExample) |
| PT (1) | PT830338E (enExample) |
| SI (1) | SI0830338T1 (enExample) |
| SK (2) | SK283507B6 (enExample) |
| WO (1) | WO1996040617A1 (enExample) |
Families Citing this family (71)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5858736A (en) * | 1996-05-17 | 1999-01-12 | E. I. Du Pont De Nemours And Company | Preparation of lactams from aliphatic α,ω-dinitriles |
| IL126999A (en) | 1996-07-24 | 2002-03-10 | Warner Lambert Co | Pharmaceutical preparations containing isobutylgaba and its history for use in the treatment of pain |
| US6194459B1 (en) | 1997-08-19 | 2001-02-27 | Warner-Lambert Company | Methods for treating physiological conditions associated with the use, or sequelae of use, of cocaine or other psychomotors stimulants |
| HK1046401B (zh) * | 1999-06-10 | 2005-12-02 | 沃尼尔‧朗伯有限责任公司 | 单和双取代的3-丙基-γ-氨基丁酸 |
| PT1250311E (pt) * | 2000-01-27 | 2004-07-30 | Warner Lambert Co | Sintese assimetrica de pregabalina |
| GB2368579A (en) * | 2000-10-31 | 2002-05-08 | Parke Davis & Co Ltd | Azole pharmaceutical agents |
| US7169812B2 (en) * | 2003-07-01 | 2007-01-30 | Medtronic, Inc. | Process for producing injectable gabapentin compositions |
| EP1543831A1 (en) * | 2003-12-18 | 2005-06-22 | Pfizer GmbH Arzneimittelwerk Gödecke | Pregabalin composition |
| BRPI0508615A (pt) * | 2004-03-12 | 2007-07-31 | Warner Lambert Co | lingandos de bisfosfina c1-simétrica e seu emprego na sìntese assimétrica de pregabalina |
| UA82292C2 (uk) * | 2004-04-14 | 2008-03-25 | Пфайзер Продактс Инк. | Спосіб стереоселективного біоперетворення аліфатичних динітрилів в ціанокарбонові кислоти (варіанти) |
| EA200800909A1 (ru) * | 2004-06-21 | 2008-08-29 | УОРНЕР-ЛАМБЕРТ КОМПАНИ ЭлЭлСи | Получение прегабалина и родственных соединений |
| CA2603129A1 (en) * | 2005-04-06 | 2006-10-12 | Teva Pharmaceutical Industries Ltd. | Crystalline forms of pregabalin |
| MX2007012606A (es) * | 2005-04-11 | 2008-01-11 | Teva Pharma | Proceso para elaborar (s)-pregabalina. |
| US7488846B2 (en) * | 2005-04-11 | 2009-02-10 | Teva Pharmaceuical Industries Ltd. | Pregabalin free of lactam and a process for preparation thereof |
| EP1879852A1 (en) * | 2005-05-10 | 2008-01-23 | Teva Pharmaceutical Industries Ltd | Pregabalin free of lactam and a process for preparation thereof |
| ATE486841T1 (de) * | 2005-05-10 | 2010-11-15 | Teva Pharma | Verfahren zur herstellung von pregabalin und salzen daraus |
| ATE523484T1 (de) * | 2005-05-10 | 2011-09-15 | Teva Pharma | Optische lösung a us 3-carbamoylmethyl-5-methyl- hexansäure |
| BRPI0605833A (pt) * | 2005-05-10 | 2007-12-18 | Teva Pharma | pregabalina livre de ácido isobutilglutárico e um processo para sua preparação |
| WO2007035890A1 (en) * | 2005-09-19 | 2007-03-29 | Teva Pharmaceutical Industries Ltd. | An asymmetric synthesis of ( s ) - ( + ) -3- (aminomethyl) -5-methylhexanoic acid |
| NL2000281C2 (nl) | 2005-11-02 | 2007-08-07 | Pfizer Prod Inc | Vaste farmaceutische samenstellingen die pregabaline bevatten. |
| EP1904486A2 (en) * | 2006-04-24 | 2008-04-02 | Teva Pharmaceutical Industries Ltd | Processes for the synthesis of 3-isobutylglutaric acid |
| WO2007139933A2 (en) * | 2006-05-24 | 2007-12-06 | Teva Pharmaceutical Industries Ltd. | Processes for the preparation of r-(+)-3-(carbamoyl methyl)-5-methylhexanoic acid and salts thereof |
| WO2007143152A2 (en) * | 2006-05-31 | 2007-12-13 | Teva Pharmaceutical Industries Ltd. | Preparation of (s)-pregabalin-nitrile |
| EP2071032A3 (en) | 2006-05-31 | 2009-07-08 | Teva Pharmaceutical Industries Ltd | The use of enzymatic resolution for the preparation of intermediates of pregabalin |
| AU2007274034B2 (en) * | 2006-07-12 | 2012-11-15 | Generics [Uk] Limited | Process of preparing a gamma-amino acid |
| WO2008062460A2 (en) * | 2006-10-06 | 2008-05-29 | Cadila Healthcare Limited | Crystalline forms of pregabalin |
| US8097754B2 (en) * | 2007-03-22 | 2012-01-17 | Teva Pharmaceutical Industries Ltd. | Synthesis of (S)-(+)-3-(aminomethyl)-5-methyl hexanoic acid |
| WO2008138874A1 (en) * | 2007-05-09 | 2008-11-20 | Chemo Ibérica, S.A. | Process for preparing (s)-pregabalin by optical resolution of racemic pregabalin |
| EP1992609A1 (en) * | 2007-05-14 | 2008-11-19 | Dipharma Francis S.r.l. | A process for the preparation of a (S)(+)-3-(aminomethyl)-5-methylhexanoic acid |
| WO2009001372A2 (en) * | 2007-06-25 | 2008-12-31 | Manne Satyanarayana Reddy | A novel process for the preparation of pregabalin |
| WO2009044409A2 (en) * | 2007-10-01 | 2009-04-09 | Natco Pharma Limited | Novel resolution process for pregabalin |
| KR20090101462A (ko) * | 2007-10-03 | 2009-09-28 | 테바 파마슈티컬 인더스트리즈 리미티드 | 프레가발린-4-엘리미네이트, 프레가발린 5-엘리미네이트, 기준 마커 및 표준물로서의 이들의 용도, 및 이들을 낮은 수준으로 함유하는 프레가발린의 제조 방법 |
| ITMI20072262A1 (it) | 2007-12-03 | 2009-06-04 | Dipharma Francis Srl | Procedimento per la preparazione di acido (s)(+)-3-(amminometil)-5-metilesanoico |
| US20100312010A1 (en) * | 2007-12-18 | 2010-12-09 | Watson Pharma Private Limited | Process for the Preparation of (S)-Pregabalin |
| CA2710152A1 (en) * | 2007-12-26 | 2009-07-02 | Generics (Uk) Limited | Processes to pregabalin |
| KR101489267B1 (ko) | 2007-12-27 | 2015-02-04 | 도오레 화인케미칼 가부시키가이샤 | 광학 활성 3-아미노피롤리딘염, 그 제조 방법 및 3-아미노피롤리딘의 광학 분할 방법 |
| US8592625B2 (en) * | 2008-01-02 | 2013-11-26 | Zheinjiang Jiuzhou Pharmaceutical Co., Ltd. | Process for resolving S-3-(aminomethyl)-5-methylhexanoic acid |
| US20110144383A1 (en) * | 2008-02-18 | 2011-06-16 | Matrix Laboratories Limited | Process for preparing (s)-3-(aminomethyl)-5-methylhexanoic acid |
| JP2011516459A (ja) * | 2008-04-04 | 2011-05-26 | ジェネリクス・（ユーケー）・リミテッド | 新規な方法 |
| EP2110372A1 (en) | 2008-04-16 | 2009-10-21 | Chemo Ibérica, S.A. | Intermediates for the preparation of Pregabalin and process for their preparation |
| CN101585778B (zh) * | 2008-05-19 | 2014-08-13 | 上海臣邦医药科技有限公司 | 一种普瑞巴林制备方法 |
| SI2294207T1 (sl) * | 2008-05-21 | 2013-01-31 | Sandoz Ag | Postopek za stereoselektivno encimatsko hidrolizo estra 5-metil-3-nitrometil-heksanojske kisline |
| EP2280930A1 (en) * | 2008-06-03 | 2011-02-09 | Generics [UK] Limited | A novel and efficient method for the synthesis of an amino acid |
| KR20100107500A (ko) * | 2008-06-23 | 2010-10-05 | 테바 파마슈티컬 인더스트리즈 리미티드 | (ｓ) 또는 (ｒ)-이소-부틸-글루타릭 에스테르의 입체선택적 효소 합성방법 |
| WO2010061403A2 (en) * | 2008-11-26 | 2010-06-03 | Ind-Swift Laboratories Limited | Process to prepare highly pure (s)-pregabalin |
| WO2010070593A2 (en) | 2008-12-19 | 2010-06-24 | Pfizer Ireland Pharmaceuticals | Malonate esters |
| IT1394292B1 (it) | 2009-05-07 | 2012-06-06 | Dipharma Francis Srl | Procedimento per la sintesi di pregabalina |
| ES2362913B1 (es) | 2009-12-24 | 2012-05-24 | Moehs Iberica S.L. | Nuevo método para la preparación de (s)-pregabalina. |
| HUP1000186A2 (en) * | 2010-04-08 | 2011-10-28 | Richter Gedeon Nyrt | Novel industrial process of preparing (s)-(+) pregabalin |
| WO2011141923A2 (en) | 2010-05-14 | 2011-11-17 | Lupin Limited | Improved synthesis of optically pure (s) - 3-cyano-5-methyl-hexanoic acid alkyl ester, an intermediate of (s)- pregabalin |
| US8212072B2 (en) | 2010-08-13 | 2012-07-03 | Divi's Laboratories, Ltd. | Process for the preparation of pregabalin |
| WO2012025861A1 (en) | 2010-08-23 | 2012-03-01 | Pfizer Manufacturing Ireland | Process for the preparation of ( s ) - 3 - cyano - 5 - methylhexanoic acid derivatives adn of pregabalin |
| EP2700645A4 (en) | 2011-04-20 | 2014-09-24 | Kemphys Ltd | SILICONE-CONTAINING CARBOXYLENE DERIVATIVE |
| EP2527319A1 (en) | 2011-05-24 | 2012-11-28 | Laboratorios Del. Dr. Esteve, S.A. | Crystalline forms of pregabalin and co-formers in the treatment of pain |
| JP5572783B1 (ja) | 2012-10-18 | 2014-08-13 | 有限会社ケムフィズ | ケイ素含有カルボン酸誘導体 |
| JP6482465B2 (ja) | 2012-11-07 | 2019-03-13 | ハイカル リミテッド | プレガバリンの調製方法 |
| CN103980144B (zh) * | 2014-05-16 | 2018-08-17 | 浙江华海药业股份有限公司 | 一种普瑞巴林中间体母液的套用方法 |
| EP3154930B1 (en) | 2014-06-12 | 2018-04-18 | Siegfried Ltd. | Method for the preparation of beta-substituted gamma-amino carboxylic acids |
| CN104086439B (zh) * | 2014-06-30 | 2018-11-16 | 浙江华海药业股份有限公司 | 一种pregabalin中间体拆分剂(R)-(+)-α-苯乙胺的回收方法 |
| WO2016075082A1 (en) | 2014-11-10 | 2016-05-19 | Sandoz Ag | Stereoselective reductive amination of alpha-chiral aldehydes using omega-transaminases for the synthesis of precursors of pregabalin and brivaracetam |
| CN104649919B (zh) * | 2015-02-10 | 2021-02-12 | 浙江华海药业股份有限公司 | 一种小颗粒普瑞巴林的制备方法 |
| CN107920987A (zh) | 2015-05-26 | 2018-04-17 | 艾萨·欧蒂迪 | 控制延缓释放普瑞巴林 |
| CN105175276A (zh) * | 2015-07-25 | 2015-12-23 | 安徽东凯生物科技有限公司 | 一种光学纯(r)-3-氨甲酰甲基-5-甲基己酸的合成方法 |
| CN105085290A (zh) * | 2015-08-18 | 2015-11-25 | 太仓运通生物化工有限公司 | 一种合成普瑞巴林的方法 |
| CN105061234A (zh) * | 2015-08-18 | 2015-11-18 | 太仓运通生物化工有限公司 | 一种制备普瑞巴林的方法 |
| CN105348125A (zh) * | 2015-11-26 | 2016-02-24 | 太仓运通生物化工有限公司 | 一种以异戊醛为原料合成普瑞巴林的方法 |
| CN111333529A (zh) * | 2018-12-19 | 2020-06-26 | 北京万全德众医药生物技术有限公司 | 普瑞巴林的一种制备方法 |
| CN109942446B (zh) * | 2019-04-17 | 2021-09-07 | 黄冈鲁班药业股份有限公司 | 一种普瑞巴林的制备方法 |
| EP4230199A4 (en) | 2020-12-04 | 2024-07-31 | Laboratorios Silanes, S.A. de C.V. | COATED AND STABLE SOLID PHARMACEUTICAL COMPOSITION OF AN ANALGESIC AND AN ANTIEPILEPTIC AGAINST PAIN |
| CN112939809A (zh) * | 2020-12-30 | 2021-06-11 | 江苏恒沛药物科技有限公司 | 一种1-氰基-3-甲基丁基丙二酸二乙酯的制备方法 |
| CN116041214B (zh) * | 2022-11-15 | 2025-04-22 | 奥锐特药业股份有限公司 | 一种普瑞巴林中间体的制备方法及其应用 |
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| US2516307A (en) * | 1949-01-06 | 1950-07-25 | Gen Mills Inc | Vinyl resins plasticized with cyano esters |
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| US3444161A (en) * | 1965-09-02 | 1969-05-13 | Shionogi Seiyaku Kk | Alkyl cyano aluminum compounds and process for introducing a cyano group into an alpha,beta unsaturated carbonyl compound |
| DE1793347A1 (de) * | 1968-09-04 | 1972-02-03 | Dynamit Nobel Ag | Verfahren zur Herstellung von substituierten Cyanbuttersaeuren |
| JPS54100316A (en) * | 1978-01-25 | 1979-08-08 | Meiji Seika Kaisha Ltd | Preparation of derivative of aminobutyric acid |
| US4428887A (en) * | 1982-07-14 | 1984-01-31 | Monsanto Company | Method of producing mono-substituted terminal diesters |
| DE3227388A1 (de) * | 1982-07-22 | 1984-01-26 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von (alpha)-substituierten ss-dicarbonyl-, ss-cyancarbonyl- und ss-dicyanverbindungen |
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-
1995
- 1995-06-07 US US08/474,874 patent/US5637767A/en not_active Expired - Lifetime
-
1996
- 1996-05-13 EE EE9700320A patent/EE04053B1/xx unknown
- 1996-05-13 AT AT96914618T patent/ATE210628T1/de active
- 1996-05-13 HU HU9802504A patent/HU228194B1/hu unknown
- 1996-05-13 CZ CZ20010732A patent/CZ296895B6/cs not_active IP Right Cessation
- 1996-05-13 GE GEAP19964087A patent/GEP19991870B/en unknown
- 1996-05-13 PL PL96350439A patent/PL185560B1/pl unknown
- 1996-05-13 EP EP96914618A patent/EP0830338B1/en not_active Expired - Lifetime
- 1996-05-13 ES ES96914618T patent/ES2170231T3/es not_active Expired - Lifetime
- 1996-05-13 PL PL96323795A patent/PL185425B1/pl unknown
- 1996-05-13 SK SK606-2002A patent/SK283507B6/sk not_active IP Right Cessation
- 1996-05-13 CZ CZ19973846A patent/CZ291147B6/cs not_active IP Right Cessation
- 1996-05-13 NZ NZ308319A patent/NZ308319A/en not_active IP Right Cessation
- 1996-05-13 SI SI9630390T patent/SI0830338T1/xx unknown
- 1996-05-13 CA CA002219150A patent/CA2219150C/en not_active Expired - Lifetime
- 1996-05-13 DK DK96914618T patent/DK0830338T3/da active
- 1996-05-13 PT PT96914618T patent/PT830338E/pt unknown
- 1996-05-13 HU HU0500934A patent/HU229957B1/hu unknown
- 1996-05-13 SK SK1645-97A patent/SK282865B6/sk not_active IP Right Cessation
- 1996-05-13 JP JP50055997A patent/JP3874306B2/ja not_active Expired - Lifetime
- 1996-05-13 NZ NZ501628A patent/NZ501628A/en not_active IP Right Cessation
- 1996-05-13 WO PCT/US1996/006819 patent/WO1996040617A1/en not_active Ceased
- 1996-05-13 PL PL96350438A patent/PL185557B1/pl unknown
- 1996-05-13 DE DE69617948T patent/DE69617948T2/de not_active Expired - Lifetime
-
1997
- 1997-02-06 US US08/796,159 patent/US5840956A/en not_active Expired - Lifetime
-
1998
- 1998-08-26 US US09/140,163 patent/US6046353A/en not_active Expired - Lifetime
-
1999
- 1999-10-05 US US09/412,258 patent/US20010016665A1/en not_active Abandoned
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| Date | Code | Title | Description |
|---|---|---|---|
| PSEA | Patent sealed | ||
| RENW | Renewal (renewal fees accepted) | ||
| RENW | Renewal (renewal fees accepted) | ||
| RENW | Renewal (renewal fees accepted) | ||
| RENW | Renewal (renewal fees accepted) | ||
| EXPY | Patent expired |