NO301422B1 - Fremgangsmåte for fremstilling av (6S)- og (6R)-tetrahydrofolsyre - Google Patents
Fremgangsmåte for fremstilling av (6S)- og (6R)-tetrahydrofolsyre Download PDFInfo
- Publication number
- NO301422B1 NO301422B1 NO920197A NO920197A NO301422B1 NO 301422 B1 NO301422 B1 NO 301422B1 NO 920197 A NO920197 A NO 920197A NO 920197 A NO920197 A NO 920197A NO 301422 B1 NO301422 B1 NO 301422B1
- Authority
- NO
- Norway
- Prior art keywords
- acid
- tetrahydrofolic
- tetrahydrofolic acid
- water
- addition salt
- Prior art date
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- MSTNYGQPCMXVAQ-RYUDHWBXSA-N (6S)-5,6,7,8-tetrahydrofolic acid Chemical compound C([C@H]1CNC=2N=C(NC(=O)C=2N1)N)NC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 MSTNYGQPCMXVAQ-RYUDHWBXSA-N 0.000 title claims abstract description 42
- MSTNYGQPCMXVAQ-NEPJUHHUSA-N 6R-Tetrahydrofolic acid Chemical compound C([C@@H]1CNC=2N=C(NC(=O)C=2N1)N)NC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 MSTNYGQPCMXVAQ-NEPJUHHUSA-N 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 5
- 150000003839 salts Chemical class 0.000 claims abstract description 61
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000002253 acid Substances 0.000 claims abstract description 23
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 150000007513 acids Chemical class 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000007858 starting material Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 26
- 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 21
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 16
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims description 13
- 229940092714 benzenesulfonic acid Drugs 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 6
- ZINDIVNSAGENPY-FXMYHANSSA-N (2s)-2-[[4-[[(6s)-2-amino-4-oxo-5,6,7,8-tetrahydro-1h-pteridin-6-yl]methylamino]benzoyl]amino]pentanedioic acid;4-methylbenzenesulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1.C([C@H]1CNC=2N=C(NC(=O)C=2N1)N)NC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 ZINDIVNSAGENPY-FXMYHANSSA-N 0.000 claims description 5
- VVIAGPKUTFNRDU-ABLWVSNPSA-N folinic acid Chemical compound C1NC=2NC(N)=NC(=O)C=2N(C=O)C1CNC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 VVIAGPKUTFNRDU-ABLWVSNPSA-N 0.000 claims description 5
- QYNUQALWYRSVHF-OLZOCXBDSA-N (6R)-5,10-methylenetetrahydrofolic acid Chemical compound C([C@H]1CNC=2N=C(NC(=O)C=2N1C1)N)N1C1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 QYNUQALWYRSVHF-OLZOCXBDSA-N 0.000 claims description 4
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 claims description 4
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 239000004310 lactic acid Substances 0.000 claims description 3
- 235000014655 lactic acid Nutrition 0.000 claims description 3
- SGUBKELXCDHQHX-FXMYHANSSA-N (2s)-2-[[4-[[(6s)-2-amino-4-oxo-5,6,7,8-tetrahydro-1h-pteridin-6-yl]methylamino]benzoyl]amino]pentanedioic acid;sulfuric acid Chemical compound OS(O)(=O)=O.C([C@H]1CNC=2N=C(NC(=O)C=2N1)N)NC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 SGUBKELXCDHQHX-FXMYHANSSA-N 0.000 claims description 2
- 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
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 2
- RAFKAKSKKRLEJW-FXMYHANSSA-N OS(=O)(=O)C1=CC=CC=C1.C([C@H]1CNC=2N=C(NC(=O)C=2N1)N)NC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 Chemical compound OS(=O)(=O)C1=CC=CC=C1.C([C@H]1CNC=2N=C(NC(=O)C=2N1)N)NC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 RAFKAKSKKRLEJW-FXMYHANSSA-N 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- CCIVGXIOQKPBKL-UHFFFAOYSA-M ethanesulfonate Chemical compound CCS([O-])(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-M 0.000 claims description 2
- ZNOVTXRBGFNYRX-ABLWVSNPSA-N levomefolic acid Chemical compound C1NC=2NC(N)=NC(=O)C=2N(C)C1CNC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 ZNOVTXRBGFNYRX-ABLWVSNPSA-N 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229940098779 methanesulfonic acid Drugs 0.000 claims description 2
- NIXKBAZVOQAHGC-UHFFFAOYSA-N phenylmethanesulfonic acid Chemical compound OS(=O)(=O)CC1=CC=CC=C1 NIXKBAZVOQAHGC-UHFFFAOYSA-N 0.000 claims description 2
- 150000003460 sulfonic acids Chemical class 0.000 claims description 2
- 229940126601 medicinal product Drugs 0.000 claims 2
- XTEGVFVZDVNBPF-UHFFFAOYSA-N naphthalene-1,5-disulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1S(O)(=O)=O XTEGVFVZDVNBPF-UHFFFAOYSA-N 0.000 claims 2
- ZINDIVNSAGENPY-LYCTWNKOSA-N (2S)-2-[[4-[[(6R)-2-amino-4-oxo-5,6,7,8-tetrahydro-3H-pteridin-6-yl]methylamino]benzoyl]amino]pentanedioic acid 4-methylbenzenesulfonic acid Chemical compound C1(=CC=C(C=C1)S(=O)(=O)O)C.C(CC[C@@H](C(=O)O)NC(=O)C1=CC=C(NC[C@@H]2CNC=3N=C(N)NC(=O)C3N2)C=C1)(=O)O ZINDIVNSAGENPY-LYCTWNKOSA-N 0.000 claims 1
- RAFKAKSKKRLEJW-LYCTWNKOSA-N (2S)-2-[[4-[[(6R)-2-amino-4-oxo-5,6,7,8-tetrahydro-3H-pteridin-6-yl]methylamino]benzoyl]amino]pentanedioic acid benzenesulfonic acid Chemical compound C1(=CC=CC=C1)S(=O)(=O)O.C(CC[C@@H](C(=O)O)NC(=O)C1=CC=C(NC[C@@H]2CNC=3N=C(N)NC(=O)C3N2)C=C1)(=O)O RAFKAKSKKRLEJW-LYCTWNKOSA-N 0.000 claims 1
- 229940105150 5-methyltetrahydrofolic acid Drugs 0.000 claims 1
- SGUBKELXCDHQHX-LYCTWNKOSA-N OS(O)(=O)=O.C([C@@H]1CNC=2N=C(NC(=O)C=2N1)N)NC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 Chemical compound OS(O)(=O)=O.C([C@@H]1CNC=2N=C(NC(=O)C=2N1)N)NC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 SGUBKELXCDHQHX-LYCTWNKOSA-N 0.000 claims 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims 1
- KVBGVZZKJNLNJU-UHFFFAOYSA-N naphthalene-2-sulfonic acid Chemical compound C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-N 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 3
- QYNUQALWYRSVHF-ABLWVSNPSA-N 5,10-methylenetetrahydrofolic acid Chemical class C1N2C=3C(=O)NC(N)=NC=3NCC2CN1C1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 QYNUQALWYRSVHF-ABLWVSNPSA-N 0.000 abstract description 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 3
- 239000001117 sulphuric acid Substances 0.000 abstract 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 30
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 24
- 238000004128 high performance liquid chromatography Methods 0.000 description 24
- 239000000047 product Substances 0.000 description 23
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 21
- MSTNYGQPCMXVAQ-KIYNQFGBSA-N 5,6,7,8-tetrahydrofolic acid Chemical class N1C=2C(=O)NC(N)=NC=2NCC1CNC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 MSTNYGQPCMXVAQ-KIYNQFGBSA-N 0.000 description 18
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- OVBPIULPVIDEAO-LBPRGKRZSA-N folic acid Chemical compound C=1N=C2NC(N)=NC(=O)C2=NC=1CNC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 OVBPIULPVIDEAO-LBPRGKRZSA-N 0.000 description 16
- 239000000243 solution Substances 0.000 description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
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- 238000001212 derivatisation Methods 0.000 description 1
- 125000003963 dichloro group Chemical group Cl* 0.000 description 1
- 229960005215 dichloroacetic acid Drugs 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- UVCJGUGAGLDPAA-UHFFFAOYSA-N ensulizole Chemical compound N1C2=CC(S(=O)(=O)O)=CC=C2N=C1C1=CC=CC=C1 UVCJGUGAGLDPAA-UHFFFAOYSA-N 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethyl mercaptane Natural products CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229960002949 fluorouracil Drugs 0.000 description 1
- 239000004052 folic acid antagonist Substances 0.000 description 1
- 150000002224 folic acids Chemical class 0.000 description 1
- 125000000291 glutamic acid group Chemical group N[C@@H](CCC(O)=O)C(=O)* 0.000 description 1
- 238000007172 homogeneous catalysis Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229960000485 methotrexate Drugs 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 229930027945 nicotinamide-adenine dinucleotide Natural products 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- IZJVVXCHJIQVOL-UHFFFAOYSA-N nitro(phenyl)methanesulfonic acid Chemical compound OS(=O)(=O)C([N+]([O-])=O)C1=CC=CC=C1 IZJVVXCHJIQVOL-UHFFFAOYSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 125000001747 pteroyl group Chemical group [H]C1=C([H])C(C(=O)[*])=C([H])C([H])=C1N([H])C([H])([H])C1=C([H])N=C2N([H])C(N([H])[H])=NC(=O)C2=N1 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 1
- 206010039073 rheumatoid arthritis Diseases 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- UQDJGEHQDNVPGU-UHFFFAOYSA-N serine phosphoethanolamine Chemical compound [NH3+]CCOP([O-])(=O)OCC([NH3+])C([O-])=O UQDJGEHQDNVPGU-UHFFFAOYSA-N 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- VLKFYBLZIAZYPW-LYCTWNKOSA-M sodium (4S)-4-[[4-[[(6R)-2-amino-4-oxo-5,6,7,8-tetrahydro-3H-pteridin-6-yl]methylamino]benzoyl]amino]-5-hydroxy-5-oxopentanoate Chemical compound [Na+].C(CC[C@@H](C(=O)O)NC(=O)C1=CC=C(NC[C@@H]2CNC=3N=C(N)NC(=O)C=3N2)C=C1)(=O)[O-] VLKFYBLZIAZYPW-LYCTWNKOSA-M 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D475/00—Heterocyclic compounds containing pteridine ring systems
- C07D475/02—Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4
- C07D475/04—Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4 with a nitrogen atom directly attached in position 2
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D475/00—Heterocyclic compounds containing pteridine ring systems
- C07D475/06—Heterocyclic compounds containing pteridine ring systems with a nitrogen atom directly attached in position 4
- C07D475/08—Heterocyclic compounds containing pteridine ring systems with a nitrogen atom directly attached in position 4 with a nitrogen atom directly attached in position 2
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH108/91A CH681303A5 (es) | 1991-01-16 | 1991-01-16 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO920197D0 NO920197D0 (no) | 1992-01-15 |
| NO920197L NO920197L (no) | 1992-07-17 |
| NO301422B1 true NO301422B1 (no) | 1997-10-27 |
Family
ID=4179454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO920197A NO301422B1 (no) | 1991-01-16 | 1992-01-15 | Fremgangsmåte for fremstilling av (6S)- og (6R)-tetrahydrofolsyre |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US5324836A (es) |
| EP (1) | EP0495204B1 (es) |
| JP (1) | JPH0739417B2 (es) |
| KR (1) | KR100207133B1 (es) |
| CN (1) | CN1030079C (es) |
| AT (1) | ATE123777T1 (es) |
| AU (1) | AU654993B2 (es) |
| CA (1) | CA2059103C (es) |
| CH (1) | CH681303A5 (es) |
| DE (1) | DE59105722D1 (es) |
| DK (1) | DK0495204T3 (es) |
| ES (1) | ES2075315T3 (es) |
| FI (1) | FI109906B (es) |
| GE (1) | GEP19971019B (es) |
| HU (1) | HU207083B (es) |
| IE (1) | IE72164B1 (es) |
| IL (1) | IL100478A (es) |
| LV (1) | LV10083B (es) |
| MX (1) | MX9200063A (es) |
| NO (1) | NO301422B1 (es) |
| NZ (1) | NZ241245A (es) |
| PT (1) | PT100014B (es) |
| RU (1) | RU2099340C1 (es) |
| TW (1) | TW198033B (es) |
| ZA (1) | ZA92291B (es) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH682664A5 (en) * | 1991-10-15 | 1993-10-29 | Eprova Ag | Stable salts of 5,10-methylene tetrahydrofolate. |
| DE4136921A1 (de) * | 1991-11-11 | 1993-05-13 | Knoll Ag | Verfahren zur trennung von 5-methyl-tetrahydrofolsaeure |
| CH683262A5 (it) * | 1992-01-22 | 1994-02-15 | Applied Pharma Res | Procedimento per la separazione dei diastereomeri del sale di calcio dell'acido (6(R,S)-N-formiltetraidrofolico). |
| IT1254635B (it) * | 1992-02-20 | 1995-09-28 | Bracco Spa | Processo per la separazione degli stereoisomeri dell'acido folinico |
| CH684644A5 (de) * | 1992-07-13 | 1994-11-15 | Eprova Ag | 5,10-Methylentetrahydrofolsäure-Cyclodextrin-Einschlussverbindungen. |
| CH686672A5 (de) * | 1992-12-01 | 1996-05-31 | Cerbios Pharma Sa | Verfahren zur Herstellung von (6S)-5,6,7,8-Tetrahydrofolsaeure. |
| CH686369A5 (de) * | 1994-05-09 | 1996-03-15 | Eprova Ag | Stabile kristalline (6S)- und (6R)-Tetrahydrofolseure. |
| CH689831A5 (de) * | 1995-11-07 | 1999-12-15 | Eprova Ag | Stabile kristalline Tetrahydrofolsaeure-Salze. |
| CH693905A5 (de) | 1999-04-15 | 2004-04-15 | Eprova Ag | Stabile kristalline Salze von 5-Methyltetrahydrofolsäure. |
| CH694251A5 (de) * | 1999-07-14 | 2004-10-15 | Eprova Ag | Herstellung von Tetrahydropterin und Derivaten. |
| CH695217A5 (de) * | 1999-07-14 | 2006-01-31 | Merck Eprova Ag | Verfahren zur Trennung optischer Isomeren von Tetrahydrofolsäureestersalzen und Tetrahydrofolsäure. |
| EP1362348B1 (en) | 2001-01-16 | 2011-11-09 | GR Intellectual Reserve, LLC | Enhanced data storage and retrieval devices and systems and methods for utilizing the same |
| ITMI20020132A1 (it) | 2002-01-25 | 2003-07-25 | Gmt Fine Chemicals Sa | Processo per l'ottenimento dell'acido (6s)-5,6,7,8-tetraidrofolico |
| US7408729B2 (en) | 2002-11-21 | 2008-08-05 | Gr Intellectual Reserve, Llc | Enhanced data storage and retrieval devices and systems and methods for utilizing same |
| CH696717A5 (de) * | 2004-02-20 | 2007-10-31 | Cerbios Pharma Sa | Konzentrierte, stabile Losung, insbesondere eine Injektionslosung oder Infusionslosung, welche nebst Wasser entweder (6S)-Natrium-Folinat oder (6S)-Kalium-Folinat entholt |
| CH698729B1 (de) | 2007-05-30 | 2009-10-15 | Cerbios Pharma Sa | Stabile, kristalline (6S)-N(5)-Methyl-5, 6,7,8-tetrahydrofolsäure. |
| CN101407518A (zh) * | 2007-10-11 | 2009-04-15 | 南京莱尔生物化工有限公司 | (6r,s)-5-甲酰-四氢叶酸的拆分及其成盐的方法 |
| CN104334561B (zh) | 2012-04-13 | 2016-06-22 | 连云港金康和信药业有限公司 | 化合物jk12a及其制备 |
| CN104045640B (zh) * | 2013-03-14 | 2016-04-06 | 天津康鸿医药科技发展有限公司 | 一种制备高纯度左亚叶酸钙的方法 |
| CN104774169B (zh) * | 2014-01-15 | 2017-02-15 | 上海韶远试剂有限公司 | 一种利用非手性助剂进行非对映异构体拆分的新方法 |
| CN108164531B (zh) * | 2018-02-12 | 2019-11-05 | 江苏红豆杉药业有限公司 | 一种l-5-甲基四氢叶酸钙的制备方法 |
| ES2966938T3 (es) | 2018-07-06 | 2024-04-25 | Merck Patent Gmbh | Sal cristalina de ácido 5-metil-(6S)-tetrahidrofólico y éster etílico de L-isoleucina |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3468886A (en) * | 1967-10-23 | 1969-09-23 | Us Health Education & Welfare | Tetrahydrohomofolic acid sulfate and synthesis thereof |
| DE2063027A1 (de) * | 1969-12-26 | 1971-07-01 | Yamanouchi Pharmaceutical Co Ltd , Tokio | Salz einer basischen Aminosäure der 5 6,7,8 Tetrahydrofolsaure |
| JPS4832120A (es) * | 1971-08-31 | 1973-04-27 | ||
| US4665176A (en) * | 1984-10-23 | 1987-05-12 | Mitsui Toatsu Chemicals, Incorporated | Process for the preparation of 5,6,7,8-tetrahydrofolic acid |
| GB8621268D0 (en) * | 1986-09-03 | 1986-10-08 | Univ Strathclyde | Separation of substances |
| CH673459A5 (es) * | 1987-05-15 | 1990-03-15 | Eprova Ag | |
| DE3821875C1 (es) * | 1988-06-29 | 1990-02-15 | Eprova Ag, Forschungsinstitut, Schaffhausen, Ch | |
| JPH0265787A (ja) * | 1988-08-30 | 1990-03-06 | Kyowa Hakko Kogyo Co Ltd | Ｌ（‐）‐テトラヒドロ葉酸の製造法 |
| CH676981A5 (es) * | 1988-11-11 | 1991-03-28 | Eprova Ag | |
| FR2643081B1 (fr) * | 1989-02-14 | 1991-06-07 | Panmedica Sa | Folates de magnesium, procede de preparation et compositions pharmaceutiques |
| US5173488A (en) * | 1989-08-21 | 1992-12-22 | American Cyanamid Company | Stable injectable pharmaceutical formulation for folic acid and leucovorin salts and method |
| EP0432441B1 (en) * | 1989-12-11 | 1996-06-26 | American Cyanamid Company | Process for the preparation of optically pure diastereoisomers of tetrahydrofolate compounds |
| CH680731A5 (es) * | 1990-04-12 | 1992-10-30 | Sapec Fine Chemicals |
-
1991
- 1991-01-16 CH CH108/91A patent/CH681303A5/de not_active IP Right Cessation
- 1991-11-27 TW TW080109353A patent/TW198033B/zh active
- 1991-12-06 RU SU915010253A patent/RU2099340C1/ru not_active IP Right Cessation
- 1991-12-12 ES ES91121326T patent/ES2075315T3/es not_active Expired - Lifetime
- 1991-12-12 AT AT91121326T patent/ATE123777T1/de not_active IP Right Cessation
- 1991-12-12 DK DK91121326.2T patent/DK0495204T3/da not_active Application Discontinuation
- 1991-12-12 DE DE59105722T patent/DE59105722D1/de not_active Expired - Lifetime
- 1991-12-12 EP EP91121326A patent/EP0495204B1/de not_active Expired - Lifetime
- 1991-12-23 IL IL10047891A patent/IL100478A/en not_active IP Right Cessation
-
1992
- 1992-01-08 MX MX9200063A patent/MX9200063A/es unknown
- 1992-01-08 NZ NZ241245A patent/NZ241245A/en not_active IP Right Cessation
- 1992-01-09 CA CA002059103A patent/CA2059103C/en not_active Expired - Lifetime
- 1992-01-10 KR KR1019920000260A patent/KR100207133B1/ko not_active IP Right Cessation
- 1992-01-14 JP JP4005095A patent/JPH0739417B2/ja not_active Expired - Lifetime
- 1992-01-15 PT PT100014A patent/PT100014B/pt not_active IP Right Cessation
- 1992-01-15 NO NO920197A patent/NO301422B1/no not_active IP Right Cessation
- 1992-01-15 FI FI920180A patent/FI109906B/fi active
- 1992-01-15 ZA ZA92291A patent/ZA92291B/xx unknown
- 1992-01-15 HU HU9200134A patent/HU207083B/hu not_active IP Right Cessation
- 1992-01-15 CN CN92100247A patent/CN1030079C/zh not_active Expired - Lifetime
- 1992-01-15 IE IE920112A patent/IE72164B1/en not_active IP Right Cessation
- 1992-01-15 AU AU10254/92A patent/AU654993B2/en not_active Ceased
-
1993
- 1993-04-02 LV LVP-93-220A patent/LV10083B/lv unknown
- 1993-04-08 US US08/044,886 patent/US5324836A/en not_active Expired - Lifetime
- 1993-07-14 GE GEAP19931024A patent/GEP19971019B/en unknown
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |
Free format text: LAPSED IN JULY 2002 |