| Patents for C07D 475 - Heterocyclic compounds containing pteridine ring systems (2,718) |
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| 04/07/1992 | US5103005 Method for recovery of riboflavin |
| 04/07/1992 | US5102443 Heterocyclically substituted phenoxysulfonylureas, and the use thereof as herbicides or plant growth regulators |
| 03/25/1992 | CN1059725A Methylamino pterin derivatives |
| 03/05/1992 | WO1992003436A1 Novel methotrexate derivative |
| 02/26/1992 | EP0471820A1 Diastereoisomeric compounds derived from tetrahydrofolic acid, process for their preparation and use in the synthesis of diastereoisomers 6s and 6r of reduced folates |
| 02/26/1992 | CN1015596B Preparation of riboflavin, produced by microbial method, in form of spray-dried granules of microgranules |
| 02/20/1992 | WO1992002241A1 A process of making tetrahydropteroylpoly-l-glutamic acid derivatives |
| 01/29/1992 | EP0468187A2 Cyclic amide derivatives |
| 01/21/1992 | CA1294548C2 Dehydrated liposomes |
| 01/08/1992 | EP0464582A2 Process for the purification of riboflavin obtained by fermentation |
| 01/08/1992 | CN1057653A Difluoroglutamic acid conjugates with folates and anti-folates for treatment of neoplastic diseases |
| 12/25/1991 | CN1057262A Cyclic amide derivatives |
| 12/18/1991 | EP0461145A1 Magnesium folates, process for their preparation and pharmaceutical compositions |
| 12/17/1991 | US5073554 Two non-polyglutamatable antifolates |
| 11/21/1991 | EP0457075A2 Process for the preparation of dust and binderfree, free flowing spray granulates or microgranulates of riboflavin from pure riboflavin |
| 11/19/1991 | US5066828 Difluoroglutamic acid conjugates with folates and anti-folates for the treatment of neoplastic diseases |
| 11/14/1991 | WO1991013890A3 Diastereoisomeric compounds derived from tetrahydrofolic acid, process for their preparation and use in the synthesis of diastereoisomers 6s and 6r of reduced folates |
| 11/06/1991 | EP0455013A1 Ammoniumsalts of N(5)-methyl-5,6,7,8-tetrahydrofolic acid |
| 11/05/1991 | CA2040862A1 Spray granules or microgranules of pure riboflavin which contain no binder, are non-dusting and free flowing, and the preparation thereof |
| 10/31/1991 | WO1991016330A1 Amethopterin(methotrexate) pro-drugs, intermediate products, a preparation method, and compositions containing them |
| 10/30/1991 | CN1055740A Difluoroglutamic acid conjugates with folates and anti-folates for treatment of neoplastic disease |
| 10/22/1991 | US5059595 Pharmaceutical compositions containing 5-methyltetrahydrofolic acid, 5-formyltetrahydrofolic acid and their pharmaceutically acceptable salts in controlled-release form active in the therapy of organic mental disturbances |
| 10/16/1991 | EP0451836A2 Difluoroglutamic acid conjugates with folates and anti-folates for the treatment of neoplastic diseases |
| 10/16/1991 | EP0451835A1 Intermediates for difluoroglutamic acid conjugates with folates and anti-folates for the treatment of neoplastic diseases |
| 10/13/1991 | CA2040397A1 Ammonium salts of n5-methyl-5,6,7,8-tetrahydrofolic acid |
| 10/13/1991 | CA2040059A1 Difluoroglutamic acid conjugates with folates and anti-folates for the treatment of neoplastic diseases |
| 10/03/1991 | WO1991014433A1 10-deazaaminopterin: a new arthritis remittive drug |
| 10/02/1991 | DE4009941A1 Use of pteridine(s) to sensitise resistant plasmodia - in combination with conventional di:hydro:folate reductase inhibitors and di:hydro-pteroate synthase inhibitors |
| 10/01/1991 | US5053072 Heterocyclic n-acylsulfonamides, and their use as herbicides or growth regulators |
| 09/10/1991 | WO1991013890A2 Diastereoisomeric compounds derived from tetrahydrofolic acid, process for their preparation and use in the synthesis of diastereoisomers 6s and 6r of reduced folates |
| 09/10/1991 | US5047405 Antiamnesic use of pteridine derivatives |
| 09/10/1991 | US5047404 Chemical compounds |
| 09/10/1991 | CA2056433A1 Diastereoisomeric compounds derived from tetra-hydrofolic acid, process for their preparation and use in the synthesis of diastereoisomers 6s and 6r of reduced folates |
| 08/27/1991 | US5043446 Process for the preparation of pterin derivatives |
| 08/27/1991 | CA1288099C Neurologically active pteridine analogues |
| 08/14/1991 | EP0138995B1 Regulation of enzymes which utilize tetrahydrobiopterin or tetrahydrofolate cofactors with 6, 6-disubstituted-tetrahydropteridines |
| 08/07/1991 | CN1053612A Removal of riboflavin fermentation suspensions |
| 08/06/1991 | US5037981 Intermediates for synthesizing BH4 and its derivatives |
| 07/31/1991 | EP0439036A2 Energy transferring system |
| 07/31/1991 | EP0438767A2 Process for the separation of riboflavin from a fermentation suspension |
| 07/26/1991 | CA2033692A1 Energy transfer systems |
| 07/25/1991 | WO1991010666A1 Three new non-polyglutamatable deazaaminopterins and process for preparing the same |
| 07/25/1991 | DE4001238A1 Verfahren zur anreicherung bzw. reinigung von biomolekuelen A method for enrichment or purification of biomolecules |
| 07/23/1991 | US5034393 Fungicidal use of pyridopyrimidine, pteridine, pyrimidopyrimidine, pyrimidopyridazine, and pyrimido-1,2,4-triazine derivatives |
| 07/19/1991 | WO1991010677A1 Process for enriching or cleaning biomolecules |
| 07/19/1991 | CA2067790A1 Process for enriching or cleaning biomolecules |
| 07/09/1991 | US5030634 10-deazaaminopterin: a new arthritis remittive drug |
| 07/09/1991 | US5030270 Sulfonylureas with heterocyclic substituents, and the use thereof as herbicides or plant-growth regulators |
| 07/02/1991 | US5028697 Antitumor agents, cell specific |
| 06/26/1991 | CN1052509A Process for preparation of optically pure diastereoisomers of tetrahydrofolate compounds |
| 06/19/1991 | EP0432441A1 Process for the preparation of optically pure diastereoisomers of tetrahydrofolate compounds |
| 06/11/1991 | US5022916 Substituted sulfonyldiamides, processes for their preparation, and their use as herbicides and plant growth regulators |
| 06/04/1991 | US5021417 Use of a folinic acid substance as a platelet aggregation inhibitor |
| 05/14/1991 | US5015284 Alkyl- and alkenylsulfonylureas which are substituted in the heterocycle, and their use as herbicides or plant growth regulators |
| 04/30/1991 | CA1283604C2 Dehydrated liposomes |
| 04/23/1991 | US5010194 Adding water soluble 1a, 2a, or ammonium compound; filtration, precipitation |
| 04/09/1991 | US5006655 Process for the preparation of tetrahydrofolates |
| 03/26/1991 | US5002944 Inotropic Agents |
| 02/27/1991 | EP0414386A1 Condensed pyrimidine derivates |
| 02/26/1991 | US4996207 Three new non-polyglutamatable deazaaminopterins |
| 02/14/1991 | CA2001458A1 5-methyl-5-deaza-10-propargylaminopterin |
| 01/28/1991 | CA2021925A1 Pyridopyrimidine derivatives |
| 01/23/1991 | EP0409114A1 Heterocyclic substituted sulfonyl ureas, process for their preparation and their use as herbicides or plant growth regulators |
| 01/22/1991 | WO1991001320A1 Method for recovery of riboflavin |
| 01/22/1991 | US4987229 Adsorption of riboflavin on macroreticular polymer |
| 01/22/1991 | CA2064044A1 Method for recovery of riboflavin |
| 01/09/1991 | EP0407342A2 Pyrimidine derivatives |
| 01/07/1991 | CA2020370A1 Pyrimidine derivatives |
| 12/11/1990 | US4977190 Removing water from fermentation discharge in fluidized bed drier |
| 12/04/1990 | US4975433 Aminomethyl derivatives of biologically active substances and enhanced delivery thereof across topical membranes |
| 11/28/1990 | EP0399856A1 Pteridin-4 (3H)-ones, processes for their preparation and medicaments containing them |
| 10/24/1990 | EP0393534A2 Pharmaceutically active pteridine derivatives |
| 10/23/1990 | US4965133 Flavin modified electrode |
| 09/26/1990 | EP0388827A1 Use of 5-methyltetrahydrofolic acid, 5-formyltetrahydrofolic acid and their pharmaceutically acceptable salts in the preparation of pharmaceutical compositions in controlled release form active in the therapy of organic mental disturbances, and the relative pharmaceutical compositions |
| 09/25/1990 | US4959472 Process for preparing substantially pure diastereoisomers of tetrahydrofolic derivatives |
| 09/11/1990 | US4956461 Leukemia, anticarcinogenic agents |
| 09/11/1990 | US4956092 Method for concentrating/dehydrating of sewage sludge |
| 09/05/1990 | EP0385336A2 Processes for the preparation of pterin derivatives |
| 08/22/1990 | EP0383170A2 Methotrexate linked to polymers, process for their preparation, and use |
| 08/16/1990 | EP0382334A2 Microwave method for preparation of serum samples for b-12 and folate assays |
| 08/16/1990 | EP0382019A1 Use of 5-methyltetrahydrofolic acid, of 5-formyl-tetrahydrofolic acid and of their pharmaceutically acceptable salts for the preparation of controlled release pharmaceutical compositions suitable for the use in the therapy of depressive disturbances, and pharmaceutical compositions thus prepared |
| 08/15/1990 | WO1990009382A1 Magnesium folates, process for their preparation and pharmaceutical compositions |
| 08/15/1990 | CA2046341A1 Magnesium folates, process for their preparation and pharmaceutical compositions |
| 08/11/1990 | CA2009695A1 Polymer-bound methotrexate, a process for its preparation and its use |
| 08/09/1990 | CA2008473A1 Microwave method for preparation of serum samples for b-12 and folate assays |
| 08/01/1990 | EP0380264A2 Halogenation process |
| 07/24/1990 | US4943575 Pteridines |
| 07/23/1990 | CA2008079A1 Halogenation process |
| 06/26/1990 | US4937342 Intermediates for synthesizing BH4 and its derivatives |
| 06/20/1990 | EP0373213A1 Utilization of a folinic substance as platelet antiaggregating agent. |
| 06/12/1990 | CA1270198A1 Encapsulation of antineoplastic agents in liposomes |
| 06/12/1990 | CA1270197A1 Dehydrated liposomes |
| 05/30/1990 | CN1042541A Process for resoluting folinic acid |
| 05/16/1990 | EP0367902A2 Process for the separation of folinic acid |
| 05/14/1990 | EP0345308A4 Ornithine derivatives and their use as inhibitors of methotrexate resistant cells. |
| 05/03/1990 | WO1990004593A1 Desamino-aminopterin and -methotrexate |
| 04/24/1990 | US4920122 Tetrahydrobiopterin, 5-hydroxytryptophan and l-dopa mixture |
| 04/19/1990 | CA2000915A1 Desamino-aminopterin and - methotrexate |
| 04/11/1990 | EP0362645A2 Use of pteridines in the prevention of the primary and secondary resistance during chemotherapy, and medicaments containing these compounds |
| 04/04/1990 | EP0361817A2 Nucleophilic polysubstituted aryl acridinium esters, conjugates, production and uses thereof |