| Patents for C07B 57 - Separation of optically-active organic compounds (3,737) |
|---|
| 04/25/1996 | CA2202911A1 Process for separating enantiomers from a racemic mixture |
| 04/23/1996 | US5510530 Optically active sulphur-containing amino acid derivatives |
| 04/23/1996 | US5510520 Reacting optically active bifunctional resolving agent with bifunctional compound to form liquid material, precipitating crystals, separating, treating with acid and/or base, heating liquid, cooling, separating crystals, treating as before |
| 04/23/1996 | US5510519 Optically active secondary amine compound, process for producing optically active secondary amine compound and process for producing optically active carboxylic acid by using said compound |
| 04/17/1996 | EP0706982A1 Method of separating optical isomers |
| 04/03/1996 | EP0703903A1 Enantiomers of 4-(5-fluoro-2,3-dihydro-1h-inden-2-yl)-1h-imidazole |
| 03/28/1996 | WO1996009290A1 Racemisation and asymmetric transformation processes used in the manufacture of levobupivacaine and analogues thereof |
| 03/27/1996 | EP0703229A2 Process for the preparation of (R)-3-amino-5-methoxychroman |
| 03/27/1996 | EP0703212A1 Process for optically resolving 2-(3-benzoylphenyl) propionic acid |
| 03/27/1996 | CA2145822A1 Process for optically resolving 2-(3-benzoylphenyl) propionic acid |
| 03/26/1996 | US5502199 Process for preparing sodium 3R,5S-(+)-erythro-(E)-7- 4-(4-fluorophenyl)-2,6-diisopropyl-5-methoxymethyl-pyrid-3-yl!-3,5-dihydroxy-hept-6-enoate |
| 03/13/1996 | EP0700381A1 Process for the enantioselective synthesis of intermediates used in the preparation of physostigmine |
| 03/13/1996 | EP0516686B1 Separation by carrier mediated transport |
| 03/12/1996 | US5498752 Process for recovering optical isomers and solvent, process for using solvent by circulation and process for reusing optical isomers in optical resolution |
| 03/06/1996 | EP0530336B1 Chiral phosphines |
| 03/05/1996 | US5496937 Polysaccharide substances, process for producing them and use of them |
| 02/27/1996 | US5495012 Process for preparing optically active 4-mercapto-2-pyrrolidone derivative and intermediate therefor |
| 02/27/1996 | US5494915 Isoindolinone derivative, preparation thereof, and pharmaceutical compositions containing same |
| 02/21/1996 | EP0697404A1 New enantiomerically pure pyridyl cycloalkylethyl amines and their salts as well as process for their production |
| 02/14/1996 | EP0532664B1 Supported chiral liquid membrane for the separation of enantiomers |
| 02/13/1996 | US5491260 Acylating carnitine nitrile or amide, hydrolyzing under acid conditions, lactonizing by treating with base, converting to carnitine by treating with base |
| 02/13/1996 | US5491223 Polysaccharide derivative and separating agent |
| 02/07/1996 | EP0672029A4 SELECTIVE PRECIPITATION OF -g(a)-ARYL CARBOXYLIC ACID SALTS. |
| 02/06/1996 | US5489684 Acidification of the racemic alkali salt mixture with a non-oxidizing acid while stereospecific crystallization |
| 02/06/1996 | CA1338034C Process for the optical resolution of a racemic acid |
| 02/01/1996 | WO1996002535A1 Process for synthesis of substituted sulphoxides |
| 01/30/1996 | US5488172 Chiral phosphorus compounds |
| 01/25/1996 | WO1996001995A1 Separating agent |
| 01/17/1996 | EP0692484A1 Benzothiadiazine derivative process for its preparation and pharmaceutical compositions containing it |
| 01/16/1996 | US5484530 Separation of enantiomers of non-steroidal anti-inflammatory drugs and chiral selector therefor |
| 01/02/1996 | US5481026 Addition polymerizable to chromatographic supports for separation of racemic mixtures |
| 01/02/1996 | US5481008 Process for the preparation of optically active compounds |
| 12/27/1995 | EP0688760A1 Addition salts of acyl-amino acids and alpha-aryl-amines and process for the optical resolution of alpha-arylamines |
| 12/26/1995 | US5478958 Methyldioxolan |
| 12/26/1995 | US5478954 Recrystallizing mixture of two enantiomers in an organic solvent mixture comprising aliphatic and aromatic hydrocarbons, halogenated aliphatic and aromatic hydrocarbons, ethers. esters, and amides |
| 12/22/1995 | CA2148172A1 Addition salt of acyl-amino acid and .alpha.-aryl amine and process for optical resolution of .alpha.-arylamine |
| 12/20/1995 | EP0687264A1 Method for preparing n-methyl 2-(3-pyridyl) (1r,2r)-2-tetrahydrothiopyrancarbothioamide-1-oxide |
| 12/14/1995 | WO1995033749A1 A process for the preparation and separation of diastereomeric salts of folinic acid |
| 12/05/1995 | US5473075 Diastereomer salt of optically active quinolinemevalonic acid |
| 12/05/1995 | US5472599 Optical resolution of isomers |
| 11/30/1995 | WO1995032178A1 Enantioselective preparation of optically pure albuterol |
| 11/29/1995 | EP0570443B1 Aminoalcohols useful as optical resolving agents |
| 11/28/1995 | CA1337659C Optical isomers of an imidazole derivative |
| 11/23/1995 | WO1995031436A1 PROCESS AND DIASTEREOMERIC SALTS USEFUL FOR THE OPTICAL RESOLUTION OF RACEMIC α-[4-(1,1-DIMETHYLETHYL)PHENYL]-4-(HYDROXYDIPHENYLMETHYL)-1-PIPERIDINEBUTANOL AND DERIVATIVE COMPOUNDS |
| 11/23/1995 | WO1995031420A1 Separating agent for optical isomers |
| 11/15/1995 | EP0682267A1 Nmr chiral shift reagent comprising sugar derivative |
| 11/02/1995 | WO1995029142A1 Method of separating optical isomers |
| 11/01/1995 | CN1111057A Optical isomer separating agent and process for producing the same |
| 11/01/1995 | CN1030195C Hypoglycemic thiazolidinediones and intermediates |
| 10/25/1995 | EP0598765B1 2-aminonaphthyridine derivative, its preparation and use |
| 10/24/1995 | US5461175 Method for separating enantiomers of aryloxipropanolamine derivatives, and chiral solid-phase chromatography material for use in the method |
| 10/18/1995 | CN1030079C Process for preparation of (6S)-and (6R)-tetrahydrofolic acid |
| 10/12/1995 | WO1995026950A1 Substituted phenyl compounds and processes for preparing the same |
| 10/10/1995 | US5457224 Separating the racemic mixture by reacting with optical active dibenzoyltartaric acid or ditoluoyltartaric acid in a water mixture of methanol or acetone and inorganic acid, crystallization |
| 10/10/1995 | US5457212 Resolution of a thienopyran derivative using methylbenzyl isocyanate; nitration |
| 10/10/1995 | US5457202 Adding N-ethyl-2-aminomethylpyrrolidine to a racemic mixture to form a precipitating salt; heating to dissolve one stereoisomer |
| 10/10/1995 | US5456825 Simulated moving bed separation system |
| 09/20/1995 | EP0672030A1 Process for preparing substantially pure enantiomers of phenylpropionic acids. |
| 09/20/1995 | EP0672029A1 SELECTIVE PRECIPITATION OF $g(a)-ARYL CARBOXYLIC ACID SALTS |
| 09/20/1995 | EP0671975A1 Chiral adsorbents and preparation thereof as well as compounds on which the adsorbents are based and preparation of these compounds |
| 09/20/1995 | CN1108655A 1,3-oxathiolane nucleoside analogues |
| 09/12/1995 | US5449778 Peptide intermediates |
| 09/12/1995 | US5449728 Optically active acetylene polymer, membrane thereof and optical resolution method using the same |
| 09/08/1995 | WO1995023805A1 Process for preparing [l]- or [d]-homoalanin-4-yl-(methyl)phosphinic acid and its salts by racemic resolution |
| 09/08/1995 | CA2184718A1 Process for preparing [l]- or [d]-homoalanin-4-yl-(methyl)phosphinic acid and its salts by racemic resolution |
| 09/07/1995 | DE4407197A1 Verfahren zur Herstellung von /L/-Homoalanin-4-yl-(methyl)phosphinsäure und deren Salze durch Racematspaltung A process for preparing / L / -homoalanin-4-yl (methyl) phosphinic acid and salts thereof by racemate resolution |
| 09/06/1995 | EP0625153B1 Isoindolinone derivative, preparation thereof, and pharmaceutical compositions containing same |
| 09/06/1995 | EP0478721B1 New benzocycloalkene carboxylic acid and process for producing it |
| 08/30/1995 | EP0668861A1 Process for preparing enantiomerically pure 6- (4-chlorophenyl)(1h --triazol-1,2,4-triazol-1-yl)methyl]-1-methyl-1h --benzotriazole |
| 08/29/1995 | US5445963 Alcohol-ester separation by recrystallization |
| 08/24/1995 | WO1995022521A1 Aminoalkylcyclopropane derivative |
| 08/24/1995 | WO1995022390A1 Macrocyclic antibiotics as separation agents |
| 08/23/1995 | EP0667852A1 Novel 3,3-diphenylpropylamines, their use and preparation |
| 08/09/1995 | EP0363428B1 Conversion of pyrethroid isomers to more active species |
| 08/08/1995 | US5439979 Separating materials |
| 08/03/1995 | WO1995020590A1 Enantioselective receptors for amino acid derivatives, and other compounds |
| 08/02/1995 | EP0664784A1 Enantiomeric resolution. |
| 08/02/1995 | EP0664783A1 Enantiomeric resolution |
| 08/02/1995 | EP0664782A1 Enantiomeric resolution |
| 08/02/1995 | EP0664781A1 Enantiomeric resolution |
| 08/02/1995 | CN1106002A Hydrogenation process |
| 07/26/1995 | EP0663897A1 Process for separating enantiomers from a racemic mixture. |
| 07/25/1995 | US5435919 Optically-active, amhiphilic, water-soluble free-radical addition copolymers and their use in the resolution of racemic mixtures |
| 07/18/1995 | US5434299 Process for recovering optical isomers and solvent, process for using solvent by circulation and process for reusing optical isomers in optical resolution |
| 07/18/1995 | US5434298 Process for recovering optical isomers and solvent, process for using solvent by circulation and process for reusing optical isomers in optical resolution |
| 07/13/1995 | WO1995018833A1 Polysaccharide derivatives and their use for preparing stationary chiral phases suitable for separating isomers |
| 07/11/1995 | US5432252 Acrylamide derivatives; use as polymeric adsorbent in separation of racemic mixtures into their optical antipodes |
| 07/11/1995 | US5432251 Acrylamide derivatives; use as polymeric adsorbent in separation of racemic mixtures into their optical antipodes |
| 06/29/1995 | WO1995017433A1 Use of mono-3,6-anhydro-cyclodextrins for solubilising a hydrophobic compound and monitoring the purity of an enantiomer, and method for preparing said cyclodextrins |
| 06/28/1995 | EP0659172A1 Analogues of vpa used as anti-epileptica. |
| 06/21/1995 | EP0658550A2 Amino acid salts of and methods for preparing antihypercholesterolemic tetrazole compounds |
| 06/16/1995 | CA2137049A1 Amino acid salts of and methods for preparing antihypercholesterolemic tetrazole compounds |
| 06/15/1995 | WO1995015953A1 Novel substituted oxazolidines |
| 06/13/1995 | US5424446 Process for preparing optically active 4-mercapto-2-pyrrolidone derivative and intermediate therefor |
| 06/13/1995 | US5424428 (-)-[[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl]-hydrazono]pr |
| 06/07/1995 | EP0656333A1 Optical isomer separating agent and process for producing the same |
| 06/06/1995 | US5422417 Substituted phenyl compounds and processes for preparing the same |
| 06/06/1995 | US5422004 Monocyclic or polycyclic aromatic amide moiety; increased enantioselectivity |
| 06/01/1995 | WO1995014934A1 Nmr chiral shift reagent comprising sugar derivative |
| 05/30/1995 | US5420319 Cis-oxalato(trans-1-1,2-cyclohexanediamine) Pt(II) complex having high optical purity and process of preparing same |