| Patents for C07B 57 - Separation of optically-active organic compounds (3,737) |
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| 10/20/1993 | EP0565727A1 Novel compound and separating agent |
| 10/20/1993 | CN1022482C Porcess for the optical resolution of -cis or-trans-permethric acid |
| 10/14/1993 | WO1993020052A1 Enantiomeric 1-phenyl-2-(2-pyridinyl)ethylamine for the treatment of neurodegenerative disorders |
| 10/14/1993 | CA2093583A1 Reagents for racemate resolution, process for their preparation and use |
| 10/13/1993 | EP0564570A1 Cyclodextrin-epichlorohydrin polymers for separating and adsorbing substances |
| 10/13/1993 | EP0458823B1 A process for preparation of enantiomerically pure polysubstituted 1,4-dihydropyridines |
| 10/12/1993 | CA1323039C Process for the purification of d-hydroxyphenoxypropionic acid |
| 10/06/1993 | EP0563636A1 Process for producing optical active 4-hydroxy-2-cyclopentenone |
| 10/06/1993 | EP0563388A1 Recovery of optical isomer and solvent in optical resolution, reuse of solvent by recycling, and reuse of optical isomer |
| 10/06/1993 | CN1022323C Method for separation of optical isomers of imidazole from racemic modification |
| 09/29/1993 | EP0562643A2 7-Substituted-hept-6-enoic and -heptanoic acids and derivatives thereof |
| 09/29/1993 | EP0562121A1 Separating agent comprising bonded conalbumin |
| 09/28/1993 | US5248813 Salt formation, purification of ibuprofen |
| 09/28/1993 | US5248695 Separation of enantiomers of cimaterol, (-)-cimaterol and the use thereof in animal feeds |
| 09/22/1993 | EP0561237A2 Enantiomer, (-)-N-(2-ethoxyphenyl)-N'-(1,2,2-trimethylpropyl)-2-nitromethene-1,1-diamine, process for its preparation and its use |
| 09/19/1993 | CA2091634A1 Enantiomer (-)-n-(2-ethoxyphenyl)-n'- (1,2,2-trimethylpropyl)-2-nitroethene-1-, 1-diamine, process for the preparation thereof and the use thereof |
| 09/14/1993 | US5245039 Process for preparation of enantiomerically pure polysubstituted 1,4-dihydropyridines |
| 09/07/1993 | US5243070 Process for resolution of racemates of 2,2-dimethylcyclopropanecarboxylic acid |
| 09/02/1993 | WO1993017055A1 Preparation of surface-functional polymer particles |
| 09/02/1993 | WO1993017022A1 Process for separating stereoisomers of folinic acid |
| 08/25/1993 | EP0431121B1 Process for the resolution of threo-3-[(2-aminophenyl)-thio]-2-hydroxy-3-(4-methoxy-phenyl)propionic acid |
| 08/19/1993 | WO1993016074A1 Novel isoindolinone derivative, preparation thereof, and pharmaceutical compositions containing same |
| 08/19/1993 | WO1993016035A1 Method of separating racemates of verapamil |
| 08/17/1993 | US5237096 Racemization of (1S-trans)-3-methylenecyclopropane-1,2-dicarboxylic acid; salt formation, acidification, extraction |
| 08/17/1993 | US5237095 Process for the preparation of an antiviral agent |
| 08/12/1993 | DE4203547A1 Verfahren zur racemattrennung von verapamil Process for the resolution of racemic verapamil |
| 08/10/1993 | US5235101 Preparation by flotation of optically active aliphatic carboxylic acids |
| 08/10/1993 | US5235100 Adding a base to a melt to form a salt; adding a chiral organic nitrogen base and separating the precipitate |
| 08/10/1993 | US5235095 Forming a salt, reacting with a chiral organic nitrogenous base to form a salt, precipitation |
| 08/05/1993 | WO1993015040A1 Preparation of optically active aliphatic carboxylic acids |
| 08/05/1993 | WO1993015039A1 Preparation of optically active aliphatic carboxylic acids |
| 08/05/1993 | WO1993015038A1 Preparation of optically active aliphatic carboxylic acids |
| 08/05/1993 | WO1993015037A1 Preparation by flotation of optically active aliphatic carboxylic acids |
| 08/05/1993 | WO1993013053A3 Isomerisation process |
| 08/05/1993 | CA2128521A1 Preparation of optically active aliphatic carboxylic acids |
| 08/05/1993 | CA2128520A1 Preparation of optically active aliphatic carboxylic acids |
| 08/05/1993 | CA2128519A1 Preparation of optically active aliphatic carboxylic acids |
| 08/05/1993 | CA2128518A1 Preparation of flotation of optically active aliphatic carboxylic acids |
| 08/03/1993 | US5233086 Intermediates for the preparation of an antiviral agent |
| 07/28/1993 | EP0552254A1 Crystallization of optical isomers of leukotriene antagonists |
| 07/27/1993 | US5231196 Calixarene derivatives and process for the preparation thereof |
| 07/22/1993 | WO1993014056A1 Profen resolution |
| 07/22/1993 | CA2128525A1 Profen resolution |
| 07/20/1993 | CA1320495C2 Optically active ketals, processes for their preparation and their use in the synthesis of alpha-arylakanoic acids |
| 07/14/1993 | EP0550889A1 Process for producing L-Ambrox |
| 07/14/1993 | EP0407412B1 Substituted cyclodextrins and process for chromatographic separation of chiral organic compounds |
| 07/14/1993 | CN1074212A Crystallization of optical isomers of leukotriene antagonists |
| 07/08/1993 | WO1993013087A1 A PROCESS FOR THE RESOLUTION OF (+-)-α-[2-[ACETYL(1-METHYLETHYL)AMINO]ETHYL]-α-(2-CHLOROPHENYL)-1-PIPERIDINEBUTANAMIDE |
| 07/08/1993 | WO1993013053A2 Isomerisation process |
| 07/08/1993 | WO1993013034A1 Separation of amino acids, amino-acid-based monomer, and process for the preparation thereof, as well as polymer material and process for the preparation thereof |
| 07/08/1993 | CA2126082A1 Separation of amino acids, amino-acid-based monomer, and process for the preparation thereof, as well as polymer material and process for the preparation thereof |
| 07/08/1993 | CA2122584A1 A process for the resolution of (+-)-.alpha.-¬2-¬acetyl(1-methylethyl)amino|ethyl|-.alpha.-(2-chlorophenyl)-1-piperidinebutanamide |
| 06/30/1993 | CN1021436C Process for preparing of absolute stereochemical formula crystallographic compound |
| 06/29/1993 | US5223647 Using reagent reactive with 4-hydroxy-2,2,6-trimethylcyclohex-ane, selected from halides, silyls, sulfonyl chlorides, carbonyl chlorides, anhydrides, carbonates and chlorocarbonate ; extraction of formed derivative |
| 06/24/1993 | WO1993012062A1 Process for preparing ketone enantiomer |
| 06/24/1993 | WO1993012054A1 Crystallization of optical isomers of leukotriene antagonists |
| 06/24/1993 | CA2125495A1 Crystallization of optical isomers of leukotriene antagonists |
| 06/15/1993 | US5220053 Mixing racemic acid with solvent, reacting with chiral base, precipitating salt, treating with racemic mixture to increase concentration, separating |
| 06/09/1993 | EP0545168A1 Optically active polymer beads containing a filler |
| 06/09/1993 | EP0544740A1 Process for transforming (benzoyl-3 phenyl)-2 propionic acid into an s(+) isomer. |
| 06/08/1993 | US5218142 Recovering racemic (trans) 3-methylene-1,2-cyclopropanedicarboxylic acid from the reaction of (trans)-3-methylene-1,2-cyclopropanedicarboxylic acid with (r)-(+)-alpha -methylbenzylamine |
| 06/02/1993 | CN1021011C 2,2-difluocyclopropylethane derivatives processes for their preparation and their use as pesticides |
| 05/27/1993 | WO1993010118A1 Method of separating the enantiomers of 5-methyl-tetrahydrofolic acid |
| 05/26/1993 | EP0543088A1 Preparation and use of salts of the pure enantiomers of alpha-lipoic acid |
| 05/26/1993 | CN1072411A Therapeutically active compound |
| 05/25/1993 | US5214201 Crystallization of optical isomers of leukotriene antagonists |
| 05/25/1993 | CA1318308C Packing material for chromatographic use and method for analysis of enantiomer mixture using the same |
| 05/19/1993 | EP0542099A2 Process for preparation of optically active 1,3-imidazolidin-4-ones and their application |
| 05/13/1993 | WO1993009075A1 Method for separating enantiomers of aryloxipropanolamine derivatives, and chiral solid-phase chromatography material for use in the method |
| 05/13/1993 | WO1993008903A1 Process and capillary columns for separating enantiomers |
| 05/13/1993 | DE4136921A1 Verfahren zur trennung von 5-methyl-tetrahydrofolsaeure Process for the separation of 5-methyl-tetrahydrofolsaeure |
| 05/12/1993 | CN1020598C Conversion of pyrethroid isomers to more active species |
| 05/06/1993 | DE4136462A1 Verfahren zur enantiomerentrennung an chiral modifizierten trennoberflaechen durch elektromigration in kapillarsaeulen Process for the separation of enantiomers on chiral modified trennoberflaechen by capillary electromigration in |
| 05/05/1993 | EP0540165A1 Alkanoic acid derivatives |
| 05/05/1993 | EP0539848A1 N-(mercaptoacyl)amino acids, methods of their preparation and therapeutic use, and pharmaceutical compositions containing them |
| 05/04/1993 | US5208255 Thioester enantiomeric compounds and their therapeutic uses |
| 04/29/1993 | WO1993008162A1 N-(mercaptoacyl)amino acids, methods of their preparation and therapeutic use, and pharmaceutical compositions containing them |
| 04/29/1993 | CA2121801A1 N-(mercaptoacyl)amino acids, methods of their preparation and therapeutic use, and pharmaceutical compositions containing them |
| 04/28/1993 | EP0340247B1 New process for the antipodal separation of bicyclo 3.3.0]octane-3,7-dion-2-carboxylic acid esters and their 7-monocetals |
| 04/27/1993 | US5206363 Process for the resolution of enantiomers of 5-heteroaryl-1,3,4-thiadiazinones |
| 04/27/1993 | CA1317067C2 Process for their resolution of racemates of optically active bicyclic imino-o-carboxylic esters, and the use of the compounds thus obtainable for the synthesis of carboxyalkyl-dipeptides |
| 04/27/1993 | CA1316938C Process for the optical resolution of 2-(6-methoxy-2- naphthyl) propionic acid |
| 04/21/1993 | EP0538222A1 3-(N-Isopropyl-N-n-propylamino)-5-(N-isopropyl)carbamoylchroman as a selective 5-hydroxytryptamine receptor stimulant |
| 04/21/1993 | EP0537492A2 Stable salts of 5,10-methylenetetrahydrofolic acid |
| 04/15/1993 | WO1993007135A1 3-(n-isopropyl-n-n-propylamino)-5-(n-isopropyl)carbamoylchroman |
| 04/15/1993 | CA2118708A1 3-(n-isopropyl-n-n-propylamino)-5-(n-isopropyl) carbamoylchroman |
| 04/13/1993 | US5202504 Separating agent |
| 04/13/1993 | US5202433 For racemic mixtures |
| 04/13/1993 | CA1316182C2 Intermediates for 2,2-difluorocyclopropylethane derivatives |
| 04/10/1993 | WO1993007104A1 Separating agent comprising bonded conalbumin |
| 04/10/1993 | CA2097719A1 Separating agent comprising bonded conalbumin |
| 04/07/1993 | EP0535448A2 Process and intermediates for the preparation of an antiviral agent containing a cyclobutyl group |
| 04/07/1993 | EP0516686A4 Separation by carrier mediated transport |
| 04/06/1993 | US5200555 Process for the preparation of S(+)-6-methoxy-α-methyl-2-naphthalene-acetic acid |
| 04/03/1993 | CA2079496A1 Process and intermediates for the preparation of an antiviral agent |
| 04/01/1993 | WO1993006080A1 Separation of enantiomers of non-steroidal anti-inflammatory drugs and chiral selector therefor |
| 03/31/1993 | EP0532664A4 Supported chiral liquid membrane for the separation of enantiomers |
| 03/30/1993 | US5198557 Reaction with mercapto compound for cardiovascular disorders |
| 03/30/1993 | US5198429 Substituted cyclodextrins and process for chromatographic separation of chiral organic compounds |
| 03/24/1993 | EP0532664A1 Supported chiral liquid membrane for the separation of enantiomers. |