| Patents for C07B 57 - Separation of optically-active organic compounds (3,737) |
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| 12/23/1999 | WO1996002535A8 Process for synthesis of substituted sulphoxides |
| 12/22/1999 | EP0965588A1 Process for the preparation of 4-phenyl-1,2,3,6-tetrahydropyridine derivatives and intermediates used in this process |
| 12/08/1999 | CN1237959A Process for preparation of an inorganic salt of an optically active |
| 12/08/1999 | CN1047167C Process for enantioselective synthesis used as intermediates in preparation of physostigmine |
| 11/30/1999 | US5994560 Utilizes polymers containing chiral moieties in their repeat units as well as exhibiting critical solution temperature behavior in a suitable solvent. resolution of tryptophan, phenylalanine or glutamic acid. |
| 11/30/1999 | US5994548 Crystallisation of levibupivacaine and analogues thereof |
| 11/18/1999 | WO1999058532A1 Method for producing (s,s)-benzyl-2,8-diazabicyclo[4.3.0]nonane |
| 11/18/1999 | DE19821039A1 Production of (S,S)-8-benzyl-2,8-diazabicyclo(4.3.0)nonane useful as intermediate for antibiotic moxifloxacin |
| 11/16/1999 | CA2004887C Recovery of l-amino acid isomers from their racemic mixtures |
| 11/11/1999 | WO1999057089A1 Process for the production of enantiomerically pure or optically enriched sertraline-tetralone using continuous chromatography |
| 11/11/1999 | WO1999056699A2 Main-group metal-based asymmetric catalysts and applications thereof |
| 11/11/1999 | CA2329316A1 Main-group metal-based asymmetric catalysts and applications thereof |
| 11/09/1999 | US5981807 Production of optically active 2-halo-1-(substituted phenyl)ethanol and substituted styrene oxide |
| 11/02/1999 | US5977409 Method of using α-substituted benzylamine chiral auxiliary synthetic reagents |
| 10/26/1999 | US5973151 Aromatic condensation compounds useful as optically active building blocks |
| 10/21/1999 | WO1999052886A1 Kinetic resolution of olefins |
| 10/21/1999 | CA2328299A1 Kinetic resolution of olefins |
| 10/14/1999 | WO1999042192A8 Packed capillaries, especially for enantiomeric separation |
| 10/12/1999 | US5964996 Electrophoresis of fluid containing the enantiomers with a macrocyclic antibiotic, which causes sequential separation of enantiomers by complexation, inclusion, hydrogen bonding, dipole stacking or steric interaction |
| 10/06/1999 | EP0946496A2 Process for resolving mixtures of carbocyclic stereoisomers |
| 10/06/1999 | EP0946467A1 Method for splitting 1-amino-alkan-2-ol compounds |
| 09/29/1999 | EP0664784B2 Enantiomeric resolution |
| 09/28/1999 | US5959161 Method for producing para-menthane-3,8-diol |
| 09/28/1999 | US5959112 Solvent extraction to liberate hydrochloric acid salt with dilute base, pipecoloxylidide is resolved by crystallization with water, alkylating with 1-halopropane in presence of catalyst, heating and removing inorganic salt by extraction |
| 09/28/1999 | US5959050 Comprising spherical, uniformly shaped, and non-aggregated particles formed by suspension polymerization of two distinct acrylic monomers in the presence of imprint molecule, liquid flurocarbon, fluorocarbon polymer |
| 09/23/1999 | WO1999047475A1 Method for separating a diphosphine diastereoisomers |
| 09/23/1999 | WO1999047228A1 Improved method for enriching optical isomers by means of simulated mobile bed |
| 09/23/1999 | CA2322986A1 Method for separating a diphosphine diastereoisomers |
| 09/15/1999 | EP0752980B1 Substituted phenyl compounds and processes for preparing the same |
| 09/15/1999 | CN1228423A Process for preparation of optically active indoline-2-carboxylic acid or derivative thereof |
| 09/14/1999 | US5952503 Method for producing optically-active 2-piperazinecarboxylic acid derivatives |
| 09/07/1999 | US5948904 Process for the preparation of aromatic carbamoyl-substituted polysaccharide derivatives |
| 09/07/1999 | US5948789 Process for synthesis of substituted sulphoxides |
| 09/02/1999 | WO1999043668A1 NOVEL β-DIKETONE COMPOUNDS, β-DIKETONE COMPOUNDS COORDINATED TO METAL, METHOD OF ORGANIC SYNTHESIS WITH THESE, AND CATALYST |
| 09/01/1999 | CN1227210A Liquid phase chromatography device and method for separating optical isomeric compound |
| 08/26/1999 | WO1999042192A1 Packed capillaries, especially for enantiomeric separation |
| 08/26/1999 | DE19807063A1 Production of capillaries with a chiral sorbent bed |
| 08/25/1999 | EP0937714A1 Process for the preparation of an optically active indoline-2-carboxylic acid or derivative thereof |
| 08/25/1999 | EP0937056A1 A process for the preparation of (-)-3,4-trans-diarylchromans |
| 08/17/1999 | US5939409 Processes for the production of anti-inflammatory steroids |
| 08/10/1999 | US5936118 Process for chiral enrichment of optically active carboxylic acids or salts or esters thereof |
| 08/05/1999 | WO1999038594A1 Separation of substance mixtures using polysaccharides |
| 08/05/1999 | DE19803415A1 Trennung von Stoffgemischen unter Einsatz von Polysacchariden Separation of mixtures of substances using polysaccharides |
| 08/05/1999 | CA2319386A1 Separation of substance mixtures using polysaccharides |
| 08/04/1999 | EP0933360A1 Synthesis of new beta-lactams |
| 07/28/1999 | CN1224019A Process for manufacture of bis (phosphine oxide)- and bis (phosphonate) -compounds |
| 07/28/1999 | CN1044367C (S)-alpha-phenyl-2-pyridine-ethylamine, its preparing method and composition contg. same |
| 07/27/1999 | US5929232 Stereoselective ring opening reactions |
| 06/30/1999 | EP0926152A1 Process for the manufacture of bis(phosphine oxide)-and bis(phosphonate)-compounds |
| 06/30/1999 | EP0926131A2 Process for the preparation of aminoalcohol derivatives and their further transformation zu (1R,4S)-4-((2-amino-6-chlor-5-formamido-4-pyrimidinyl)-amino)-2-cyclopenten-1-methanol |
| 06/30/1999 | CN1221418A Preparation of (7S, trans)-2-(2-pyrimidinyl)-7-(hydroxymethyl) octahydro-2h-pyrido [1,2-A] pyrazine |
| 06/30/1999 | CN1221413A Enantiomer separation from dioxide pyranium ester |
| 06/23/1999 | CN1220664A Process for producing phenoxy propionic acid derivatives |
| 06/22/1999 | CA2256865A1 Synthesis of new .beta.-lactams |
| 06/16/1999 | CN1043645C New benzothiadiazine compound, process for its preparation and pharmaceutical compositions which contain it |
| 06/09/1999 | CN1218795A Process for preparation of aminoalcohol derivatives and their further conversion to (1R,4S)-4-((2-amino-6-chloro-5-formamido-4-pyrimidinyl) amino)-2-cyclopentenyl-1-methanol |
| 06/02/1999 | EP0918744A1 Racemic separation of ketamine |
| 05/27/1999 | CA2591571A1 Process for the preparation of aminoalcohol derivatives and their further conversion to (1s,4r)- or (1r,4s)-1-amino-4-(hydroxymethyl)-2-cyclopentene |
| 05/19/1999 | EP0915849A2 Process for the preparation of 3,3-disubstituted piperidines |
| 05/19/1999 | EP0813574B1 Process for the preparation of aromatic carbamoyl-substituted polysaccharide derivatives |
| 05/19/1999 | CN1216972A Improved process for prodn. of enantiomerically-pure azetidine-2-carboxylic acid |
| 05/12/1999 | EP0915335A1 A separating agent comprising an optically active polymer and polystyrene cristalline deposited on a carrier |
| 05/06/1999 | WO1999021811A1 Method of separating optical isomers |
| 05/06/1999 | EP0912569A1 Preparation of (7s,trans)-2-(2-pyrimidinyl)-7-(hydroxymethyl)octahydro-2h-pyrido 1,2-a]pyrazine |
| 05/06/1999 | EP0912528A1 Processes for producing phenoxy propionic acid derivatives |
| 05/04/1999 | US5900144 Separating agent comprising bonded conalbumin |
| 04/15/1999 | WO1999018052A1 Separating agent for optical isomers and process for producing the same |
| 04/14/1999 | EP0907663A1 Thermally immobilized polysaccharide derivatives |
| 04/07/1999 | EP0906906A1 Process for preparing optically active 2-piperazinecarboxylic acid derivatives |
| 04/07/1999 | EP0906900A1 A process for preparing optically active 2-hydroxy-methyl-3-phenylpropionic acid |
| 04/07/1999 | EP0906302A1 Enantiomer separation from chromane acid esters |
| 04/07/1999 | EP0906255A1 Improved process for the production of enantiomerically-pure azetidine-2-carboxylic acid |
| 04/07/1999 | EP0804405B1 Process for producing optically active 2-halogen propionic acids |
| 04/07/1999 | EP0570454B1 Novel steroids |
| 04/06/1999 | US5892098 Inhibit activity of phosphodiesterase iv and production of tumor necrosis factor; treating asthma |
| 03/30/1999 | US5889186 Resolution using fluidized bed chromatography |
| 03/30/1999 | US5889180 Separation; resolution; adsorption |
| 03/23/1999 | US5886214 Catalytic asymmetric hydrogenation of enol esters bearing a vinyllic or an acetylenic substituent by using a chiral rhodium(i) hydrogenation catalyst prepared from a suitable rhodium salt and an optically pure phosphine ligand |
| 03/23/1999 | CA2022611C Optical resolution method for 3s-(3-carboxybenzyl)-6-(5-fluoro-2-benzothiazolyl)methoxy-4s-chromanol |
| 03/17/1999 | EP0736045B1 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 |
| 03/10/1999 | CN1042418C Optical isomer separating agent and process for prodcuing the same and its use |
| 03/04/1999 | WO1998054228A3 Amide containing molecular imprinted polymers |
| 03/03/1999 | EP0899272A1 Mono and di-derivatives of cyclodextrins, their synthesis and purification and their use as carrier |
| 03/03/1999 | EP0612322B1 Method of separating the enantiomers of 5-methyl-tetrahydrofolic acid |
| 02/28/1999 | CA2243640A1 Mono and di-derivatives of cyclodextrins, their synthesis and purification and their use as support |
| 02/23/1999 | US5874005 Separation of enantiomorphs in solution; chromatography, electrophoresis |
| 02/16/1999 | US5872198 Molecularly imprinted polymer supports capable of separating or resolving amino-acids, amino-acid derivatives, pharmaceutical compounds and polysaccharides |
| 02/09/1999 | USRE36092 Cyclodextrins which have been alkylated or alkenylated, optionally acylated |
| 02/09/1999 | US5869668 Processes for preparing L!- or D!-homoalanin-4-yl-(methyl) phosphinic acid and salts thereof by racemate resolution |
| 02/09/1999 | US5868938 Chromatographic supports |
| 02/03/1999 | EP0894087A2 Method for obtaining pure enantiomers of a pyridazinone derivative |
| 02/03/1999 | EP0748325B1 Process for preparing [l]- or [d]-homoalanin-4-yl-(methyl)phosphinic acid and its salts by racemic resolution |
| 02/03/1999 | EP0632794B1 Method for separating enantiomers of aryloxipropanolamine derivatives, and chiral solid-phase chromatography material for use in the method |
| 01/27/1999 | EP0893453A2 Chiral separation of pharmaceutical compounds with charged cyclodextrins using capillary electrophoresis |
| 01/07/1999 | EP0888367A1 Isolated rna molecules which bind to arginine and uses thereof |
| 01/05/1999 | US5856579 Adduct salts of novel substituted benzylamines and a process for optically resolving them |
| 12/24/1998 | DE19717429A1 Herstellung enantiomerenreiner Biarylketocarbonsäuren Preparation of enantiomerically pure Biarylketocarbonsäuren |
| 12/23/1998 | EP0720595B1 Method of resolution of two enantiomers by crystallization |
| 12/22/1998 | US5852209 Process for optically resolving 2-(3-benzoylphenyl) propionic acid |
| 12/15/1998 | US5849961 Optically active 1,1'-biphenanthryl-2,2'-diol, process for preparing the same, and resolving reagent comprising the same |