| Patents for C07B 57 - Separation of optically-active organic compounds (3,737) |
|---|
| 12/03/1998 | WO1998054228A2 Amide containing molecular imprinted polymers |
| 12/01/1998 | CA2026216C Optically active benzyl alcohol compound and the use thereof |
| 11/24/1998 | US5840964 Second order resolution of ketals |
| 11/24/1998 | US5840956 Intermediate for anticonvulsant |
| 11/18/1998 | EP0877815A1 Method of producing optically active amines |
| 11/05/1998 | WO1998049124A1 Production of enantiomer-free biarylketocarboxylic acids |
| 11/05/1998 | DE19718119A1 New quina alkaloid unsaturated urethane derivatives |
| 11/05/1998 | CA2288107A1 Production of enantiomer-free biarylketocarboxylic acids |
| 11/04/1998 | EP0874801A1 Process for obtaining optically active l-alpha-aminocarboxylic acids from corresponding racemic d,l-alpha-aminocarboxylic acids |
| 10/28/1998 | CN1197447A Method of resolving racemic mixtures |
| 10/21/1998 | EP0872467A1 Process for the production of chiral unsaturated alcohols in high optical purity |
| 10/20/1998 | US5824830 Ruthenium-phosphine complex |
| 10/15/1998 | WO1998045240A1 Process for chiral enrichment of optically active carboxylic acids, or salts or esters thereof |
| 10/15/1998 | WO1998045230A1 Chromatographic enantiomer separation of lactones |
| 10/15/1998 | DE19714343A1 Chromatographische Enantiomerentrennung von Lactonen Chromatographic separation of the enantiomers of lactones |
| 10/15/1998 | CA2286460A1 Process for chiral enrichment of optically active carboxylic acids, or salts or esters thereof |
| 10/14/1998 | CN1196062A Photochemically cross-linked polysaccharide derivatives having no photopolymerisable functional group |
| 10/14/1998 | CA2233743A1 Process for the production of chiral unsaturated alcohols in high optical purity |
| 10/13/1998 | USRE35919 Introducing solution of optical isomer mixture and desorbing liquid into bed containing optical resolution packing where adsorption, concentration, desorption and liquid recovery are carried out continuously in circulation |
| 10/13/1998 | US5821311 Stabilizers, polymers, and emulsions useful for molecular imprinting technology |
| 09/29/1998 | US5814231 Separation of liquid eutectic mixtures by crystallization on cold surfaces and apparatus for this purpose |
| 09/22/1998 | US5811532 Covalently bound, polysaccharide-based chiral stationary phases |
| 09/16/1998 | EP0864586A2 Chiral compounds, synthesis and use on a support |
| 09/16/1998 | EP0733047B1 Substituted oxazolidines with stimulating effect of beta-adrenergig receptor |
| 09/11/1998 | WO1998024741A3 Process for resolving mixtures of carbocyclic stereoisomers |
| 09/02/1998 | EP0861840A1 Aromatic condensation compounds useful as opticaly active building blocks |
| 09/02/1998 | EP0656333B1 Optical isomer separating agent and process for producing the same |
| 09/01/1998 | US5801280 Processes for preparing optically active alcohols and optically active amines |
| 08/26/1998 | EP0859764A1 PROCESS FOR THE CONTINUOUS PRODUCTION OF BASIC CYCLIC OPTICALLY ACTIVE $g(a)-AMINO ACIDS |
| 08/19/1998 | EP0755397B1 A process for the preparation and separation of diastereomeric salts of folinic acid |
| 08/18/1998 | CA2087104C Neuromuscular blocking agents |
| 08/18/1998 | CA2078939C Stable salts of 5,10-methylenetetrahydrofolic acid |
| 08/05/1998 | CN1189822A Process for the prepn. of ropivacaine hydrochloride monohydrate |
| 07/29/1998 | EP0854846A1 Method of resolving racemic mixtures |
| 07/28/1998 | US5786498 Resolution of racemates of 2-aryl-2-alkyl-ω-alkylaminoalkane-nitriles |
| 07/28/1998 | US5786484 Racemization and asymmetric transformation processes used in the manufacture of levobupivacaine and analogues thereof |
| 07/28/1998 | US5786380 Modified valproic acid |
| 07/28/1998 | CA2096316C Method for the manufacture of the derivatives of propionic acid |
| 07/22/1998 | EP0671975B1 Chiral adsorbents and preparation thereof as well as compounds on which the adsorbents are based and preparation of these compounds |
| 07/14/1998 | CA2158130C Process and intermediates for preparing azabicyclo(2.2.2)octan-3-imines |
| 07/09/1998 | WO1998029398A1 Process for preparing optically active 2-piperazinecarboxylic acid derivatives |
| 07/07/1998 | US5777173 Preparation of pure trans- and cis-4-Hydroxy-2,2,6-trimethylcyclohexan-1-one from isomerc mixtures |
| 07/01/1998 | EP0626965B1 Process for separating stereoisomers of folinic acid |
| 07/01/1998 | CN1186483A Separation of alpha-arylpropionic acid ester diastereomers by distillation |
| 06/23/1998 | US5770084 Polymerized chiral micelles for chiral separations |
| 06/16/1998 | US5767309 Precipitation of one distereoisomers |
| 06/16/1998 | US5767279 From 2-cyanopyridine |
| 06/16/1998 | CA2042535C Process for the preparation of intermediates useful for the synthesis of benzothiazepines |
| 06/11/1998 | WO1998024741A2 Process for resolving mixtures of carbocyclic stereoisomers |
| 06/09/1998 | US5763659 Preparation of optically active 2-halopropionic acids |
| 06/09/1998 | US5763645 Adsorption, concentration, desorption, eluent recovery |
| 06/04/1998 | WO1998023559A1 Method for splitting 1-amino-alkan-2-ol compounds |
| 06/04/1998 | CA2273012A1 Method for splitting 1-amino-alkan-2-ol compounds |
| 06/03/1998 | EP0845455A1 Addition salts of acyl-amino acids and alpha-arylamines and process for the optical resolution of alpha-arylamines |
| 06/03/1998 | CN1183771A Process for preparing racemic and enantiomeric 1 -(pyridyl) -2 -cyclohexylethylamine |
| 06/03/1998 | CN1183408A Process for preparing intermediate in preparation of substd. peperidines |
| 06/02/1998 | US5760287 Process for the resolution of 6-methoxy-alpha-methyl-2-naphthaleneacetic racemic acid into its enantiomers |
| 06/02/1998 | US5760016 Use of mono-3,6-anhydrocyclodextrins for solubilizing a hydrophobic compound and for controlling the purity of an enantiomer and process for the preparation of these cyclodextrins |
| 05/26/1998 | US5756862 Racemization with acid catalyst |
| 05/22/1998 | WO1998005640A3 Process for the preparation of 3,3-disubstituted piperidines |
| 05/20/1998 | CN1182068A Process for separation of mixture of enantiomers |
| 05/13/1998 | EP0841318A2 Optical isomers of derivatives of campholenic aldehyde |
| 05/13/1998 | EP0840752A1 Photochemically cross-linked polysaccharide derivatives having no photopolymerisable functional groups |
| 05/07/1998 | WO1998018770A1 A process for the preparation of (-)-3,4-trans-diarylchromans |
| 05/06/1998 | EP0748247A4 Macrocyclic antibiotics as separation agents |
| 05/06/1998 | CA2220273A1 Optical isomers of derivatives of campholenic aldehyde |
| 05/05/1998 | US5746840 Chemical intermediate; 6-((4-chlorophenyl)hydrazinomethyl)-1-methyl-1h-benzotriazole |
| 04/29/1998 | EP0838448A1 Process for the separation of a mixture of enantiomers |
| 04/23/1998 | CA2218804A1 Process for the separation of a mixture of enantiomers |
| 04/22/1998 | EP0562121B1 Separating agent comprising bonded conalbumin |
| 04/14/1998 | US5739383 Resolution of racemic mixtures using polymers containing chiral units |
| 04/14/1998 | US5739360 Intermediates for the synthesis of bisphosphine compounds |
| 04/14/1998 | CA2119674C Enantiomeric resolution of 4-(3,4-dichlorophenyl)-3,4-dihydro-1(2h)-naphthalenone |
| 04/08/1998 | EP0667852B1 Novel 3,3-diphenylpropylamines, their use and preparation |
| 04/07/1998 | US5736411 Chiral shift reagent for NMR comprising saccharide derivative |
| 04/02/1998 | WO1998013335A1 Process for the preparation of an inorganic salt of an optically active phenylglycine derivative |
| 03/31/1998 | US5734043 Polysaccharide supported on silica gel |
| 03/25/1998 | EP0830338A1 Method of making (s)-3-(aminomethyl)-5-methylhexanoic acid |
| 03/25/1998 | CN1177358A Photochemically cross-linked polysaccharide derivatives as supports for the chromatoghaphic separation of enantiomers |
| 03/25/1998 | CN1176963A Method for preparing optically active 2 -tetrahydrofuran formic acid |
| 03/18/1998 | EP0828767A1 Molecularly imprinted beaded polymers and stabilized suspension polymerization of the same in perfluorocarbon liquids |
| 03/18/1998 | EP0828711A1 New process for the preparation of ropivacaine hydrochloride monohydrate |
| 03/18/1998 | EP0828702A1 Process for resolving chiral acids with 1-aminoindan-2-ols |
| 03/18/1998 | EP0828699A1 Separation of alpha-arylpropionic acid ester diastereomers by distillation |
| 03/18/1998 | CN1037768C Preparation of substituted piperidines |
| 03/17/1998 | US5728885 Forming free base by reacting with caustic soda, salt forming and precipitating with tartaric acid, releasing free base from tartrate salt by caustic soda, forming salt, releasing free base, reacting with diisobutylaluminum hydrate |
| 03/11/1998 | EP0633879B1 Enantiomeric 1-phenyl-2-(2-pyridinyl)ethylamine for the treatment of neurodegenerative disorders |
| 03/05/1998 | WO1998008787A2 Resolution of racemic mixtures using polymers containing chiral units |
| 03/04/1998 | EP0826694A1 Ruthenium-phosphine complex |
| 03/04/1998 | EP0664782B1 Enantiomeric resolution |
| 03/04/1998 | CN1175242A 3, 3 -(disubstituted) cyclohexan -1 -one monomers and related compounds |
| 03/04/1998 | CN1037608C Crystallizing acid addition salt of 3 -cephem -4 -carboxylic acid -1 -(2, 2 -dimethylpropionyloxy) ethyl ester non-emantiomorph prepn process |
| 03/03/1998 | US5723668 Method of separating the racemate of tramadol |
| 03/03/1998 | US5723667 Method of producing optically active tert-leucinol and its use |
| 02/26/1998 | WO1998007671A1 Separating enantiomers by molecular imprinting |
| 02/12/1998 | WO1998005640A2 Process for the preparation of 3,3-disubstituted piperidines |
| 02/04/1998 | EP0821672A2 Process for preparing racemic and enantiomeric 1-(pyridyl)-2-cyclohexylethylamine |
| 02/04/1998 | EP0664783B1 Enantiomeric resolution |
| 02/04/1998 | CN1172470A 2 -aryl -2 -alkyl -'omega' -alkylaminoalkane nitrile racemate separation process |
| 02/03/1998 | CA2098989C Process and intermediates for preparing azabicyclo(2.2.2)octan-3-imines |