| Patents for C07B 57 - Separation of optically-active organic compounds (3,737) |
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| 05/13/2004 | WO2004014959A3 Cyclodextrin derivatives, preparation method thereof and applications of same |
| 05/13/2004 | DE10249339A1 Verfahren zur Racematspaltung von 3-Aminopentannitril Procedures for the resolution of 3-aminopentanenitrile |
| 05/12/2004 | EP1418170A2 Process for the preparation of optically active amino alcohols by optical resolution |
| 05/12/2004 | EP1417162A1 Chromatographic separation of enantiomers of protected amino acids via smb-method |
| 05/06/2004 | US20040087811 Process for the racemate resolution of 3-aminopentanenitrile |
| 05/06/2004 | EP1414809A1 Indane acetic acid derivatives and their use as pharmaceutical agents, intermediates, and method of preparation |
| 05/06/2004 | EP1335911B1 Synthesis of r(+)alpha-lipoic acid |
| 05/06/2004 | EP1233828B1 Chiral catalysts for asymmetric acylation and related transformations |
| 05/05/2004 | CN1494520A Compositions comprising higher diamondoids and processes for their separation |
| 04/29/2004 | US20040082647 Anticholesterol agents; controlling bile acid transfer into intestines |
| 04/28/2004 | EP1413565A2 Method for optical resolution of 3-aminopentanenitrile |
| 04/28/2004 | EP1412341A1 Process for the preparation of racemic citalopram and/or s- or r-citalopram by separation of a mixture of r- and s-citalopram |
| 04/28/2004 | EP1412313A1 Iso-$g(b)-bisabolol as fragrance and aroma substance |
| 04/28/2004 | EP1154983B1 Novel substituted 3-phenoxy and 3-phenylalkyloxy-2-phenyl-propylamines |
| 04/28/2004 | CN1491948A Spliting method for DL-pantoyl internal ester |
| 04/27/2004 | CA2210337C Resolution of racemates of 2-aryl-2-alkyl-.omega.-alkylaminoalkane-nitriles |
| 04/21/2004 | CN1146554C Enantioeletive synthesis of nonsteroidal antiestrogen |
| 04/20/2004 | US6723868 Process for the 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 |
| 04/15/2004 | WO2004005220A3 Method for asymmetric resolution of a racemic using diprogulic acid and use of said acid as asymmetric resolution agent |
| 04/14/2004 | EP1305270B1 Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids |
| 04/14/2004 | EP1237838B1 New process |
| 04/13/2004 | US6720285 Materials comprising saccharide cross-linked and chemically bonded to a support via urea linkages |
| 04/13/2004 | CA2141456C A process for the preparation of (-)-eserethole from mixtures of (-) and (+)-eserethole |
| 04/08/2004 | WO2004006829A3 Method of separating r(-)- and s(+)-5-[2-[[2-(2-ethoxyphenoxy)ethyl]amino]propyl-2-methoxybenzene-sulphonamide |
| 04/08/2004 | US20040068106 Use in the form of membranes in processes using percolation through membranes for the separation or the preparation of enantiomers |
| 04/08/2004 | US20040068068 Optically active polymer with epoxide functions, method for preparing same, and use thereof |
| 04/08/2004 | US20040065608 Separatory agent comprising polysacciiaride derivative having polycyclic structure |
| 04/07/2004 | CN1487943A Process for preparing clopidogrel |
| 04/06/2004 | US6716843 Inhibitor of dipeptidyl-peptidase iv |
| 04/01/2004 | WO2004026469A1 Active catalysts for stereoselective ring-opening reactions |
| 04/01/2004 | WO2004026247A2 Compositions and methods for separating amines and amino acids from their counter-enantiomers |
| 04/01/2004 | US20040063963 Dimerization; oxidation coupling of naphthol in presence of complex catalyst of copper chloride-tetramethylethylenediamine |
| 04/01/2004 | US20040063112 Using template to prepare imprinted frozen fluid usable as separation medium, recognition element in sensors and bioassays and as catalyst |
| 04/01/2004 | US20040060871 Packing material for separation of optical isomer and method of separating optical isomer with the same |
| 04/01/2004 | CA2498893A1 Active catalysts for stereoselective ring-opening reactions |
| 04/01/2004 | CA2497978A1 Compositions and methods for separating amines and amino acids from their counter-enantiomers |
| 03/31/2004 | EP1401876A1 New derivatives of hyaluronan |
| 03/31/2004 | EP1185498B1 Synthesis of optically active cyclohexylphenylglycolic acid and its esters |
| 03/30/2004 | US6712971 Anionic polymerization of (s)-(-)-n-alpha-methylbenzyl maleimide in the presence of an asymmetric ligand; high specific rotation and molecular weight |
| 03/30/2004 | CA2314115C Process for the optical resolution of the racemic 6-(4-amino-phenyl)-5- methyl-pyridazin-3(2h)one |
| 03/23/2004 | US6710087 For therapy and prophylaxis of disorders that are ameliorated by the inhibition of neuronal monoamine uptake in mammals; disorders including erectile dysfunction, affective disorders, obesity, cerebral function disorders, pain |
| 03/18/2004 | US20040053779 A chiral catalyst complex made by contacting an asymmetric tetradentate ligand with a Bronsted acid, a transition metal salt and an oxidant, where the acidity of the conjugate acid of the salt is =/< than the acidity of the acid; efficiency |
| 03/17/2004 | EP1397335A1 Resolution process for (r)-(-)-2-hydroxy-2-(2-chlorophenyl)acetic acid |
| 03/11/2004 | US20040049074 Replacing the OH of N-oxycarbonyl-protected 3-amino-2-hydroxy propionic acid derivative having steric configuration at 2-position carbon reverse to product with leaving group; converting to OH having inverted configuration with a base |
| 03/11/2004 | US20040049041 Acylation, deacylation, resolution |
| 03/11/2004 | US20040045896 Separating agent for enantiomeric isomers which has the characteristic ability to identify asymmetry. The separating agent includes as an effective component an aromatic polysaccharide derivative having a C10 or higher alkoxy group |
| 03/11/2004 | US20040045498 Screening for optimal yield in the crystallisation of multicomponent systems |
| 03/11/2004 | CA2495448A1 Kinetic resolution method |
| 03/10/2004 | EP0907663B1 Thermally immobilized polysaccharide derivatives |
| 03/04/2004 | US20040044233 Nucleophilic kinetic resolution of cyclic substrates using silyl azides |
| 03/04/2004 | US20040044100 Polyelectrolyte complex films for analytical and membrane separation of chiral compounds |
| 03/03/2004 | EP1392694A1 Optical resolution of (1-benzyl-4-methylpiperidin-3-yl)-methylamine and the use thereof for the preparation of pyrrolo[2,3]pyrimidine derivatives as protein kinases inhibitors |
| 03/03/2004 | EP1392620A2 Novel use of sulfamic acids as resolving agent. |
| 02/25/2004 | CN1477961A Piperazine derivatives, their preparation and their use for treating central nervous system (CNS) disorders |
| 02/24/2004 | USRE38435 Separating agent |
| 02/19/2004 | WO2004014959A2 Cyclodextrin derivatives, preparation method thereof and applications of same |
| 02/19/2004 | WO2004014821A1 Method for the separation of intermediates which may be used for the preparation of escitalopram |
| 02/18/2004 | EP1389606A1 Separatory agent comprising polysaccharide derivative having polycyclic structure |
| 02/18/2004 | EP1389605A1 Separatory agent for optical isomer |
| 02/18/2004 | EP1389193A1 Method for producing biperiden i |
| 02/18/2004 | CN1138759C Novel process |
| 02/12/2004 | WO2004013081A1 Process for the preparation of primary amines |
| 02/12/2004 | US20040030073 Separation media |
| 02/11/2004 | CN1137891C Process for preparing growth hormone cinogenic agent |
| 02/10/2004 | US6689889 Using n-acryloxyphenylaniline neomenthylamide |
| 02/04/2004 | CN1473145A Method of resolving optical isomers of amino acid derivative |
| 02/03/2004 | US6686483 Reacting an oxidizer with an olefin in presence of ketone |
| 02/03/2004 | US6686479 Separation of enantiomorphs |
| 01/28/2004 | EP1383779A2 A process for manufacture of fosinopril sodium |
| 01/27/2004 | US6683220 Chromatographic separation on solid stationary chiral phase of spherical clay particles having interlayer containing optically pure metal-organic complex and liquid mobile phase containing methyl acetate; producing sertraline |
| 01/27/2004 | CA2213007C Stereoselective ring opening reactions |
| 01/27/2004 | CA2069200C Crystalline acid addition salts of diastereomerically pure 1-(2,2-dimethylpropionyloxy)-ethyl-3-cephem-4-carboxylate |
| 01/22/2004 | WO2004006829A2 Method of separating r(-)- and s(+)-5-[2-[[2-(2-ethoxyphenoxy)ethyl]amino]propyl-2-methoxybenzene-sulphonamide |
| 01/22/2004 | CA2492270A1 Method of separating r(-)- and s(+)-5-[2-[[2-(2-ethoxyphenoxy)ethyl]amino]propyl-2-methoxybenzene-sulphonamide |
| 01/21/2004 | EP1254092B1 Resolution of dl-racemic mixtures |
| 01/15/2004 | WO2004005220A2 Method for asymmetric resolution of a racemic using diprogulic acid and use of said acid as asymmetric resolution agent |
| 01/14/2004 | EP1380564A1 Binaphtol derivative and process for producing the same |
| 01/14/2004 | CN1468223A Process for producign optically active ethyl (3r,5s,6e)-7-[2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl]-3,5-dihydroxy-6-heptenoate |
| 01/13/2004 | US6677446 Cross-linked polymers based on bis-silane, bis-thioether, bis-sulphoxide, bis-sulphone and butane-di-yl derivatives of polysaccharides an oligosaccharides, and their shaping as support materials |
| 01/08/2004 | WO2004002924A1 Preparation of chiral amino-nitriles |
| 01/08/2004 | US20040006778 Comprises heat resistant polypeptide for preparing pharmaceuticals; drug biosynthesis; side effect reduction |
| 01/08/2004 | US20040006232 Used as intermediate in the production of the active ingredient of pharmaceutical products for therapy of diabetic complications |
| 01/08/2004 | DE4023773B4 Verfahren zur optischen Auftrennung von zur Herstellung von Diltiazem geeigneten Zwischenprodukten A process for the optical resolution of suitable intermediates for the preparation of Diltiazem |
| 01/07/2004 | CN1465555A Method for resolving raceme and optical rotary supermolecular intercalation structure material prepared by said method |
| 01/06/2004 | US6673942 Resolution of DL-racemic mixtures |
| 01/06/2004 | US6673929 Process for preparing growth hormone secretagogues |
| 01/02/2004 | EP1373241A1 Method for producing optically active dihydropyrones |
| 01/02/2004 | EP1124782B1 Method for racemate splitting of 2-hydroxypropionic acids |
| 01/01/2004 | US20040002615 Preparation of chiral amino-nitriles |
| 01/01/2004 | US20040002610 Salt forming uisng 6.8-dihalooctanoic acid with methylbenzylamine; using phase transfer catalyst |
| 01/01/2004 | US20040002508 Antitumor agents; anticancer agents; sexual disorders; cardiovascular disorders |
| 12/31/2003 | WO2004000761A1 Separation of chiral compounds |
| 12/31/2003 | CN1132839C Process for manufacture of bis (phosphine oxide)- and bis (phosphonate) -compounds |
| 12/30/2003 | US6670484 Process for the production of r(+)α-lipoic acid |
| 12/30/2003 | US6669842 Crystallization, precipitation, filtration, electrophoresis, and chromatography using ansamacrolides, macrolides, macrocyclic peptides, or polyenes; resolution |
| 12/25/2003 | US20030236406 Amination forming a benzylammonium methyl phenoxy 5-tetrahydrobenzothiepine; apical sodium co- dependent bile acid transporter inhibitors, anticholesterol agents |
| 12/24/2003 | WO2003079002A3 Polymeric composite chiral stationary phases of brush type |
| 12/24/2003 | WO2003011846B1 Process for the preparation of 5-substituted isobenzofurans |
| 12/24/2003 | CN1463266A Binaphthol derivative and method for producing same |
| 12/18/2003 | US20030232989 Process for the preparation of specific aromatic aldehydes |