| Patents for C07B 57 - Separation of optically-active organic compounds (3,737) |
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| 01/22/1998 | WO1997035841A3 Method for obtaining pure enantiomers of a pyridazinone derivative |
| 01/22/1998 | DE19629206A1 Polymerisable poly:amide derivatives containing double bonds |
| 01/20/1998 | US5710321 Process for preparing the cyclohexylamine salt of (+) - threo-2-hydroxy-3-(2'-aminophenylthio) -3-(4"-methoxyphenyl) -propionic acid and of its (-) -antipode" |
| 01/14/1998 | EP0817765A1 Stereoselective ring opening reactions |
| 01/14/1998 | CN1170395A Production of derivatives of 4a, 5, 9, 10, 11, 12, -bexahydro-6H-benzofuro £3a, 3, 2, -ef| £2| benzazepine |
| 01/08/1998 | WO1998000425A1 Preparation of (7s,trans)-2-(2-pyrimidinyl)-7-(hydroxymethyl)octahydro-2h-pyrido[1,2-a]pyrazine |
| 01/08/1998 | CA2259496A1 Preparation of (7s,trans)-2-(2-pyrimidinyl)-7-(hydroxymethyl)octahydro-2h-pyrido[1,2-a]pyrazine |
| 01/07/1998 | EP0664781B1 Enantiomeric resolution |
| 12/31/1997 | WO1997049733A1 Thermally immobilized polysaccharide derivatives |
| 12/30/1997 | CA2007385C Process for the optical resolution of dropropizine |
| 12/29/1997 | EP0813574A1 Process for the preparation of aromatic carbamoyl-substituted polysaccharide derivatives |
| 12/29/1997 | EP0813546A1 Photochemically cross-linked polysaccharide derivatives as supports for the chromatographic separation of enantiomers |
| 12/18/1997 | WO1997047617A1 Enantiomer separation from chromane acid esters |
| 12/18/1997 | CA2258032A1 Enantiomer separation from chromane acid esters |
| 12/17/1997 | CN1168130A Process for producing optically active 2-halogen propionic acids |
| 12/11/1997 | WO1997046538A1 Processes for producing phenoxy propionic acid derivatives |
| 12/10/1997 | CN1167107A Method of preparing enantiomers of O-demethyltramadol |
| 12/09/1997 | US5696165 Composition of s(-) sodium ibuprofen |
| 12/02/1997 | CA2010011C N-phenyl-n-(4-piperidinyl) amides useful as analgesics |
| 11/26/1997 | EP0808302A1 2-aryl-2-alkyl-omega-alkylaminoalkane nitrile racemate separation process |
| 11/20/1997 | WO1997043244A1 Racemic separation of ketamine |
| 11/20/1997 | DE19619665A1 Racemattrennung von Ketamin Resolution of ketamine |
| 11/18/1997 | US5688956 Method for preparing N-methyl 2-(3-pyridyl) (1R,2R)-2-tetrahydrothiopyrancarbothioamide-1-oxide |
| 11/12/1997 | EP0805793A1 Preparation of optically active aliphatic carboxylic acids |
| 11/11/1997 | US5686464 3,3-diphenylpropylamines, their use and preparation |
| 11/06/1997 | WO1997041084A1 Improved process for the production of enantiomerically-pure azetidine-2-carboxylic acid |
| 11/05/1997 | EP0804405A1 Process for producing optically active 2-halogen propionic acids |
| 11/05/1997 | EP0563388B1 Recovery of optical isomer and solvent in optical resolution, reuse of solvent by recycling, and reuse of optical isomer |
| 10/29/1997 | EP0527235B1 Novel polysaccharide drivative and separating agent |
| 10/22/1997 | CN1036196C 1,3-Oxatholane nucleoside analogues |
| 10/21/1997 | US5679572 A chromatography matrix comprising a polysaccharide bonded to the inner and outer surfaces of a surface-treated porous carrier |
| 10/21/1997 | CA2116464C Process for the preparation of an optically pure aminoalcohol |
| 10/15/1997 | CN1161957A Method for separating tramadol raceme |
| 10/14/1997 | US5677469 Process for resolving chiral acids with 1-aminoindan-2-ols |
| 10/14/1997 | US5676831 Isoindolinone derivative, preparation thereof and pharmaceutical compositions containing same |
| 10/08/1997 | EP0799183A1 3,3-(disubstituted)cyclohexan-1-one monomers and related compounds |
| 10/07/1997 | US5674861 Fluorinated steroids |
| 10/02/1997 | WO1997035841A2 Method for obtaining pure enantiomers of a pyridazinone derivative |
| 09/23/1997 | US5670647 Suppress racemization |
| 09/18/1997 | WO1997033895A1 Isolated rna molecules which bind to arginine and uses thereof |
| 09/10/1997 | EP0794167A2 Optically active 1,1'-biphenanthryl-2,2'-diol, process for preparing the same, and resolving reagent comprising the same |
| 09/10/1997 | CN1159184A Racemisation and asymmetric transformation process used in manufacture of levobupivacaine and analogues thereof |
| 09/09/1997 | US5665890 Chemical synthesis comprising reacting a nucleophile and a chiral or prochiral cyclic substrate |
| 09/09/1997 | CA1339452C Enantiomers of citalopram and derivatives thereof |
| 09/02/1997 | US5663354 Process for preparing enantiomerically pure 6-[(4-chlorophenyl) (1H-1,2,4-triazol-1-yl) methyl]-1-methyl-1H-benzotrizole |
| 09/02/1997 | US5663311 Polysaccharide derivative and separation agent |
| 08/27/1997 | EP0623104B1 Profen resolution |
| 08/26/1997 | CA2124454C Process for preparing ketone enantiomer |
| 08/20/1997 | CN1157614A Process for synthesis of substituted sulphoxides |
| 08/13/1997 | EP0788480A1 Crystallisation of levobupivacaine and analogues thereof |
| 08/13/1997 | EP0623108B1 Preparation of optically active aliphatic carboxylic acids |
| 08/07/1997 | WO1997028271A1 Method of producing optically active amines |
| 08/07/1997 | DE19603575A1 Verfahren zur Herstellung von optisch aktiven Aminen A process for producing optically active amines |
| 08/06/1997 | EP0787715A1 Process for the optical resolution of tramadol |
| 08/06/1997 | EP0787116A1 Process for separating enantiomers from a racemic mixture |
| 08/06/1997 | EP0787115A1 PROCESS FOR PRODUCING DERIVATIVES OF 4a,5,9,10,11,12,-HEXAHYDRO-6H-BENZOFURO 3a,3,2-ef] 2]BENZAZEPINE |
| 08/05/1997 | US5654122 N-aminopyridone dyes |
| 07/30/1997 | EP0786450A2 Process for the preparation of O-demethyltramadol enantiomers |
| 07/16/1997 | EP0763010A4 Enantioselective preparation of optically pure albuterol |
| 07/15/1997 | US5648386 Separation of enantiomers of cimaterol, (-)-cimaterol and the use thereof in pharmaceutical compositions and animal feeds |
| 07/09/1997 | EP0782569A1 Racemisation and asymmetric transformation processes used in the manufacture of levobupivacaine and analogues thereof |
| 07/08/1997 | US5645729 Separations by simulated moving bed chromatography operating at low k' values using weakly interacting adsorbents as the stationary phase |
| 07/02/1997 | EP0781753A1 Enantiometric resolution of 4-(3,4-dichlorophenyl)-3, 4-dihydro-1 (2H)-naphthalenone |
| 07/02/1997 | CN1153161A Production of optically active 2-halo-1-(substituted phenyl) ethanol and substituted styrene oxide |
| 07/01/1997 | US5643793 Method for producing optically active 3-hydroxyhexanoic acids using porcine pancreatic lipase |
| 06/25/1997 | EP0780408A2 Chiral solid-phase for the chromatographic separation of optical isomers |
| 06/25/1997 | EP0780358A1 A process for the resolution of 6-methoxy-alpha-methyl-2-naphthaleneacetic racemic acid into its enantiomers |
| 06/24/1997 | US5641404 Process for the separation of enantiomers |
| 06/19/1997 | WO1997021663A1 Process for obtaining optically active l-alpha-aminocarboxylic acids from corresponding racemic d,l-alpha-aminocarboxylic acids |
| 06/19/1997 | DE19546532A1 Verfahren zur Gewinnung von optisch aktiven L-alpha-Aminocarbonsäuren aus entsprechenden racemischen D,L-alpha-Aminocarbonsäuren Process for obtaining optically active L-alpha-aminocarboxylic acids from the corresponding racemic D, L-alpha-amino carboxylic acids |
| 06/17/1997 | US5639824 Separating agent containing a support and a cyclodextrin derivative |
| 06/10/1997 | US5637767 Method of making (S)-3-(aminomethyl)-5-methylhexanoic acid |
| 06/04/1997 | EP0776883A1 Adduct salts of substituted benzylamine and a process for optically resolving them |
| 06/03/1997 | US5635524 Cyclization; salt formation; separation; stimulant for beta-adrenergic receptors |
| 05/30/1997 | CA2191685A1 Adduct salts of novel substituted benzylamine and a process for optically resolving them |
| 05/28/1997 | EP0775685A1 Process for the isolation of trans- and cis-4-hydroxy-2,2,6-trimethylcyclohexan-1-one from mixtures of these isomers |
| 05/28/1997 | EP0582579B1 N-aminopyridone dyes |
| 05/21/1997 | EP0773940A1 Process for synthesis of substituted sulphoxides |
| 05/14/1997 | CN1034868C Preparing method for 6 alpha, 9 alpha-difluorido-progester-3,20-diones compound |
| 05/13/1997 | US5629450 Reaction of n-acyl-aspartic or glutamic acid with a-phenylethylamine or a-phenylpropylamine, fractional crystallization of salt |
| 05/07/1997 | EP0623105B1 Preparation of optically active aliphatic carboxylic acids |
| 05/07/1997 | EP0565727B1 Novel compound and separating agent |
| 05/07/1997 | EP0436722B1 Polysaccharide derivatives and separating agent |
| 05/06/1997 | US5626762 Separations by simulated moving bed chromatography operating at low K' values using weakly interating adsorbents as the stationary phase |
| 05/06/1997 | US5626757 Resolution of enantiomorphs by electrophoresis and chromatography |
| 04/23/1997 | EP0623107B1 Preparation of optically active aliphatic carboxylic acids |
| 04/23/1997 | CN1148382A Process and diastereomeric salts useful for the optical resolution of racemic' alpha'-[4-(1,1-dimethylethyl) phenyl]-4-(hydroxydiphenylmethyl)-1-piperidinebutanol |
| 04/16/1997 | EP0672030B1 Process for preparing substantially pure enantiomers of phenylpropionic acids |
| 04/16/1997 | EP0664784B1 Enantiomeric resolution |
| 04/15/1997 | US5621142 Aminoalkylcyclopropane derivatives |
| 04/10/1997 | WO1997012881A1 PROCESS FOR THE CONTINUOUS PRODUCTION OF BASIC CYCLIC OPTICALLY ACTIVE α-AMINO ACIDS |
| 04/10/1997 | DE19536658A1 Verfahren zur kontinuierlichen Herstellung von basischen, cyclischen, optisch aktiven alpha-Aminosäuren A process for the continuous production of basic, cyclic, optically active alpha-amino acids |
| 04/10/1997 | CA2233292A1 Process for the continuous production of basic cyclic optically active .alpha.-amino acids |
| 04/09/1997 | EP0766985A1 Process and device for the separation of liquid eutectic mixtures by crystallisation on cooling surfaces |
| 04/09/1997 | EP0625137B1 Method of separating racemates of verapamil |
| 04/09/1997 | CN1146992A Process for preparation of intermediate (R)-3-amino-5-methoxychroman |
| 04/03/1997 | WO1997011927A1 Method of resolving racemic mixtures |
| 04/02/1997 | EP0659172B1 Analogues of vpa used as anti-epileptica |
| 04/01/1997 | US5616717 Process for the preparation of pure enantiomers of 1-(2-pyridyl)-2-cyclohexylethylamine |
| 04/01/1997 | CA2054773C Protected hydroxy method for alcohol-ester separation |