| Patents for C07B 57 - Separation of optically-active organic compounds (3,737) |
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| 05/30/1995 | US5420286 Forming a glycoside with a saccharide and resolution then treatment with acid |
| 05/24/1995 | EP0610419B1 Process for separating enantiomers |
| 05/17/1995 | EP0652881A1 A process for the preparation of (-)-eserethole from mixtures of (-) and (+)-eserethole |
| 05/16/1995 | US5415769 Separation agent comprising aliphatic or aromatic ester of polysaccharide |
| 05/02/1995 | US5412114 Etherification, optical resolution, steric hindrance |
| 04/13/1995 | WO1995009907A1 Chemical separation using crystals of biological macromolecules |
| 04/06/1995 | DE4333687A1 Kinetic racemate resolution of saturated three-membered heterocycles |
| 04/06/1995 | DE4333686A1 Kinetic racemate resolution of saturated three-membered heterocycles |
| 04/05/1995 | EP0646585A1 Adducts of bis (cyclic vinyl ethers) with carboxylic acids and their use in enantioselective synthesis |
| 04/05/1995 | EP0593639B1 Pyrrolidine and thiazolidine derivatives, preparation thereof and drugs containing same |
| 04/05/1995 | CN1028097C Disconnecting for cis-chrysanthemum acid |
| 04/04/1995 | US5403898 Single arm attached cyclodextrin polysiloxanes and use thereof as chiral stationary phases in chromatographic separation of enantiomers |
| 03/30/1995 | WO1995008529A1 Chiral surfactants and methods for their use in chiral separations |
| 03/30/1995 | WO1995008522A1 Method of resolution of two enantiomers by crystallization |
| 03/22/1995 | EP0644204A1 Polysaccharide derivatives, methods of producing them and use of them |
| 03/22/1995 | EP0644189A1 Resolution of stereoisomers of aliphatic epoxides |
| 03/22/1995 | CN1100410A Process for the preparation of an optically pure aminoalcohol |
| 03/21/1995 | US5399707 Making salt of amino acid lysine, arginine or histidine with alpha-arylcarboxylic acid either by starting from second salt of anion and protonated cation of amino acid or by distilling water from amino acid-arylcarboxylic acid mixture |
| 03/15/1995 | EP0643052A2 Process for enantioselective hydrogenation of 2H-Pyran-2-one derivatives |
| 03/15/1995 | EP0642482A1 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 |
| 03/15/1995 | CN1100143A Enzymatic piperidine-2-alkyl-carboxlate and application of products therefrom |
| 03/15/1995 | CN1100094A Process for the enantioselective synthesis of alkylated oxindoles used as intermediates in the preparation of physostigmine |
| 03/08/1995 | EP0641338A1 Hypoglycemic thiazolidinediones and intermediates |
| 03/08/1995 | EP0565546B1 (-)-[[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl]-hydrazono]propanedinitrile |
| 03/07/1995 | US5395985 Compound and separating agent |
| 03/07/1995 | US5395977 Process for producing optical active 4-hydroxy-2-cyclopentenone |
| 03/07/1995 | US5395962 Optical resolution method |
| 03/07/1995 | US5395957 Separation of enantiomers of cimaterol, (-)-cimaterol and the use thereof in pharmaceutical compositions and animal feeds |
| 03/02/1995 | WO1995005879A1 Process for the separation of enantiomers |
| 02/21/1995 | US5391634 Optically-active, amphiphilic, water-soluble free-radical addition copolymers and their use in the resolution of racemic mixtures |
| 02/16/1995 | DE4413121A1 Method for separating enantiomers on chiral stationary phases by liquid chromatography in capillary columns |
| 02/15/1995 | EP0638059A1 Process for the preparation of 3(s)-methylheptanoic acid and intermediates therefor |
| 02/15/1995 | EP0638055A1 Crystallization of optical isomers of leukotriene antagonists |
| 02/08/1995 | EP0637305A1 Novel cyclic amino acids and derivatives thereof |
| 02/07/1995 | US5387695 Precipitating one of the enantiomers in the form of the salt of a chiral acid |
| 02/07/1995 | US5387338 An optical isomer separators |
| 01/31/1995 | US5386035 Method of producing optically active 1,3-imidazolidine-4-ones |
| 01/25/1995 | CN1097728A Process for preparing high antimer pure (R)-(+)-and(S)-(-)-1,1-bi-2-naphthol |
| 01/24/1995 | US5384416 Stereospecific insecticides |
| 01/18/1995 | EP0633879A1 Enantiomeric 1-phenyl-2-(2-pyridinyl)ethylamine for the treatment of neurodegenerative disorders |
| 01/11/1995 | EP0632794A1 Method for separating enantiomers of aryloxipropanolamine derivatives, and chiral solid-phase chromatography material for use in the method |
| 01/10/1995 | US5380925 Cyclic amino acids and derivatives thereof |
| 01/10/1995 | US5380867 Crystallization of salts of optically active alpha-arylcarboxy acids |
| 01/05/1995 | WO1995000492A1 Enantiomers of 4-(5-fluoro-2,3-dihydro-1h-inden-2-yl)-1h-imidazole |
| 01/05/1995 | WO1995000463A1 Optical isomer separating agent and process for producing the same |
| 01/05/1995 | CA2165459A1 Enantiomers of 4-(5-fluoro-2,3-dihydro-1h-inden-2yl)-1h- imidazole |
| 12/14/1994 | EP0565558B1 Process and intermediates for preparing azabicyclo 2.2.2]octan-3-imines |
| 12/08/1994 | WO1994028040A1 Optically-active, amphiphilic, water-soluble free-radical addition copolymers and their use in the resolution of racemic mixtures |
| 12/08/1994 | WO1994027963A1 Process for the enantioselective synthesis of intermediates used in the preparation of physostigmine |
| 12/07/1994 | EP0626976A1 Preparation of surface-functional polymer particles. |
| 12/07/1994 | EP0626965A1 Process for separating stereoisomers of folinic acid |
| 12/07/1994 | EP0626939A1 Tri-substituted phenyl derivatives as phosphodiesterase inhibitors |
| 12/06/1994 | US5371282 Salt formation with optically active amine type resolving agent, separation, hydrolysis and neutralization |
| 11/28/1994 | CA2124430A1 Process for the enantioselective synthesis of alkylated oxindoles used as intermediates in the preparation of physostigmine |
| 11/24/1994 | DE4317139A1 Process for the preparative gas-chromatographic enantiomer separation of inhalation anaesthetics (enflurane) on cyclodextrin derivatives in polysiloxane solution |
| 11/23/1994 | EP0625524A2 Polysaccharides bonded to a porous carrier, process for preparing them and their use |
| 11/23/1994 | EP0625523A1 Cis-oxalato(trans-L-1,2-cyclohexanediamine) Pt(II) complex having high optical purity and process of preparing same |
| 11/23/1994 | EP0625153A1 Novel isoindolinone derivative, preparation thereof, and pharmaceutical compositions containing same. |
| 11/23/1994 | EP0625150A1 1,3-oxathiolane nucleoside analogues |
| 11/23/1994 | EP0625137A1 Method of separating racemates of verapamil. |
| 11/17/1994 | EP0624152A1 Process for preparing ketone enantiomer. |
| 11/09/1994 | EP0623588A1 Improved process for manufacturing L-(-)-carnitine from waste products having opposite configuration |
| 11/09/1994 | EP0623107A1 Preparation of optically active aliphatic carboxylic acids. |
| 11/09/1994 | EP0623106A1 Preparation by flotation of optically active aliphatic carboxylic acids |
| 11/09/1994 | EP0623104A1 Profen resolution. |
| 10/19/1994 | EP0619816A1 A process for the resolution of (+-)-alpha-[2-[acetyl(1-methylethyl)amino]ethyl]-alpha-(2-chlorophenyl)-1-piperidinebutanamide |
| 10/18/1994 | US5357001 Optically active amino acid sulphoxide and amino acid sulphone derivatives, their preparation, their polymerisation and use as adsorbents for chromatographic resolution of racemates |
| 10/11/1994 | US5354884 Optically active N-α-fluoroacryloylamino acid derivatives for the resolution of racemates |
| 09/28/1994 | EP0617019A1 Process for the preparation of 3R,5S-(+)-sodium-erythro-(E)-7-4-(4-fluorphenyl)--2,6-diisopropyl-5-methoxymethyl-pyrid-3-yl-3,5-dihydroxy-hept-6-enoat |
| 09/28/1994 | EP0616996A1 Enantiomeric resolution of 4-(3,4-dichlorophenyl)-3,4-dihydro-1(2H)-Naphthalenone |
| 09/20/1994 | US5348656 Optically active bead polymers containing fillers |
| 09/15/1994 | WO1994020493A1 Method for preparing n-methyl 2-(3-pyridyl) (1r,2r)-2-tetrahydrothiopyrancarbothioamide-1-oxide |
| 09/15/1994 | CA2153577A1 Method for preparing n-methyl 2-(3-pyridyl)(1r,2r)-2-tetrahydrothiopyrancarbothioamide-1-oxide |
| 09/14/1994 | EP0614986A1 Enzymatic racemate cleavage of 2-pipéridine alkylcarboxylates and their use as synthesis intermediates |
| 09/14/1994 | EP0614895A1 Bis-dihydropyran derivatives and their use in chiral transformations |
| 09/14/1994 | CN1092064A Tri-substituted phenyl derivatives and processes for their preparation |
| 09/13/1994 | US5347048 Process for producing (±)-2,5,5,8a-tetramethyl-1-(carboxymethyl)-2-hydroxydecalin |
| 09/13/1994 | US5347042 Optically active sulphur-containing amino acid derivatives, their preparation, their polymerisation to give optically active polymers and the use thereof |
| 09/07/1994 | EP0613456A1 Resolution of ketoprofen |
| 09/07/1994 | EP0474854B1 Alcohol-ester separation by recrystallization |
| 09/06/1994 | US5344942 Enantiomorphs and induction |
| 09/04/1994 | CA2116833A1 Enzymatic splitting of alkyl piperidine-2-carboxylates and use of compounds obtained as synthesis intermediates |
| 08/31/1994 | EP0612716A1 Process for the preparation of an optically pure aminoalcohol |
| 08/31/1994 | EP0612322A1 Method of separating the enantiomers of 5-methyl-tetrahydrofolic acid |
| 08/31/1994 | CN1091411A Process for separating enantiomers from a racemic mixture |
| 08/30/1994 | USRE34712 Pharmaceutically useful (+)-1-(3-dimethylaminopropyl)-1-(4'-fluorophenyl)-1,3-dihydroiso benzofuran-5-carbonitrile and non-toxic acid addition salts thereof |
| 08/30/1994 | US5342934 Enantioselective receptor for amino acid derivatives, and other compounds |
| 08/24/1994 | EP0611763A1 Processing for purifying crown compounds |
| 08/17/1994 | EP0610419A1 Process and capillary columns for separating enantiomers. |
| 08/16/1994 | US5338454 Chiral mobile phase additives for improved liquid-chromatography separations |
| 08/10/1994 | EP0609310A1 N-(mercaptoacyl)amino acids, methods of their preparation and therapeutic use, and pharmaceutical compositions containing them |
| 08/10/1994 | EP0474853B1 Protected hydroxy method for alcohol-ester separation |
| 08/03/1994 | EP0608703A1 Separation material for chromatography |
| 08/03/1994 | EP0530286B1 Process for the stereoselective preparation of phenylisoserin derivatives |
| 08/02/1994 | US5334776 Aromatic diacetylenes for clathrating |
| 08/02/1994 | US5334766 Process for the resolution of racemic diphosphine oxides |
| 08/02/1994 | US5334744 Separation of isomer pair 1 and isomer pair 2 by treating in a organic solvent in presence of alkali metal cyanide |
| 08/02/1994 | US5334741 Contacting surface of substrate with phosphoramidate solution, heating to thermolyse and generate metaphosphate which phosphorylates substrate |
| 08/02/1994 | US5334730 Amidation with an 2-aminocarboxylic acid ester, cleavage the amide bond, solvent extraction to isolate |
| 08/02/1994 | US5334311 Resolution of optical isomers |