| Patents for C07B 53 - Asymmetric syntheses (6,231) |
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| 10/06/1999 | EP0946570A1 Process for the preparation of an organozinc reagent |
| 10/06/1999 | CN1045436C Preparation of pyridinemethanol derivative |
| 09/30/1999 | WO1999032225A9 Catalytic composition based on chiral ligands with molybdenum, tungsten or chromium and method for asymmetric alkylation of allylic substrates |
| 09/29/1999 | EP0945457A2 Ruthenium-phosphine complex and method for producing the same |
| 09/29/1999 | CN1230176A Stereospecific prepn. of chiral 1-aryl- and 1-heteroaryl-2-substituted ethyl-2-amines |
| 09/29/1999 | CN1230171A Optically active erhtyro-3-amino-2-hydroxybutyric esters and process for preparing said esters |
| 09/28/1999 | US5959139 Process for producing optically active 2-hydroxy-4-arylbutyric acid or its ester |
| 09/28/1999 | CA2176500C Process for preparing a chiral tetralone |
| 09/23/1999 | WO1999047530A1 1-phosphanorbornadienes |
| 09/23/1999 | WO1999047475A1 Method for separating a diphosphine diastereoisomers |
| 09/23/1999 | CA2322986A1 Method for separating a diphosphine diastereoisomers |
| 09/22/1999 | EP0942900A1 Stereospecific preparation of chiral 1-aryl- and 1-heteroaryl-2-substituted ethyl-2-amines |
| 09/22/1999 | CN1229080A Processes for preparing intermediate product used in method of diastereoselective syntheses of nucleosides |
| 09/22/1999 | CN1229079A Processes for preparing intermediate product used in method of diastereoselective syntheses of nucleosides |
| 09/22/1999 | CN1229078A Processes for preparing intermediate product used in method of diastereoselective syntheses of nucleosides |
| 09/21/1999 | CA2152269C Process for preparing substituted 1,3-oxathiolanes with antiviral properties |
| 09/16/1999 | WO1999046252A1 Process for producing oxazolidin-2-one derivatives |
| 09/16/1999 | DE19900172A1 Preparation of L-4-boronophenylalanine comprises hydrogenation of new aryl borate compounds in the presence of a palladium-based catalyst, useful for the treatment of skin cancer and brain tumors |
| 09/15/1999 | EP0941231A1 Heteroarylic-arylic diphosphines as chiral ligands |
| 09/15/1999 | EP0941228A1 PROCESS FOR PREPARING MeO-Peg-PROTECTED DIHYDROQUININE OR DIHYDROQUINIDINE DERIVATIVES, DIHYDROQUININE OR DIHYDROQUINIDINE DERIVATIVES AND THEIR USE |
| 09/14/1999 | US5952507 Process for manufacture of chiral succinic acid derivatives |
| 09/14/1999 | US5952375 Compounds and methods for synthesis and therapy |
| 09/08/1999 | EP0940383A2 Method for the selective alkylation of aldehydes with organozinc compounds |
| 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 | EP0938488A1 Phosphine ligands |
| 08/26/1999 | WO1999024443A3 Catalysts for asymmetric synthesis containing rigid chiral ligands |
| 08/25/1999 | EP0751934B1 Substituted azetidinone compounds useful as hypocholesterolemic agents |
| 08/25/1999 | EP0662952B1 Process for the stereoselective synthesis of 3-substituted 2-sulphonyl methyl propionic acids and intermediate products |
| 08/24/1999 | US5942646 Trifluoromethylhydroxyalkyl fluoroalkyl ethers; liquid crystals |
| 08/17/1999 | CA2002483C Fluoxetine analog |
| 08/11/1999 | EP0934923A1 Optically active erythro-3-amino-2-hydroxybutyric esters and process for preparing said esters |
| 08/10/1999 | US5936127 Asymmetric synthesis and catalysis with chiral heterocyclic compounds |
| 08/10/1999 | US5936125 Process for the preparation of 5,6-dihydroxy-2-amino-1,2,3,4-tetrahydronaphthalene derivatives |
| 08/10/1999 | US5936109 Ligands for asymmetric catalysis |
| 08/10/1999 | US5935892 Supported phase catalyst |
| 08/05/1999 | WO1999038828A1 Process for producing butanetriol derivative |
| 08/05/1999 | WO1999038824A1 Method for producing optically active alcohols |
| 08/05/1999 | DE19803893A1 Verfahren zur Herstellung von optisch aktiven Alkoholen Process for the preparation of optically active alcohols |
| 08/05/1999 | CA2319418A1 Processes for preparing butanetriol derivatives |
| 08/03/1999 | US5932744 Process for the preparation of cis-hexahydroisoindoline derivatives |
| 07/29/1999 | DE19809341C1 Mixed dialkylzinc compounds used in enantioselective alkylation of aldehydes |
| 07/28/1999 | EP0918781A4 Asymmetric synthesis catalyzed by transition metal complexes with cyclic chiral ligands |
| 07/28/1999 | EP0820460B1 Dihalogenated ferrocenes and processes for the preparation thereof |
| 07/27/1999 | US5929266 Chiral organometallic compounds |
| 07/27/1999 | US5929265 Binuclear iridium(I) phosphine complexes and their use as catalyst in the asymmetric hydroamination of olefins |
| 07/27/1999 | US5929232 Stereoselective ring opening reactions |
| 07/22/1999 | WO1999036375A1 Asymmetric cycloaddition reactions |
| 07/22/1999 | WO1999021830A8 Process for stereoselective synthesis of prostacyclin derivatives |
| 07/21/1999 | EP0929560A1 Chiral ferrocenyls |
| 07/21/1999 | EP0749406B1 Process for the preparation of optically active cycloolefins |
| 07/20/1999 | US5925792 Process for preparing 2-amino-1,3-alkanediol or derivative thereof, process for preparing optically active dihydrosphingosine derivative, and intermediates for optically active dihydrosphingosine derivative |
| 07/20/1999 | US5925778 Dihalogenated ferrocenes and processes for the preparation thereof |
| 07/14/1999 | EP0928287A1 Ionic compounds with delocalized anionic charge, their use as components of ionic conductors or catalyst |
| 07/14/1999 | EP0770057B1 Method for producing calcium salts of [s,s]-ethylenediamine-n,n'-disuccinic acid |
| 07/14/1999 | EP0770054B1 A method for producing [s,s]-ethylenediamine-n,n'-disuccinic acid from its calcium salt |
| 07/14/1999 | EP0664799B1 Amide derivatives |
| 07/07/1999 | EP0927152A1 Method for preparing optically active alpha-substituted benzylalcohols |
| 07/07/1999 | CN1222140A Method for producing optically active 1-phenylethylamines |
| 07/06/1999 | US5919962 Process for preparing ruthenium-phosphine complex |
| 07/06/1999 | US5919961 Metal compounds of cyclopentadienes, enantioselective hydrogenation of imines. |
| 07/01/1999 | WO1999032225A2 Catalytic composition based on chiral ligands with molybdenum, tungsten or chromium and method for asymmetric alkylation of allylic substrates |
| 07/01/1999 | CA2309661A1 Catalytic composition based on chiral ligands with molybdenum, tungsten or chromium and method for asymmetric alkylation of allylic substrates |
| 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 |
| 06/29/1999 | US5916897 Process for the preparation of 9-amino camptothecin |
| 06/16/1999 | CN1043645C New benzothiadiazine compound, process for its preparation and pharmaceutical compositions which contain it |
| 06/09/1999 | EP0920410A1 Preparation of cyclohexene carboxylate derivatives |
| 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 | EP0918781A1 Asymmetric synthesis catalyzed by transition metal complexes with cyclic chiral ligands |
| 06/02/1999 | EP0918779A1 Chiral organoboranes |
| 06/02/1999 | CN1218448A Cycloalkyl derivatives and solid-phase synthesis thereof |
| 06/01/1999 | CA2021737C Asymmetric synthesis of furo ¬3,4-c| pyridine derivatives |
| 06/01/1999 | CA1340570C Process for synthesizing n-alkylated amino-acides and the esters thereof. their use for synthesizing carboxyalkyl dipeptides |
| 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 |
| 05/26/1999 | CN1217722A Process for preparing pyrimidine derivatives |
| 05/26/1999 | CN1217710A 'gamma'-oxo-homophenylalanine derivative and process for producing homophenylalanine derivatives by reducing same |
| 05/25/1999 | US5907039 Amino alcohol derivative and method for preparing the same |
| 05/20/1999 | WO1999024443A2 Catalysts for asymmetric synthesis containing rigid chiral ligands |
| 05/20/1999 | WO1999024410A1 Transition metal-catalyzed reactions based on chiral amine oxazolinyl ligands |
| 05/20/1999 | CA2309193A1 Catalysts for asymmetric syntheses containing rigid chiral ligands |
| 05/20/1999 | CA2308415A1 Transition metal-catalyzed reactions based on chiral amine oxazolinyl ligands |
| 05/19/1999 | CN1043425C Sub-salicylic amino transition metal compounding agent and it mfg. method |
| 05/18/1999 | US5905167 Hydrolysis in presence of polyol or amino alcohol and alkali or alkaline earth metal hydroxide; resolution; retention of chirality |
| 05/12/1999 | EP0583433B1 Diphosphine ligands |
| 05/06/1999 | WO1999021830A1 Process for stereoselective synthesis of prostacyclin derivatives |
| 05/06/1999 | EP0912583A1 Ligands for asymmetric catalysis |
| 05/06/1999 | EP0912467A1 Asymmetric hydrogenation method of a ketonic compound and derivative |
| 05/06/1999 | CA2847985A1 Process for stereoselective synthesis of prostacyclin derivatives |
| 05/06/1999 | CA2307163A1 Process for stereoselective synthesis of prostacyclin derivatives |
| 04/27/1999 | US5898076 Process for preparing 1-pyruvyl-L-proline |
| 04/21/1999 | EP0909762A2 Binuclear Iridium(I) phosphine complexes and their use as catalysts for the asymmetric hydroamination of olefins |
| 04/21/1999 | EP0579797B1 Diphosphine ligands |
| 04/14/1999 | CN1213663A Process for manufacture of chiral succinic acid derivatives of formula |
| 04/07/1999 | EP0906325A1 Dendrimers based on saccharides |
| 04/07/1999 | EP0906267A1 Method for producing optically active 1-phenylethylamines |
| 04/03/1999 | CA2247580A1 Process for preparing chiral succinic acid derivatives |
| 04/01/1999 | WO1999015481A1 Asymmetric hydrogenation |
| 03/31/1999 | EP0796239B1 Process for the preparation of enantiomerically pure (s,s) aminoepoxides, key intermediates for hiv protease inhibitors, via their chlorohydrines |
| 03/25/1999 | WO1999014184A1 Novel stereoselective processes for the preparation of gabapentin analogues |
| 03/24/1999 | EP0766662A4 Asymmetric synthesis of (r)- and (s)-arylethanolamines from iminoketones |
| 03/23/1999 | US5886181 Asymmetric hydrogenation of the corresponding 1,4,5,6-tetrahydropyrazines |