[EN] PREPARATION OF DULOXETINE AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS BY THE USE OF ASYMMETRIC TRANSFER HYDROGENATION PROCESS<br/>[FR] PRÉPARATION DE LA DULOXÉTINE ET DE SES SELS PHARMACEUTIQUEMENT ACCEPTABLES EN UTILISANT LE PROCÉDÉ D'HYDROGÉNATION ASYMÉTRIQUE PAR TRANSFERT
申请人:KRKA D D NOVO MESTO
公开号:WO2010003942A3
公开(公告)日:2010-07-22
Enantioselective Synthesis of (S)-γ-Amino Alcohols by Ru/Rh/Ir Catalyzed Asymmetric Transfer Hydrogenation (ATH) with Tunable Chiral Tetraaza Ligands in Water
Abstract(R/S)-γ-Amino alcohols are the key intermediates for the preparation of Fluoxetine, Atomoxetine, Nisoxetine and Duloxetine. In this paper, we describe an effective method to obtain (S)-γ-amino alcohols by Ru/Rh/Ir catalyzedasymmetric transfer hydrogenation with tunable chiral tetraaza ligands (L1–L5) in HCOONa/H2O system. The asymmetric reduction of acetophenone with [Ru(p-cymene)Cl2]2/L1
[EN] PROCESS FOR THE PREPARATION OF 3-HYDROXY-(2-THIENYL)PROPANAMINES<br/>[FR] PROCEDE DE PREPARATION DE 3-HYDROXY-(2-THIENYL)PROPANAMINES
申请人:DEGUSSA
公开号:WO2004011452A1
公开(公告)日:2004-02-05
The present invention relates to a process for the preparation of compounds of the general formula (I) by catalytic enantioselective hydrogenation of the corresponding ketones. There are used inter alia ruthenium catalysts with chiral diamines and chiral biphosphines as ligands.