[EN] PREPARATION OF DULOXETINE AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS BY THE USE OF ASYMMETRIC TRANSFER HYDROGENATION PROCESS [FR] PRÉPARATION DE LA DULOXÉTINE ET DE SES SELS PHARMACEUTIQUEMENT ACCEPTABLES EN UTILISANT LE PROCÉDÉ D'HYDROGÉNATION ASYMÉTRIQUE PAR TRANSFERT
[EN] PREPARATION OF DULOXETINE AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS BY THE USE OF ASYMMETRIC TRANSFER HYDROGENATION PROCESS [FR] PRÉPARATION DE LA DULOXÉTINE ET DE SES SELS PHARMACEUTIQUEMENT ACCEPTABLES EN UTILISANT LE PROCÉDÉ D'HYDROGÉNATION ASYMÉTRIQUE PAR TRANSFERT
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