[EN] PROCESS FOR PREPARING DULOXETINE HYDROCHLORIDE<br/>[FR] PROCÉDÉ D'ÉLABORATION DE CHLORHYDRATE DE DULOXÉTINE
申请人:CADILA HEALTHCARE LTD
公开号:WO2008081476A2
公开(公告)日:2008-07-10
[EN] Enantiomerically pure S-(+)-duloxetine hydrochloride with high purity as determined by area percentage of HPLC are disclosed. Also disclosed are improved process for preparing duloxetine hydrochloride of formula (I). [FR] La présente invention concerne un chlorhydrate de S-(+)-duloxétine énantiomériquement pure, d'un degré levé de pureté tel que l'atteste le pourcentage de superficie de la chromatographie en phase liquide à haute performance (HPLC). L'invention concerne également une amélioration d'un procédé d'élaboration de chlorhydrate de duloxétine représenté par la formule (I).
Experimental and computational evidence on gold-catalyzed regioselective hydration of phthalimido-protected propargylamines: an entry to β-amino ketones
between the propargyl triple bond and the Au(I) catalyst, in particular the character of the gold-triple bond interaction, are essential for the observed regioselectivity. Other effects, such as the presence of the solvent and the formation of a H-bond between the water molecule and the phthalimido moiety, although apparently irrelevant for the regioselectivity, have proven to be kinetically and catalytically