Method for producing enantiomer-pure aminoalcohols
申请人:Sturmer Rainer
公开号:US20070128704A1
公开(公告)日:2007-06-07
The invention relates to a process for preparing enantiomerically pure alcohol of the formula 1, which comprises (i) reducing the ketone of the formula 3 to the racemic alcohol of the formula 4, (ii) enantioselectively acylating the racemic alcohol of the formula 4 with succinic anhydride in the presence of a lipase to give the succinic semiester of the formula 7, (iii) separating off the succinic semiester of the formula 7 from the unreacted enantiomer of the formula 4, (iv) reacting the enantiomerically pure alcohol of the formula 4 with methylamine to give the enantiomerically pure alcohol of the formula 1.
[DE] 3-METHYLAMINO-1-(2-THIENYL)-1-PROPANON, SEINE HERSTELLUNG UND VERWENDUNG<br/>[EN] 3-METHYLAMINO-1-(2-THIENYL)-1-PROPANONE, PRODUCTION AND USE THEREOF<br/>[FR] 3-METHYLAMINO-1-(2-THIENYLE)-1-PROPANONE, SA PRODUCTION ET SON UTILISATION
申请人:BASF AG
公开号:WO2004065376A1
公开(公告)日:2004-08-05
Die vorliegende Erfindung betrifft die Herstellung von 3-Methylamino-1-(2-thienyl)-1propanon und seine Verwendung zur Herstellung des Pharmazeutikums (+)-(S)-Nmethyl-3-(1-naphthyloxy)-3-(2-thienyl)propylamine oxalat - (Handelsname Duloxetine®).
Process for making duloxetine and related compounds
申请人:Pospisilik Karel
公开号:US20080171887A1
公开(公告)日:2008-07-17
A compound of formula 10 is useful in making duloxetine.
化合物的分子式为10,在制备度洛西汀中很有用。
[EN] AN IMPROVED PROCESS FOR THE PREPARATION OF DULOXETINE HYDROCHLORIDE<br/>[FR] PROCÉDÉ AMÉLIORÉ POUR LA PRÉPARATION DE CHLORHYDRATE DE DULOXÉTINE
申请人:BIOCON LTD
公开号:WO2011077443A1
公开(公告)日:2011-06-30
The present disclosure provides solution to the problem associated in the preparation of duloxetine hydrochloride. This disclosure is successful in preventing the racemization and thereby prevents the formation of unwanted isomer of duloxetine hydrochloride. In addition, the disclosure provides a simple technique for removal of unreacted reactant, 1-fluoronapthalene used as a reactant in the process to obtain (S)-(+)-N-methyl-3(1-naphthalenyloxy)-3-(2-thienyl)propanamine hydrochloride, compound of formula (VI).