An efficient synthesis of (S)-3-aminomethyl-5-methylhexanoic acid (Pregabalin) via quinine-mediated desymmetrization of cyclic anhydride
摘要:
A highly enantioselective synthesis of (S)-3-aminomethyl-5-methylhexanoic acid 1 (Pregabalin) is reported. The key step of the synthesis is a quinine-mediated ring opening of 3-isobutylglutaric anhydride with cinnarryl alcohol. A Curtius rearrangement and subsequent deprotection provides 1 in high yield and excellent enantiomeric excess. (c) 2007 Elsevier Ltd. All rights reserved.
[EN] PROCESS FOR PREPARING PREGABALIN AND ITS OPPOSITE ENANTIOMER<br/>[FR] PROCÉDÉ DE PRÉPARATION DE LA PRÉGABALINE ET DE SON ÉNANTIOMÈRE OPPOSÉ
申请人:PLIVA ISTRAZIVANJE I RAZVOJ D
公开号:WO2008009897A1
公开(公告)日:2008-01-24
[EN] The invention relates to the preparation of pregabalin and its opposite enantiomer, or a pharmaceutically-acceptable salt of either thereof, and to the intermediates used for their preparation. [FR] L'invention concerne la préparation de la prégabaline et de son énantiomère opposé, ou d'un sel pharmaceutiquement acceptable de n'importe lequel de ces composés, et les composés intermédiaires utilisés dans leur préparation.
WO2008/9897
申请人:——
公开号:——
公开(公告)日:——
An efficient synthesis of (S)-3-aminomethyl-5-methylhexanoic acid (Pregabalin) via quinine-mediated desymmetrization of cyclic anhydride
作者:Zdenko Hameršak、Irena Stipetić、Amir Avdagić
DOI:10.1016/j.tetasy.2007.06.014
日期:2007.7
A highly enantioselective synthesis of (S)-3-aminomethyl-5-methylhexanoic acid 1 (Pregabalin) is reported. The key step of the synthesis is a quinine-mediated ring opening of 3-isobutylglutaric anhydride with cinnarryl alcohol. A Curtius rearrangement and subsequent deprotection provides 1 in high yield and excellent enantiomeric excess. (c) 2007 Elsevier Ltd. All rights reserved.