A novel process for the asymmetric synthesis of an amino-pyrrolidinone of the type shown below from appropriate pyrrolidinones is described.
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These compounds are useful as intermediates for MMP and TACE inhibitors.
[EN] ASYMETRIC SYNTHESIS OF AMINO-PYRROLIDINONES<br/>[FR] SYNTHESE ASYMETRIQUE D'AMINO-PYRROLIDINONES
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2003104220A1
公开(公告)日:2003-12-18
A novel process for the asymmetric synthesis of an amino-pyrrolidinone of the
type shown below from appropriate pyrrolidinones is described. [Insert Chemical
Formula] These compounds are useful as intermediates for MMP and TACE inhibitors.
Quaternary Chiral Center <i>via</i> Diastereoselective Enolate Amination Enables the Synthesis of an Anti-inflammatory Agent
作者:Nicholas A. Magnus、Silvio Campagna、Pat N. Confalone、Scott Savage、David J. Meloni、Robert E. Waltermire、Robert G. Wethman、Mathew Yates
DOI:10.1021/op900255k
日期:2010.1.15
employed as a chiral directing group for a diastereoselectiveenolate amination to establish the quaternary chiral center. Enhanced diastereomeric ratios were observed while conducting the enolate amination with 1-chloro-1-nitrosocyclopentane 6 in the presence of LiCl. Analogies are drawn between known tertiary amide amino alcohol chiral auxiliaries which have been used to effect diastereoselective enolate