Enzymatic desymmetrization of meso cis-2,6- and cis,cis-2,4,6-substituted piperidines. Chemoenzymatic synthesis of (5S,9S)-(+)-indolizidine 209D
作者:Robert Chênevert、Ghodsi Mohammadi Ziarani、Marie Pascale Morin、Mohammed Dasser
DOI:10.1016/s0957-4166(99)00315-8
日期:1999.8
The stereoselective acylation of meso piperidines 3a,b by vinyl acetate (solvent and acyl donor) in the presence of Candida antarctica lipase gave the corresponding (2S,6R) and (2S,4R,6R) monoesters 2a,b in high enantiomeric purity. (5S,9S)-(+)-Indolizidine 209D was prepared in eight steps from (2S,6R)-2a. (C) 1999 Elsevier Science Ltd. All rights reserved.