Heterocycles 35. CaL-B mediated synthesis of enantiomerically pure (R)- and (S)-ethyl 3-(2-arylthiazol-4-yl)-3-hydroxypropanoates
作者:Annamária Varga、Mara Ana Naghi、Melinda Füstös、Gabriel Katona、Valentin Zaharia
DOI:10.1016/j.tetasy.2014.01.013
日期:2014.2
Herein we present the lipase catalyzed synthesis of four new enantiomerically pure (R)- and (S)-ethyl 3-(2-arylthiazol-4-yl)-3-hydroxypropanoates and their butanoates by enzymatic enantioselective acylation of the racemicalcohols rac-1a–d and by ethanolysis of the corresponding racemic esters rac-2a–d mediated by lipase B from Candida antarctica (CaL-B) in organic solvents. In terms of stereoselectivity