Humicola lanuginosa lipase-catalyzed resolution of heteroaryl substituted beta-hydroxy sulfides by irreversible transesterification using vinyl acetate as acylating agent is discussed. The ee of the resolved alcohols was determined from the H-1 NMR of their corresponding (S)-(+)-O-acetylmandelic acid esters. (C) 2002 Elsevier Science Ltd. All rights reserved.
Chemoenzymatic Cascades for the Enantioselective Synthesis of β‐Hydroxysulfides Bearing a Stereocentre at the C−O or C−S Bond by Ketoreductases
作者:Fei Zhao、Kate Lauder、Siyu Liu、James D. Finnigan、Simon B. R. Charnock、Simon J. Charnock、Daniele Castagnolo
DOI:10.1002/anie.202202363
日期:2022.8
Four ketoreductases (KREDs) were identified for the enantioselectivesynthesis of β-hydroxysulfides. KRED311 and KRED349 catalyse the synthesis of β-hydroxysulfides bearing a stereocentre at the C−Obond with opposite absolute configurations via chemoenzymaticcascades from thiophenols/thiols and α-haloketones/alcohols. KRED253 and KRED384 catalyse the synthesis of β-hydroxysulfides bearing a stereocentre