作者:Christine Willis、Stuart Crosby、Richard Sessions
DOI:10.1055/s-0029-1219372
日期:2010.3
A chemoenzymatic synthesis of a series of 2-hydroxy-5-nitro-4-substituted esters is described that uses two biotransformations in a single-pot process in which a kinetic resolution/reduction occurs. The products are valuable intermediates for the preparation of 4-substituted prolines and 5-substituted 3-hydroxypiperidinones as illustrated by the preparation of (2R,4R)-4-methylproline and (3S,5R)-3-hydroxy-5-methylpiperidinone.
描述了一种化学酶合成系列2-羟基-5-硝基-4-取代酯的过程,该过程在一个反应器中利用两种生物转化进行动力学分离/还原。所得到的产品是制备4-取代脯氨酸和5-取代3-羟基哌啶酮的宝贵中间体,如(2R,4R)-4-甲基脯氨酸和(3S,5R)-3-羟基-5-甲基哌啶酮的制备所示。