One-Pot Transformation of Ketoximes into Optically Active Alcohols and Amines by Sequential Action of Laccases and Ketoreductases or ω-Transaminases
作者:Raquel S. Correia Cordeiro、Nicolás Ríos-Lombardía、Francisco Morís、Robert Kourist、Javier González-Sabín
DOI:10.1002/cctc.201801900
日期:2019.2.20
An enzymatic one‐pot process for asymmetric transformation of prochiral ketoximes into alcohols or amines was developed by sequential coupling of a laccase‐catalyzed deoximation either with a ketone reduction (ketoreductase, KRED) or bioamination (ω‐transaminase, ω‐TA) in aqueous medium. An accurate selection of biocatalysts provided the corresponding products in excellent enantiomeric excesses and
通过将漆酶催化的脱肟与酮还原(酮还原酶,KRED)或生物胺化(ω-转氨酶,ω-TA)相继偶联,开发了一种酶法一锅法,用于将前手性酮肟不对称转化为醇或胺。中等的。正确选择生物催化剂后,相应的产品的对映体过量非常好,醇的总转化率从83%到> 99%,胺的总转化率从70%到> 99%。同样,仅使用1%(w / w)的Cremophor®(一种聚乙氧基化蓖麻油)作为助溶剂,可使手性醇级联反应中的浓度达到100 mM。