Development of an<i>R</i>-Selective Amine Oxidase with Broad Substrate Specificity and High Enantioselectivity
作者:Rachel S. Heath、Marta Pontini、Beatrice Bechi、Nicholas J. Turner
DOI:10.1002/cctc.201301008
日期:2014.4
Amine oxidases are useful bio‐catalysts for the synthesis of enantiomerically pure 1°, 2° and 3° chiral amines. Enzymes in this class (e.g., MAO‐N from Aspergillus niger) reported previously have been shown to be highly S selective. Herein we report the development of an enantiocomplementary R‐selective amine oxidase based on 6‐hydroxy‐D‐nicotine oxidase (6‐HDNO) with broadened substrate scope and
Combined Imine Reductase and Amine Oxidase Catalyzed Deracemization of Nitrogen Heterocycles
作者:Rachel S. Heath、Marta Pontini、Shahed Hussain、Nicholas J. Turner
DOI:10.1002/cctc.201500822
日期:2016.1
novel amineoxidase (AO)/iminereductase (IRED) system was developed for the deracemization of racemic amines. By combining (R)‐6‐hydroxy‐d‐nicotine oxidase (6‐HDNO) with an (R)‐IRED, a panel of racemic 2‐substituted piperidines and pyrrolidines were deracemized to yield the (S)‐amines in high yields and enantiomeric excess values. Other N‐heterocycles were deracemized with monoamine oxidase (MAO‐N)