Engineering a Transaminase for the Efficient Synthesis of a Key Intermediate for Rimegepant
作者:Yulei Ma、Xuecheng Jiao、Zujian Wang、Huiyan Mu、Kaihua Sun、Xiang Li、Tong Zhao、Xufeng Liu、Na Zhang
DOI:10.1021/acs.oprd.1c00376
日期:2022.7.15
Transaminases have been increasingly utilized as efficient biocatalysts in the synthesis of pharmaceutical intermediates, but a major drawback is their poor substrate acceptance, especially the limitation for the synthesis of sterically hindered chiral amines. Herein we report the engineering of a transaminase that can convert the ketone (6S,9R)-6-(2,3-difluorophenyl)-9-hydroxy-6,7,8,9-tetrahydro-
转氨酶越来越多地被用作合成药物中间体的高效生物催化剂,但其主要缺点是其底物接受性差,尤其是限制了空间位阻手性胺的合成。在这里,我们报告了一种转氨酶的工程,它可以转化酮 (6 S ,9 R )-6-(2,3-difluorophenyl)-9-hydroxy-6,7,8,9-tetrahydro-5 H -cyclohepta[ b ]pyridin-5-one to (5 S ,6 S ,9 R )-5-amino-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5 H -cyclohepta[ b]pyridin-9-ol,一种合成 rimegepant 的关键中间体,一种 CGRP 拮抗剂,用于治疗偏头痛。从对所需酮没有可检测活性的酶骨架开始,合理的设计方法使我们能够生产具有可检测微量活性的酶变体。然后,通过遵循各种进化策略,包括以关键循环为重点的迭