Asymmetric Amination of α-Chiral Aliphatic Aldehydes <i>via</i>
Dynamic Kinetic Resolution to Access Stereocomplementary Brivaracetam and Pregabalin Precursors
作者:Christine S. Fuchs、Judith E. Farnberger、Georg Steinkellner、Johann H. Sattler、Mathias Pickl、Robert C. Simon、Ferdinand Zepeck、Karl Gruber、Wolfgang Kroutil
DOI:10.1002/adsc.201701449
日期:2018.2.15
numerous α‐chiral, optically pure amines, serving as important building blocks for APIs. Here we elaborate on the development of transaminases recognizing the α‐chiral centre adjacent to an aldehyde moiety with aliphatic residues, opening up concepts for novel synthetic routes to the antiepileptic drugs Brivaracetam and Pregabalin. The transformation proceeded via dynamic kinetic resolution (DKR) based
在过去的几十年中,生物催化已经成为活性药物成分(API)不对称合成的必不可少且用途广泛的工具。在这种情况下,尤其是转氨酶(TAs)已成功用于制备多种α-手性,光学纯胺,是API的重要组成部分。在这里,我们详细介绍了转氨酶的开发,该酶识别具有脂肪族残基的醛部分附近的α-手性中心,为抗癫痫药Brivaracetam和Pregabalin的新颖合成路线开辟了概念。转型通过动态动力学拆分(DKR)基于醛对映异构体的生物诱导外消旋作用,可实现外消旋底物的定量转化胺化。介质,底物和酶工程技术都可以以高光学纯度获得立体互补药物胺前体的(R)和(S)对映体。