Exploiting the Biocatalytic Toolbox for the Asymmetric Synthesis of the Heart-Rate Reducing Agent Ivabradine
作者:Sandrine Pedragosa-Moreau、Alexandre Le Flohic、Vivien Thienpondt、François Lefoulon、Anne-Marie Petit、Nicolás Ríos-Lombardía、Francisco Morís、Javier González-Sabín
DOI:10.1002/adsc.201601222
日期:2017.2.2
ivabradine. Lipases and ω‐transaminases have been identified as useful biocatalysts for the preparation of key enantiopure precursors. The lipase‐catalysed kinetic resolution by alkoxycarbonylation of a racemic primary amine and subsequent chemical reduction of the resulting carbamate provided an N‐methylated (S)‐amine, one step away from ivabradine. Alternatively, the dynamic kinetic resolution by asymmetric
已经评估了几种化学酶促途径来生产心律降低剂伊伐布雷定。脂肪酶和ω-转氨酶已被确认为制备关键对映体纯前体的有用生物催化剂。外消旋伯胺的烷氧基羰基化反应经脂肪酶催化的动力学拆分,随后对所得氨基甲酸酯进行化学还原,得到了N-甲基化(S)-胺,距离伊伐布雷定一步之遥。或者,通过醛前体的不对称生物胺化进行动态动力学拆分,可按四步顺序以50%的总收率制备对映体纯的伊伐布雷定的规模规模合成。