Asymmetric Synthesis of
<i>N</i>
‐Substituted γ‐Amino Esters and γ‐Lactams Containing α,γ‐Stereogenic Centers via a Stereoselective Enzymatic Cascade
作者:Ming Li、Yunfeng Cui、Zefei Xu、Xi Chen、Jinhui Feng、Min Wang、Peiyuan Yao、Qiaqing Wu、Dunming Zhu
DOI:10.1002/adsc.202100953
日期:2022.1.18
esters and γ-lactams containing α,γ-stereogenic centers are widely used as chiral intermediates in various bioactive compounds, while their efficient synthesis remains a challenge. Herein, an enzymatic cascade reaction involving an ene reductase (ERED) and an imine reductase (IRED) for accessing to α,γ-stereospecific γ-amino esters and γ-lactams from α,β-unsaturated γ-ketoesters has been developed
含有α,γ-立体中心的γ-氨基酯和γ-内酰胺被广泛用作各种生物活性化合物的手性中间体,而它们的有效合成仍然是一个挑战。本文开发了一种涉及烯还原酶 (ERED) 和亚胺还原酶 (IRED) 的酶级联反应,用于从 α,β-不饱和 γ-酮酯中获得 α,γ-立体特异性 γ-氨基酯和 γ-内酰胺。已鉴定出 21 个 ERED 和 13 个 IRED,分别对各种 α,β-不饱和 γ-酮酯和相应的手性 γ-酮酯具有高活性和立体选择性。通过采用合适的 ERED 和 IRED,(1 S ,3 S )、(1 S ,3 R )、(1 R ,3 S ) 和 (1 R,3 R ) 3-(环丙基氨基) 环己烷-1-羧酸甲酯的立体异构体作为单一立体异构体以 63–72% 的收率获得, (3 R ,5 R )- 和 (3 R ,5 S )-1 -环丙基-3,5-二甲基吡咯烷-2-一和1-环丙基-3,5-二丙基吡咯烷-2-