Semi-rational design of an imine reductase for asymmetric synthesis of alkylated<i>S</i>-4-azepanamines
作者:Fangfang Zhu、Jun Zhang、Yaqing Ma、Lujia Yang、Qiang Gao、Shushan Gao、Chengsen Cui
DOI:10.1039/d3ob00442b
日期:——
(IRED)-catalyzed reductive amination is promising for the synthesis of alkylated chiral amines, precisely regulating the stereoselectivity of IRED remains a great challenge. Herein, focusing on the residues directly in contact with the ketone moiety, we applied structure-guided semi-rational design to obtain the triple-mutant I149Y/L200H/W234K. This mutant showed high stereoselectivity, of up to >99%