Structure, Activity and Stereoselectivity of NADPH-Dependent Oxidoreductases Catalysing the<i>S</i>-Selective Reduction of the Imine Substrate 2-Methylpyrroline
作者:Henry Man、Elizabeth Wells、Shahed Hussain、Friedemann Leipold、Sam Hart、Johan P. Turkenburg、Nicholas J. Turner、Gideon Grogan
DOI:10.1002/cbic.201402625
日期:2015.5.4
production of chiral amines: The structures of imine reductases (IREDs) from B. cereus and N. halophila that are S‐selective for the reduction of 2‐methylpyrroline (2MPN) reveal conservation of residues in this IRED subgroup. These structures permit comparison with those of IREDs that are R‐selective for 2MPN reduction, revealing structural differences in the active sites.
The non-enzymatic kinetic resolution of diversely substituted primary propargylic amines is reported featuring a highly selective acetyl transfer using (1S,2S)-1 in conjunction with AliquatTM 336, affording the corresponding enantio-enriched N-acetylated propargylic amines with unprecedented levels of selectivity (s-factors of up to 193 at 50% conversion).