Fluorescence-Based Screening of Asymmetric Acylation Catalysts through Parallel Enantiomer Analysis. Identification of a Catalyst for Tertiary Alcohol Resolution
作者:Elizabeth R. Jarvo、Catherine A. Evans、Gregory T. Copeland、Scott J. Miller
DOI:10.1021/jo015803z
日期:2001.8.1
A technique for high-throughput screening of kinetic resolution catalysts is reported. The method relies on carrying simultaneous kinetic resolutions in a multiwell plate format wherein each well contains a unique catalyst and a small amount of a pH-activated fluorescent sensor (3). By conducting experiments such that each catalyst is evaluated in parallel in the presence of each isolated enantiomer
报道了用于动力学拆分催化剂的高通量筛选的技术。该方法依赖于以多孔板形式同时进行动力学拆分,其中每个孔均包含独特的催化剂和少量的pH激活的荧光传感器(3)。通过进行实验,使得在每种分离的对映异构体的存在下并行评估每种催化剂,以每个对映异构体为基础获得催化剂活性的指示。然后,以常规动力学分辨率重新评估对一种对映异构体具有高活性但对另一种对映异构体具有适度活性的催化剂。从这些筛选中,获得了模型仲醇(1)的高选择性(k(rel)= 46)五肽(4)。此外,发现肽10具有出色的选择性(k(rel)>