Highly diastereoselective synthesis and template manipulation of the thiazolo[2,3-a]isoindolin-1-one ring system
作者:Steven M Allin、Darshan G Vaidya、Michael I Page、Alexandra M.Z Slawin、Tim Smith
DOI:10.1016/s0040-4039(00)00128-3
日期:2000.3
Condensation of 2-acetyl benzoic acid with l-cysteine esters proceeds with extremely high diastereoselectivity to produce the desired thiazolo[2,3-a]isoindolin-1-one products in good yield. The relative stereochemistry of the major diastereoisomer has been determined by X-ray crystallography. Stereoselectiveenolate alkylation of this substrate has been investigated as a method to manipulate the ring
2-乙酰基苯甲酸与L-半胱氨酸酯的缩合以极高的非对映选择性进行,以高收率生产所需的噻唑并[2,3 - a ]异吲哚啉-1-酮产物。主要的非对映异构体的相对立体化学已通过X射线晶体学测定。已经研究了该底物的立体选择性烯酸酯烷基化作为操纵环骨架的方法,并且发现其可进行至排他的立体选择性水平。