作者:Steven D. Bull、Stephen G. Davies、Andrew D. Smith
DOI:10.1039/b107440g
日期:2001.11.15
Addition of two or three equivalents of lithium (S)-N-benzyl-N-α-methylbenzylamide to conjugate acceptors containing two or three α,β-unsaturated ester fragments respectively and subsequent hydrogenolytic deprotection afford homochiral bis- or tris-β-amino esters containing two or three new stereogenic centres in high de and ee.
将两个或三个当量的(S)-N-苄基-N-δ-甲基苄基酰胺锂分别加入到含有两个或三个δ,δ-不饱和酯片段的共轭受体中,然后进行氢解脱保护,就能以高de和ee得到含有两个或三个新立体中心的同手性双δ-或三δ-氨基酯。