hydroxyl group thus formed by a trichloro-acetamido group via Overman rearrangement constitutes a new general route to fluoroofefin dipeptide isosteres in enantiomerically pure form. This methodology was applied for the preparation of both enantiomars of the Phe…(CFCH)Gly dipeptide mimic which were further elongated to substance P analogues.
向α-
氟代-α,β-不饱和醛中添加旋光酯烯醇,再由三
氯乙酰胺基通过超载重排形成的烯丙基羟基进行正式的S N 2'取代,构成了制备
氟代蝶呤二肽等排体的新途径呈对映体纯形式。该方法学用于制备Phe…(CFCH)Gly二
肽模拟物的两个对映体,并进一步延长为P物质类似物。