Highly optically active threo-β-hydroxy-α-amino acids were obtained by the successive treatment of the chiral hydroxy imine 1, prepared by the condensation of t-butyl glycinate with a chiral ketol 3, with methylmagnesium iodide, potassium diisopropylamide and aldehyde.
通过手性羟基
亚胺 1 的连续处理获得高旋光性的 threo-β-羟基-
α-氨基酸,该手性羟基
亚胺 1 是由
甘氨酸叔丁酯与手性酮醇 3 与
甲基碘化镁、
二异丙基酰胺
钾和醛缩合制备的。