Hexafluoroacetone as Protection and Activation Reagent in Amino Acid and Peptide Chemistry. Regiospecific a-Functionalization of Aspartic Acid
作者:Klaus Burger、Torsten Lange、Martin Rudolph
DOI:10.3987/com-02-s17
日期:——
A highly efficient method for regiospecific alpha-functionalization of aspartic acid is described. Key step is the synthesis of a N-protected and regioselectively alpha-carboxy-activated heterocyclic intermediate from aspartic acid and hexafluoroacetone. The new strategy offers La. a two step access to the sweetener Aspartame(R) and to libraries of aspartame analogues.