are assuming increasing importance as probes of biological function and enzyme mechanism. We now report a new, flexible route to enantiomerically pure L-4,4-difluoroglutamic acid that exploits the addition of difluorinated nucleophiles to configurationally stable alpha-aminoaldehydes. Conversion of the difluorinated adducts to L-4,4-difluoroglutamic acid can be accomplished in three steps by Barton-McCombie
氨基酸的含
氟衍
生物作为
生物学功能和酶机制的探针正变得越来越重要。现在,我们报告了一条新的,灵活的途径,可生产对映体纯的L-4,4-二
氟谷
氨酸,该化合物利用向结构稳定的α-
氨基醛中添加二
氟亲核试剂。二
氟化加合物向L-4,4-二
氟谷
氨酸的转化可以通过Barton-McCombie脱羟基化和酸
水解在三个步骤中完成。