A new process for preparing alfa-L-aspartyl-L-phenylalanine alkyl esters of formula I
wherein R represents an alkyl group having from 1 to 5 carbon atoms, starting from the corresponding alfa-haloacyl-alfa-L-aspartyl-L-phenylalanine alkyl esters.
从相应的α-卤酰基-α-L-天冬
氨酰-
L-苯丙氨酸烷基酯开始,制备式 I 的α-L-天冬
氨酰-
L-苯丙氨酸烷基酯的新工艺,其中 R 代表具有 1 至 5 个碳原子的烷基。