PROCESS FOR PREPARING ALPHA-L-ASPARTYL-L-PHENYLALANIN METHYL ESTER

摘要

The title compd. (I) was prepd. by salting-out. Thus, N- formyl-alpha-L-aspartyl-L- phenylalanine is added in water or organic solvents containing methanol and phosphoric acid, and (I) is obtd. by deformylization and methylesterification. The method enhanced purity and yield.