N-p-Chlorbenzoyl-β-(p-anisidino)-propionsaeure 、
γ-(p-Anisidino)-buttersaeuremethylester 以produces methyl N-[N-(p-chlorobenzoyl)-3-(p-anisidino)propionyl]-4-(p-anisidino)butyrate (oil), saponification of which and processing of the reaction product的产率得到methyl N-[N-(p-chlorobenzoyl)-3-(p-anisidino)propionyl]-4-(p-anisidino)butyrate