4-(1,3-diethyl-6-methyl-2,4-dioxo-5-pyrimidinyl)-L-phenylalanine methyl ester hydrochloride salt 、
2,6-二氯苯甲酰氯 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以99%的产率得到N-[(2,6-dichlorophenyl)carbonyl]-4-(1,3-diethyl-6-methyl-2,4-dioxo-5-pyrimidinyl)-L-phenylalanine methyl ester