{[((S)-2-Amino-2-phenyl-acetyl)-methyl-amino]-methyl}-carbamic acid 2,5-dioxo-pyrrolidin-1-yl ester; compound with trifluoro-acetic acid 在
polymer-supported diisopropylethylamine 作用下,
以
二氯甲烷 为溶剂,
以67%的产率得到(S)-5-Methyl-7-phenyl-[1,3,5]triazepane-2,6-dione