(2S)-2-tertiary butyloxycarbonylamino-3-[4-(2,4-dioxo-1,3-dihydroquinazoline-3-yl) phenyl] propionic acid methylester 、
碘甲烷 在
potassium carbonate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 1.0h,
生成
(2S)-2-tertiary butyloxycarbonylamino-3-[4-(1-methyl-2,4-dioxo-1,3-dihydroquinazoline-3-yl) phenyl] propionic acid methylester