(S)-3-{1-[2-Methyl-2-(2,2,2-trichloro-ethoxycarbonylamino)-propionyl]-1H-indol-3-yl}-2-(4-oxo-4H-quinazolin-3-yl)-propionic acid benzyl ester 在
palladium on activated charcoal
氢气 作用下,
以
乙酸乙酯 为溶剂,
以94%的产率得到(S)-3-{1-[2-Methyl-2-(2,2,2-trichloro-ethoxycarbonylamino)-propionyl]-1H-indol-3-yl}-2-(4-oxo-4H-quinazolin-3-yl)-propionic acid