(R)-4-(3-{3-[2-oxo-1-(2-oxo-2-pyrrolidin-1-ylethyl)-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-yl]ureido}benzyloxycarbonylamino)butyric acid methyl ester 在
lithium hydroxide 作用下,
以
甲醇 为溶剂,
反应 16.0h,
以1.64 g的产率得到(R)-4-(3-{3-[2-oxo-1-(2-oxo-2-pyrrolidin-1-ylethyl)-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-yl]ureido}benzyloxycarbonylamino)butyric acid