t-butyl α-{6(R)-[1(S)-ethoxycarbonyl-3-phenylpropylamino]-5-oxo-3(R)-phenylperhydro-1,4-thiazepin-4-yl}acetate 在
盐酸 作用下,
以
1,4-二氧六环 为溶剂,
反应 16.0h,
以81%的产率得到(S)-2-((3R,6R)-4-Carboxymethyl-5-oxo-3-phenyl-[1,4]thiazepan-6-ylamino)-4-phenyl-butyric acid ethyl ester; hydrochloride