1-tert-butyl 4-(1-(4-((2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxamido)-3-methoxybenzoyloxy)ethyl)piperazine-1,4-dicarboxylate 在
盐酸 作用下,
以
1,4-二氧六环 、
二氯甲烷 为溶剂,
以119 mg的产率得到piperazine-1-carboxylic acid 1-(4-{[(2R,3S,4R,5S)-4-(4-chloro-2-fluoro-phenyl)-3-(3-chloro2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carbonyl]-amino}-3-methoxy-benzoyloxy)-ethyl ester di-hydrochloride