4-[2(R)-tert-Butoxycarbonylamino-3-triphenylmethylthiopropyl]-2(S)-n-butyl-1-(2,3-dimethylbenzoyl)piperazine 、
三乙基硅烷 、
三氟乙酸 、
二氯甲烷 在
4-[2(R)-Amino-3-mercaptopropyl]-2(S)-n-butyl-1-(2,3-dimethylbenzoyl)piperazine dihydrochloride 、 crude product 、 Solvent A 、 Solvent B 作用下,
以After ion exchange and lyophilization, the title compound was obtained as a white powder (0.127 g)的产率得到4-[2(R)-Amino-3-mercaptopropyl]-2(S)-n-butyl-1-(2,3-dimethylbenzoyl)piperazine dihydrochloride