三氟乙酸 、
[(S)-1-(3-{3,5-Bis-[3-((S)-2-tert-butoxycarbonylamino-4-methylsulfanyl-butyrylamino)-propyl]-phenyl}-propylcarbamoyl)-3-methylsulfanyl-propyl]-carbamic acid tert-butyl ester 以
various solvents 为溶剂,
反应 1.0h,
以98.8%的产率得到(S)-2-Amino-N-(3-{3,5-bis-[3-((S)-2-amino-4-methylsulfanyl-butyrylamino)-propyl]-phenyl}-propyl)-4-methylsulfanyl-butyramide; compound with trifluoro-acetic acid