Nα-tert-butoxycarbonylisoleucyl-histydyl-<2-(3-aminopyrrolidin-2-on-1-yl)-3-phenylpropanoic acid> p-nitrobenzylester 在
三氟乙酸 作用下,
反应 1.0h,
以285 mg的产率得到2-{3-[(S)-2-((2S,3S)-2-Amino-3-methyl-pentanoylamino)-3-(1H-imidazol-4-yl)-propionylamino]-2-oxo-pyrrolidin-1-yl}-3-phenyl-propionic acid 4-nitro-benzyl ester; compound with trifluoro-acetic acid