甲酸 、
(S)-2-(2,3-Bis-benzyloxy-benzoylamino)-3-{(S)-2-(2,3-bis-benzyloxy-benzoylamino)-3-[(S)-2-(2,3-bis-benzyloxy-benzoylamino)-3-tert-butoxycarbonylamino-propionylamino]-propionylamino}-propionic acid methyl ester 反应 2.0h,
以90.9%的产率得到(S)-3-[(S)-3-[(S)-3-Amino-2-(2,3-bis-benzyloxy-benzoylamino)-propionylamino]-2-(2,3-bis-benzyloxy-benzoylamino)-propionylamino]-2-(2,3-bis-benzyloxy-benzoylamino)-propionic acid methyl ester; compound with formic acid