三氟乙酸 、
4-(2-tert-Butoxycarbonyl-1-{6-[4-(tert-butoxycarbonylamino-imino-methyl)-benzyloxy]-1-oxo-3,4-dihydro-1H-isoquinolin-2-yl}-ethyl)-benzoic acid methyl ester 生成 4-{1-[6-(4-Carbamimidoyl-benzyloxy)-1-oxo-3,4-dihydro-1H-isoquinolin-2-yl]-2-carboxy-ethyl}-benzoic acid methyl ester; compound with trifluoro-acetic acid