、
三氟乙酸 反应 2.0h,
以98%的产率得到5-amino-N-[3-[18-[3-[[5-amino-4-(aminomethyl)pentanoyl]amino]propyl]-6,8,17,19-tetraoxo-7,18-diazaheptacyclo[14.6.2.22,5.03,12.04,9.013,23.020,24]hexacosa-1(23),2,4,9,11,13,15,20(24),21,25-decaen-7-yl]propyl]-4-(aminomethyl)pentanamide;2,2,2-trifluoroacetic acid