7-({(2S,5R,8S,11S,14S,19S)-19-Amino-2-benzyl-11-(1-hydroxy-ethyl)-5-(1H-indol-3-ylmethyl)-3,6,9,12,20-pentaoxo-8-[4-(pyridin-4-ylmethoxycarbonylamino)-butyl]-1,4,7,10,13-pentaaza-cycloicosane-14-carbonyl}-amino)-heptanoic acid methyl ester 在
N,N-二甲基甲酰胺 、
肼 作用下,
反应 1.67h,
以54%的产率得到{4-[(3S,6S,9R,12S,15S,20S)-15-Amino-12-benzyl-20-(6-hydrazinocarbonyl-hexylcarbamoyl)-3-(1-hydroxy-ethyl)-9-(1H-indol-3-ylmethyl)-2,5,8,11,14-pentaoxo-1,4,7,10,13-pentaaza-cycloicos-6-yl]-butyl}-carbamic acid pyridin-4-ylmethyl ester