Tert-butyl 1-(chloromethyl)-7-[[4-[[2-[[2-[[2-[(2-methoxy-2-oxoethyl)carbamoyl]-1-methylimidazol-4-yl]carbamoyl]-1-methylimidazol-4-yl]carbamoyl]-1-methylimidazol-4-yl]amino]-4-oxobutanoyl]amino]-5-phenylmethoxy-1,2-dihydrobenzo[e]indole-3-carboxylate 在
sodium hydroxide 作用下,
以
甲醇 为溶剂,
以81%的产率得到5-benzyloxy-7-[3-(2-{2-[2-(carboxymethylcarbamoyl)-1-methyl-1H-imidazol-4-ylcarbamoyl]-1-methyl-1H-imidazol-4-ylcarbamoyl}-1-methyl-1H-imidazol-4-ylcarbamoyl)propionylamino]-1-chloromethyl-1,2-dihydrobenzo[e]indole-3-carboxylic acid tert-butyl ester