ethyl 1-<<3-bromo-2-<2-<(1,1-dimethylethoxy)carbonyl>phenyl>-5-benzofuranyl>methyl>-4-cyclopropyl-2-ethyl-1H-imidazole-5-carboxylate 在
sodium hydroxide 作用下,
以
甲醇 为溶剂,
反应 3.0h,
以59%的产率得到1-<<3-bromo-2-<2-<(1,1-dimethylethoxy)carbonyl>phenyl>-5-benzofuranyl>methyl>-4-cyclopropyl-2-ethyl-1H-imidazole-5-carboxylic acid