tert.butyl 4'-[[2-n-propyl-4-methyl-6-[N-(1-acetyl-2-methyl-n-propyl)-methylaminocarbonyl]-1H-benzimidazol-1-yl]-methyl]-biphenyl-2-carboxylate 在
乙酸铵 作用下,
以
溶剂黄146 为溶剂,
以45%的产率得到tert.butyl 4'-[[2-n-propyl-4-methyl-6-(5-methyl-4-isopropyl-imidazol-2-yl)-1H-benzimidazol-1-yl]-methyl]-biphenyl-2-carboxylate