ethyl 4'-[(2-n-butyl-6-(tetra-hydro-pyran-2-ylaminocarbonylamino)-benzimidazol-1-yl)-methyl]biphenyl-2-carboxylate 在
aluminum nickel 作用下,
以
乙醇 、
氢气 为溶剂,
生成 ethyl 4'-[(2-n-butyl-6-((5-hydroxy-n-pentyl)-aminocarbonyl-amino)-benzimidazol-1-yl)-methyl]biphenyl-2-carboxylate