for the following products
1H-Benzimidazole-7-carboxylic acid, 1-[(2'-cyano[1,1'-biphenyl]-4-yl)methyl]-2-ethoxy-methyl ester | Azilsartan impurity 46 | Methyl 1-[(2'-cyanobiphenyl-4-yl)methyl]-2-ethoxy-1H-benzimidazole-7-carboxylate and Methyl 1-((2'-cyano-[1,1'-biphenyl]-4-yl)methyl)-2-ethoxy-1H-benzo[d]imidazole-7-carboxylate