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