for the following products
4'-((1,7'-Dimethyl-2'-propyl-1H,3'H-[2,5'-bibenzo[d]imidazol]-3'-yl)methyl)-[1,1'-biphenyl]-2-carbonitrile | Propyl[2,6'-bi-1H-benzimidazol]-1'-yl]methyl]- and 4'-[[2-n-Propyl-4-methyl-6-(1-methyl-benzimidazol-2-yl)-1hbenzimidazol-1-yl]-methyl]-2-cyano-biphenyl4'-[[2-n-propyl-4-methyl-6-(1-2methylbenzimidazol-2-yl)-benzimidazol-1-yl]-methyl]-2-cyano-biphenyl
