2,2'-Methylenebis[5-(4,4-dimethyl-2-imidazolin-2-yl)-1H-benzimidazole] 5-(4,4-Dimethyl-4,5-dihydro-1H-imidazol-2-yl)-2-{[5-(5,5-dimethyl-4,5-dihydro-1H-imidazol-2-yl)-1H-benzimidazol-2-yl]methyl}-1H-benzimidazole AIDS-195628 AIDS195628