The mutagenicity of benzimidazole and benzimidazole derivatives III . The influence of the 2-substituent in benzimidazole on the mutagenic activity

Abstract

A number of 2-substituted benzimidazoles has been prepared and the compounds were characterized by their physico-chemical and spectral properties. - Mutagenicity tests with two strains of Salmonella typhimurium revealed that on one hand the mutagenic activity of these compounds tends to parallel their respective pKa's, but that on the other hand the benzimidazoles with larger sized 2-substituents are comparatively less active mutagenic compounds.