1-Benzylbenzimidazole reacts with chloromethylalkyl ethers or sulfides or chloromethylcycloalkyl ethers to produce 3-alkoxymethyl-1-benzylbenzimidazolium or 3-alkylthiomethyl-1-benzylbenzimidazolium or 1-benzyl-3-cycloalkoxymethylbenzimidazolium chlorides in very good yields. All the 1-benzylbenimidazolium chlorides showed antimicrobial activity. The relationship between chemical structure and antimicrobial activity was analyzed by quantitative structure-activity relationships (QSAR).
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