Abstract
A new class of benzazolyl azolyl urea derivatives were prepared by the reaction of methyl benzazoyl carbamates with azolyl amines in the presence of mild base potassium tert-butoxide. The presence of electron withdrawing substituents on the aromatic ring enhanced the activity. Nitro substituted benzothiazolyl thiazolyl urea, benzothiazolyl imidazolyl urea and benzimidazolyl thiazolyl urea exhibited potential antibacterial activity against Bacillus subtilis. The compound benzothiazolyl imidazolyl urea and nitro substituted benzimidazolyl imidazolyl urea showed potential antifungal activity against Aspergillus niger.
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