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Synthesis of some new 2-substituted-4-sulfamoylphenylazo-thiophene and/or thiazole derivatives as antibacterial agents

ABSTRACT Benzoylacetone has been reacted with phenyl isothiocyanate to afford two different thiocarbamoyl derivatives (α-phenylthiocarbamoyl benzoylacetone and benzoyl thioacetanilide) depending upon the base used to perform the reaction. Several new 2-substituted-4-sulfamoylphenylazo-thiophene and/or thiazole derivatives were synthesized by heterocyclization of the thiocarbamoyl derivatives with various halogenated reagents. The synthesized compounds were screened for their antibacterial activities; they showed accepted activities with respect to the control drugs. GRAPHICAL ABSTRACT