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Five (2a–e) benzenesulfonylurea derivatives bearing pyridazinone were synthesized by refluxing the appropriate 6-aryl-2-(p-sulfamylphenyl)-4,5-dihydropyridazine-3(2H)-one with benzylisocyanate in dry acetone over anhydrous K2CO3. These compounds were characterized by elemental analysis and various spectroscopic techniques viz; IR, 1H NMR, 13C NMR, and MS data. These compounds (2a–e) at the dose of...
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