Faidallah, H. M.; Khan, K. A.; Asiri, A. M. Synthesis and Characterization of a Novel Series of Benzenesulfonylurea and Thiourea Derivatives of 2H-Pyran and 2H-Pyridine-2-Ones As Antibacterial, Antimycobacterial and Antifungal Agents. Eur. J. Chem. 2011, 2, 243-250.