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Shahzad, S. A.; Yar, M.; Khan, Z. A.; Khan, I. U.; Naqvi, S. A. R.; Mahmood, N.; Khan, K. M. Microwave-Assisted Solvent Free Efficient Synthesis of 1,3,4-Oxadiazole-2(3H)-Thiones and Their Potent in Vitro Urease Inhibition Activity. Eur. J. Chem. 2012, 3, 143-146.