Al-Smaisim, R. F. Synthesis, Characterization and Biological Activity of Some New 4-Substituted-Phenyl-3-Chloro-1-{5-[(3, 5-Dimethyl-1H-Pyrazol-1- Yl) Methyl]-1, 3, 4-Thiadiazol-2-Yl} Azetidin-2-One. AJPS 2012, 12, 123-132.