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    Novel 1,2,4-Triazolo[3,4-b]-1,3,4-thiadiazole Derivatives as Dual Analgesic/Anti-inflammatory and Antimicrobial Agents
    (Bentham Science Publ Ltd, 2012) Tozkoparan, Birsen; Aytac, Sevim Peri; Gursoy, Sule; Gunal, Selami; Aktay, Goknur
    For this study, a series of 3,6-disubstituted-1,2,4-triazolo-[3,4-b]-1,3,4-thiadiazoles (1-12) were synthesized by condensation of 4-amino-5-substituted-3-mercapto-1,2,4-triazoles with various benzoic acids through a one-pot reaction. The anti-inflammatory and analgesic activities as well as gastrointestinal irritation liability of the obtained compounds were evaluated. Several of the synthesized compounds showed noticeable analgesic and anti-inflammatory activity. For the active compounds a very low ulcerogenic index and diminished oxidative damage in stomach were observed. Moreover, title compounds were screened for their antifungal and antibacterial activities. Antifungal activity of the compounds was found better than that of their antibacterial activity.
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    Novel 3,6-Disubstituted 7H-1,2,4-Triazolo[3,4-b][1,3,4]thiadiazines: Synthesis, Characterization, and Evaluation of Analgesic/Anti-inflammatory, Antioxidant Activities
    (Wiley-V C H Verlag Gmbh, 2009) Tozkoparan, Birsen; Aytac, Sevim Peri; Aktay, Goeknur
    In this study, the synthesis of a new series of 3,6-disubstituted-7H-1,2,4-triazolo[3,4-b][1,3,4]thiadiazine 1a-4c Compounds derived from 4-amino-3-substituted-1,2,4-triazole-5-thiones 1-4 is described. All of the synthesized compounds were screened for their possible analgesic / anti-inflammatory, antioxidant activities and gastric toxicity. The compound 2c was found to have both significant analgesic and consistent anti-inflammatory activity without inducing any gastric lesions along with minimal lipid peroxidation. A deep insight into the structures of the active compounds revealed that the compounds carrying an electron withdrawing group (a chloride or fluoride) on the phenyl ring at 6-position of the condensed heterocyclic derivatives exhibited noticeable higher activity.