Abstract
New series of arylthiadiazole hydrazinecarboxamides (5a-e) have been synthesized by hydrazinolysis of carbamates (4a-e) and spectrally characterized. The new candidates have been screened for their anticonvulsant and immunomodulatory activities. Compound 5e was the most potent anticonvulsant candidate as it showed 100% protection against both maximal electroshock seizure (MES) and subcutaneous pentylenetetrazole (scPTZ) screens without neurotoxicity at 100 mg/kg (0.318 mmol/kg). With respect to immunomodulation, compounds 5a and 5d revealed immunostimulatory activity while compounds 5b, 5c, and 5e had immunosuppressive responses based on ELISA detection of IgM and IgG levels, counting the total mesenteric lymph nodes lymphocytes, and histo-pathological examinations.
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