A novel series of N'-{5-[(1H-indol-3-ylmethyl)-1,3,4-thiadiazol-2-yl}-N4-(4-substituted benzaldehyde)-semicarbazones, N1-{5-[(1H-indol-3-ylmethyl)-1,3,4-thiadiazol-2-yl}-N4-[1-(4-substituted phenyl)ethanone]-semicarbazones and N1-{5-[(1H-indol-3-ylmethyl)-1,3,4-thiadiazol-2-yl}-N4-[1-(4-substituted phenyl) (phenyl) methanone]-semicarbazones were synthesized and evaluated for their anticonvulsant potential using maximal electroshock seizure (MES) and subcutaneous pentylenetrtrazole (scPFZ) models. The minimal motor impairment (neurotoxicity) was determined by rotorod test. The results of the present study confirmed the requirements of various structural features of four binding site pharmacophore model for anticonvulsant activity.
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