In the present investigation, we described herein the molecular properties prediction by Molinspiration (2008) and synthesized a series of 17 2-(substituted benzylidene/ethylidene)-N-(substituted phenyl)hydrazinecarboxamide analogues. All the title compounds (4a– q) followed the Lipinski ''Rule of Five.'' The synthesized compounds were characterised by elemental analyses and spectral data followed by anticonvulsant activity according to the Antiepileptic Drug Development Programme Protocol. 2-(4-Hydroxybenzylidene)-N-(2-chlorophenyl)hydrazinecarboxamide (4j) was found to be the most active compound of the series showing protection at 4.0 h at a dose of 100 mg/kg against maximal electroshock seizure test and 50 % (2/4, 0.25, 1–2 h) and 100 % (4/4, 0.5 h) protection in 6 Hz psychomotor seizure test without showing any neurotoxicity. N-(2-chlorophenyl)hydrazine carboxamide (3b) showed 100 % (4/4, 0.25–2 h) and 66.6 % (2/3, 4 h) protection in 6 Hz psychomotor seizure test.