title: Synthesis and anticonvulsant activity of 5-chloro-2(3H)-benzoxazolinone-3-acetyl-2-(o/p-substituted benzal) hydrazone derivatives.
abstract: It is well known that some hydrazone derivatives of both 2-oxobenzoxazoline and 2-oxobenzothiazoline exhibit potent anticonvulsant activity. In order to investigate the effects of structural modifications on the biological properties, 14 new hydrazones of 5-chloro-2(3H)-benzox-azolinone-3-acetyl hydrazide were synthesized. The chemical structures of the synthesized compounds were established by IR, 1H-NMR spectral analyses and elementary analyses. The anticonvulsant activities of the title compounds were tested by the penthylenetetrazole induced seizure test. 5-Chloro-2(3H)-benz-oxazolinone-3-acetyl-2-(o-methoxy-benzaldehyde)-hydrazone 4d, 5-chloro-2(3H)-benzoxazolinone-3-acetyl-2-(o-methybenzaldehyde)-hydrazone 4g, 5-chloro-2(3H)-benzoxazolinone-3-acetyl-2-(p-methylbenzaldehyde)-hydrazone 4h, 5-chloro-2(3H)-benzoxazolino-ne-3-acetyl-2-(p-nitrobenzaldehyde)-hydrazone 4m, and 5-chloro-2(3H)-benzox-azolinone-3-acetyl-2-(p-dimethylaminobenzaldehyde)-hydrazone 4n were found more active than phenytoin (CAS 57-41-0) in the tests.
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Ankara, Turkey. mgokce@gazi.edu.tr
authors.forename: Mehtap
authors.initials: M
authors.lastname: Gökçe
authors.forename: Ahmet Emin
authors.initials: AE
authors.lastname: Geciken
authors.forename: Engin
authors.initials: E
authors.lastname: Yildirim
authors.forename: Ali Ulvi
authors.initials: AU
authors.lastname: Tosuni
mesh_terms: D000818:Animals; D000927:Anticonvulsants / Q000138:chemical synthesis* / Q000494:pharmacology*; D003292:Convulsants; D004827:Epilepsy / Q000139:chemically induced / Q000517:prevention & control; D006835:Hydrazones / Q000138:chemical synthesis* / Q000494:pharmacology*; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D051379:Mice; D010433:Pentylenetetrazole; D010672:Phenytoin / Q000494:pharmacology; D004856:Postural Balance / Q000187:drug effects; D013055:Spectrophotometry, Infrared; D013329:Structure-Activity Relationship
chemical_list: D000927:Anticonvulsants; D003292:Convulsants; D006835:Hydrazones; D010672:Phenytoin; D010433:Pentylenetetrazole