Journal
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
Volume 44, Issue 1, Pages 296-302Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2008.02.024
Keywords
Cyclopropanespirohydantoin; Anticonvulsant activity; Maximal electroshock seizure test; Pentylenetetrazole test
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Thirteen new 5-cyclopropanespirohydantoins with various N-3 substituents were synthesized and their pharmacological activity was determined with the objective to better understand their structure-activity relationship (SAR) for anticonvulsant activity. The anticonvulsant effects of these compounds were evaluated by maximal electroshock seizure (MES) test and subcutaneous pentylenetetrazole (scPTZ) test models in mice. All compounds substituted with cyclopropyl group at fifth position of hydantoin ring showed better protection against MES test. Compounds 5b, 5d, 5e, 5g and 5j were found to be the most potent compounds of this series and compared with the reference drug phenytoin sodium in MES test. Compound 5j also showed equipotent activity with the standard drug sodium valproate at the doses of 20 and 40 mg kg(-1) in scPTZ test. (C) 2008 Elsevier Masson SAS. All rights reserved.
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