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  • Title: Novel limonene and citral based 2,5-disubstituted-1,3,4-oxadiazoles: a natural product coupled approach to semicarbazones for antiepileptic activity.
    Author: Rajak H, Singh Thakur B, Singh A, Raghuvanshi K, Sah AK, Veerasamy R, Sharma PC, Singh Pawar R, Kharya MD.
    Journal: Bioorg Med Chem Lett; 2013 Feb 01; 23(3):864-8. PubMed ID: 23265873.
    Abstract:
    Two novel series of N(4)-(5-(2/3/4-substituted-phenyl)-1,3,4-oxadiazol-2-yl)-N(1)-(2-methyl-5-(prop-1-en-2-yl)cyclohex-2-enylidene)semicarbazide and N(4)-(5-(2/3/4-substituted-phenyl)-1,3,4-oxadiazol-2-yl)-N(1)-(3,7-dimethylocta-3,6-dienylidene)-semicarbazide were synthesized to meet structural prerequisite indispensable for anticonvulsant activity. The anticonvulsant activities of the compounds were investigated using maximal electroshock seizure (MES), subcutaneous pentylenetrtrazole (scPTZ) and subcutaneous strychnine (scSTY) models. The rotorod test was conducted to evaluate neurotoxicity. Some of the selected active compounds were subjected to GABA assay to confirm their mode of action. The outcome of the present investigations proved that the four binding sites pharmacophore model is vital for anticonvulsant activity. The efforts were also made to establish structure-activity relationships among test compounds.
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