alexa Synthesis and anticonvulsant activity evaluation of 5-phenyl-[1,2,4]triazolo[4,3-c]quinazolin-3-amines.


Journal of Chemical Biology & Therapeutics

Author(s): Zheng Y, Bian M, Deng XQ, Wang SB, Quan ZS

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In the present study we describe the syntheses and anticonvulsant activity evaluation of 5-phenyl-[1,2,4]triazolo[4,3-c]quinazolin-3-amine derivatives. Their anticonvulsant activity and neurotoxicity were evaluated by the maximal electroshock seizure test (MES) and the rotarod test, respectively. The majority of the compounds prepared were effective in the MES screens at a dose level of 100 mg/kg. Of these compounds, the most promising was compound 8h, which showed an ED(50) value of 27.4 mg/kg and a protective index (PI) value of 5.8. These values were superior to those provided by valproate (ED(50) and PI values of 272 and 1.6, respectively) in the MES test in mice. As well as its anti-MES efficacy, the potencies of compound 8h against seizures induced by pentylenetetrazole and thiosemicarbazide were also established, with the results suggesting that the GABAergic system-mediated mechanisms might be involved in its anticonvulsant activity.

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This article was published in Arch Pharm (Weinheim) and referenced in Journal of Chemical Biology & Therapeutics

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