2,4-Dihydro-3H-1,2,4-triazol-3-ones as anticonvulsant agents
摘要:
A series of 5-aryl-2,4-dihydro-3H-1,2,4-triazol-3-ones was evaluated for anticonvulsant activity. In general the members of this series were prepared by the alkaline cyclization of 1-aroyl-4-alkylsemicarbazides. The resulting 2-unsubstituted 3H-1,2,4-triazol-3-ones were then alkylated, yielding 2,4-dialkyl-3H-1,2,4-triazol-3-ones. Approximately one-third of the compounds examined exhibited activity against both maximal electroshock- and pentylenetetrazole-induced seizures in mice. Receptor-binding studies suggest that this activity was not a consequence of activity at either benzodiazepine or NMDA-type glutamate receptors. From this series, compound 45 was selected for further evaluation where it was also found to be active against 3-mercaptopropionic acid, bicuculline, and quinolinic acid induced seizures in mice. In addition, 45 also protected gerbils from hippocampal neuronal degeneration produced by either hypoxia or intrastriatal quinolinic acid injection.
5-aryl-3H-1,2,4-triazol-3-ones and their use in the treatment of
申请人:Merrell Dow Pharmaceuticals Inc.
公开号:US05436252A1
公开(公告)日:1995-07-25
This invention relates to neuroprotective 5-aryl-3H-1,2,4-triazol-3-ones and to their use in the treatment of neurodegenerative disorders such as cerebral ischemia, stroke, Alzheimer's disease, Parkinson's disease, and Huntington's disease.
A series of aliphatic isoniazid carbo(x/thio)amides has been synthesized by a facile one-pot green method in aqueous media by harnessing microwave irradiations. In vitro antitubercular screening of the synthesized compounds against Mycobacterium tuberculosis H37Rv (MTB strain) reveals promising antimycobacterial potential with MIC in the range of 1 to 4 µg/ml. A computational approach comprising DFT