Synthesis and Anticonvulsant Activities of 3,3-Dialkyl- and 3-Alkyl-3-benzyl-2-piperidinones (δ-Valerolactams) and Hexahydro-2H-azepin-2-ones (ε-Caprolactams)
摘要:
A series of 3-substituted 2-piperidinone (delta-valerolactam) and hexahydro-2H-azepin-2-one (epsilon-caprolactam) derivatives were prepared and evaluated as anticonvulsants in mice. In the 2-piperidinone series, 3,3-diethyl compound 7b is the most effective anticonvulsant against pentylenetetrazole-induced seizures (ED(50), 37 mg/kg; PI (TD50/ED(50)), 4.46), and 3-benzyl compound 4c (ED(50), 41 mg/kg; PI, 7.05) is the most effective anticonvulsant against-seizures induced by maximal electroshock. By contrast, none of the epsilon-caprolactams tested had anticonvulsant effects below doses causing rotorod toxicity. log P values were correlated with neurotoxicity and [S-35]TBPS displacement, but not with anticonvulsant activity. Electrophysiological evaluations of selected compounds from each series indicated that both the delta-valerolactams and epsilon-caprolactams potentiated GABA-mediated chloride currents in rat-hippocampal neurons.
Anticonvulsant and anxiolytic lactam and thiolactam derivatives
申请人:Washington University
公开号:US05776959A1
公开(公告)日:1998-07-07
This invention relates to lactam and thiolactam derivatives having useful anticonvulsant and anxiolytic activity, pharmaceutical compositions containing these compounds and therapeutic applications using such compositions.
Lactam and thiolactam derivatives as anesthetic and conscious sedation agents
申请人:——
公开号:US20030078283A1
公开(公告)日:2003-04-24
This invention relates to lactam and thiolactam derivatives having useful anesthetic and conscious sedation activity. Particularly useful compounds include the diethyl lactams such as 3,3-diethyl-2-pyrrolidinone. Methods for using these compounds and pharmaceutical compositions containing these compounds are provided.