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.
Synthesis and Anticonvulsant Activities of 3,3-Dialkyl- and 3-Alkyl-3-benzyl-2-piperidinones (δ-Valerolactams) and Hexahydro-2<i>H</i>-azepin-2-ones (ε-Caprolactams)
作者:P. Amruta Reddy、Karen E. Woodward、Sarah M. McIlheran、Bonnie C. H. Hsiang、Tammy N. Latifi、Matthew W. Hill、Steven M. Rothman、James A. Ferrendelli、Douglas F. Covey
DOI:10.1021/jm960561u
日期:1997.1.1
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.