Design, synthesis and anticonvulsant properties of new N-Mannich bases derived from 3-phenylpyrrolidine-2,5-diones
作者:Krzysztof Kamiński、Jolanta Obniska、Iwona Chlebek、Beata Wiklik、Sabina Rzepka
DOI:10.1016/j.bmc.2013.07.029
日期:2013.11
The synthesis and anticonvulsant properties of new N-Mannich bases of 3-phenyl- (9a–d), 3-(2-chlorophenyl)- (10a–d), 3-(3-chlorophenyl)- (11a–d) and 3-(4-chlorophenyl)-pyrrolidine-2,5-diones (12a–d) were described. The key synthetic strategies involve the formation of 3-substituted pyrrolidine-2,5-diones (5–8), and then aminoalkylation reaction (Mannich-type) with formaldehyde and corresponding secondary
的新的合成和抗惊厥性质N- -3-苯基的曼尼希碱(9A - d),3-(2-氯苯基) - (10A - d),3-(3-氯苯基) - (11A - d)和描述了3-(4-氯苯基)-吡咯烷-2,5-二酮(12a – d)。键合成策略涉及3-取代的吡咯烷-2,5-二酮类(形成5 - 8),然后氨基烷基反应(曼尼希型)与甲醛和相应的仲胺,其让以获得最终化合物9A - d,10a – d,11a – d和12a – d的产量很高。使用最大电击(MES)和皮下戊四氮(sc PTZ)癫痫发作试验对小鼠(ip)进行初始抗惊厥筛选。在大鼠中口服给药后,对小鼠中最有效的化合物进行了测试。急性神经毒性是通过最小运动障碍旋转试验来确定的。体内结果显示,许多化合物尤其在MES测试(人类强直性阵挛性癫痫发作模型)中有效。在大鼠的MES发作中最活跃的是1-[(4-苄基-1-哌啶基)甲基] -3-(2-氯苯基)吡咯烷-2