Design, synthesis, anticonvulsant activity and structure-activity relationships of novel 7-Azaindole derivatives
作者:Qingfei Meng、Xue Ren、Rui Wang、Yu Han、Xiufen Li、Qin Zhang、Zhenpeng Li、Yuexing Wang、Longjiang Huang、Haibo Yu
DOI:10.1016/j.bioorg.2023.106430
日期:2023.4
In search of new-structure compounds with good anticonvulsant activity and low neurotoxicity, a series of 3-(1,2,3,6-tetrahydropyridine)-7-azaindole derivatives was designed and synthesized. Their anticonvulsant activities were evaluated by maximal electroshock (MES) and pentylenetetrazole (PTZ) test, and neurotoxicity was determined by the rotary rod method. In the PTZ-induced epilepsy model, compounds
为了寻找具有良好抗惊厥活性和低神经毒性的新结构化合物,设计并合成了一系列3-(1,2,3,6-四氢吡啶)-7-氮杂吲哚衍生物。通过最大电击(MES)和戊四唑(PTZ)试验评价其抗惊厥活性,并通过旋转棒法测定神经毒性。在PTZ诱导的癫痫模型中,化合物4i 、 4p和5k显示出显着的抗惊厥活性,ED 50值分别为30.55mg/kg、19.72mg/kg和25.46mg/kg。然而,这些化合物在 MES 模型中没有表现出任何抗惊厥活性。更重要的是,这些化合物具有较低的神经毒性,保护指数(PI=TD 50 /ED 50 )值分别为8.58、10.29和7.41。为了获得更清晰的构效关系,基于4i 、 4p和5k合理设计了更多的化合物,并在PTZ模型上评价其抗惊厥活性。结果表明,7-氮杂吲哚7位的N原子和1,2,3,6-四氢吡啶骨架中的双键对于抗癫痫活性至关重要。