Synthesis of 3,4-dihydroquinolin-2(1H)-one derivatives with anticonvulsant activity and their binding to the GABAA receptor
作者:Shiben Wang、Hui Liu、Kang Lei、Guangyong Li、Jun Li、Yuyu Wei、Xuekun Wang、Renmin Liu
DOI:10.1016/j.bioorg.2020.104182
日期:2020.10
7-((5-(pentylthio)-1,3,4-oxadiazol-2-yl)methoxy)-3,4-dihydroquinolin-2(1H)-one (5b) showed the best anticonvulsant activity (MES, ED50 = 10.1 mg/kg; scPTZ, ED50 = 9.3 mg/kg), which was superior to activities shown by carbamazepine and ethosuximide, and it also exhibited the most potent binding affinity to GABAA receptors (IC50 = 0.12 μM). The GABA content in Wistar rat brains (i.p.) was also investigated, and
在这项研究中,使用最大电击(MES)和皮下戊烯四唑(scPTZ)这两个实验模型设计并合成了一系列3,4-二氢喹啉-2(1 H)-one衍生物,以测试其抗惊厥活性。体内靶向化合物(昆明小鼠腹腔注射)。通过旋转棒法(ip在昆明小鼠中)测量目标化合物的神经毒性(NT)。从两个实验模型中选择六种具有潜在活性的化合物,以测试50%有效剂量(ED 50)。GABA A的体外结合实验受体也进行了。药理实验结果表明,化合物7-((5-(戊硫基)-1,3,4-恶二唑-2-基)甲氧基)-3,4-二氢喹啉-2(1 H)-一(5b)表现出最佳的抗惊厥活性(MES,ED 50 = 10.1 mg / kg; scPTZ,ED 50 = 9.3 mg / kg),优于卡马西平和乙磺酰亚胺的活性,并且对GABA A的结合力最强受体(IC 50 = 0.12μM)。还研究了Wistar大鼠大脑(ip)中的GABA含