Synthesis and structure-activity relationships of quinolinone and quinoline-based P2X7 receptor antagonists and their anti-sphere formation activities in glioblastoma cells
作者:Seung-Hwa Kwak、Seungheon Shin、Ji-Hyun Lee、Jin-Kyoung Shim、Minjeong Kim、So-Deok Lee、Aram Lee、Jinsu Bae、Jin-Hee Park、Aliaa Abdelrahman、Christa E. Müller、Steve K. Cho、Seok-Gu Kang、Myung Ae Bae、Jung Yoon Yang、Hyojin Ko、William A. Goddard、Yong-Chul Kim
DOI:10.1016/j.ejmech.2018.03.023
日期:2018.5
Screening a compound library of quinolinone derivatives identified compound 11a as a new P2X7 receptor antagonist. To optimize its activity, we assessed structure-activity relationships (SAR) at three different positions, R1, R2 and R3, of the quinolinone scaffold. SAR analysis suggested that a carboxylic acid ethyl ester group at the R1 position, an adamantyl carboxamide group at R2 and a 4-methoxy
筛选喹啉酮衍生物的化合物文库,将化合物11a鉴定为新的P2X7受体拮抗剂。为了优化其活性,我们评估了喹啉酮支架在三个不同位置R 1,R 2和R 3的构效关系(SAR)。SAR分析表明,在将R羧酸乙酯基1位置,在r金刚羧酰胺基2和基团R a 4-甲氧基取代3位置是对抗P2X7R活性的最佳取代基。但是,由于大多数喹啉酮衍生物在IL-1βELISA分析中显示出较低的抑制作用,因此核心结构被进一步修饰为带有氯或取代苯基的喹啉骨架。使用喹啉骨架的优化拮抗剂包括2-氯-5-金刚烷基-喹啉衍生物(16c)和2-(4-羟甲基苯基)-5-金刚烷基-喹啉衍生物(17k),IC 50值为4和3 nM,分别。与喹啉酮衍生物相反,喹啉化合物的拮抗作用(16c和17k)与它们抑制促炎细胞因子IL-1β从LPS /IFN-γ/ BzATP刺激的THP-1细胞释放的能力相对应(IC 50分别为7和12 nM)。此外,有效