Quinolino[3,4- b ]quinoxalines and pyridazino[4,3- c ]quinoline derivatives: Synthesis, inhibition of topoisomerase IIα, G-quadruplex binding and cytotoxic properties
作者:Fausta Palluotto、Alice Sosic、Odra Pinato、Grigoris Zoidis、Marco Catto、Claudia Sissi、Barbara Gatto、Angelo Carotti
DOI:10.1016/j.ejmech.2016.07.063
日期:2016.11
with other heterocyclic systems plays an important role in the field of anticancer drug development. An extensive series of tetracyclic quinolino[3,4-b]quinoxalines N-5 or C-6 substituted with basic side chain and a limited number of tricyclic pyridazino[4,3-c]quinolines N-6 substituted were designed, synthesized and evaluated for topoisomerase IIα (Topo IIα) inhibitory activity, ability to bind and
与其他杂环系统融合的喹啉基序在抗癌药物开发领域中发挥着重要作用。设计,合成并合成了一系列被碱性侧链取代的四环喹啉代[3,4- b ]喹喔啉N -5或C -6和有限数量的三环哒嗪并[4,3- c ]喹啉N -6取代评估拓扑异构酶IIα(TopoIIα)的抑制活性,结合和稳定G-四链体结构的能力以及对两种人类癌细胞系(HeLa和MCF-7)的细胞毒性。几乎所有受试药物均具有TopoIIα抑制剂和G-四链体稳定剂的高活性。在所有研究的衍生物中,喹啉基[3,4- b分别取代的]喹喔啉11和23,N -5和C -6是最有前途的化合物。衍生物11对选定的G-四链体序列具有选择性结合,而衍生物23显示出最有趣的TopoIIα抑制活性(IC 50 = 5.14μM);两者均显示出高细胞毒性活性(IC 50 HeLa分别为2.04μM和2.32μM)。