Synthesis and biological evaluation of 5-aminoethyl benzophenanthridone derivatives as DNA topoisomerase IB inhibitors
作者:Wen-Lin Tang、Yu Zhang、De-Xuan Hu、Hui Yang、Qian Yu、Jian-Wen Chen、Keli Agama、Yves Pommier、Lin-Kun An
DOI:10.1016/j.ejmech.2019.05.074
日期:2019.9
DNA topoisomerase IB (TOP1) regulates DNA topological structure in many cellular metabolic processes and is a validated target for development of antitumor agents. Our previous study revealed that the benzophenanthridone scaffold is a novel chemotype for the discovery of TOP1 inhibitors. In this work, a series of novel 5-aminoethyl substituted benzophenanthridone derivatives have been synthesized and
DNA拓扑异构酶IB(TOP1)在许多细胞代谢过程中调节DNA拓扑结构,是开发抗肿瘤药物的有效靶点。我们先前的研究表明,苯并菲啶酮支架是发现TOP1抑制剂的新型化学型。在这项工作中,已经合成了一系列新颖的5-氨基乙基取代的苯并菲啶酮衍生物,并对其TOP1抑制和细胞毒性进行了评估。化合物12在人类癌细胞系中表现出最有效的TOP1抑制(+++)和细胞毒性作用,在纳摩尔浓度范围内的GI 50值。12诱导细胞TOP1cc形成和DNA损伤,导致HCT116细胞凋亡。药代动力学,急性毒性和抗肿瘤功效还研究了体内的12种。