Design, synthesis, biological evaluation, structure-activity relationship study, and mode of action of 2-phenol-4,6-dichlorophenyl-pyridines
作者:Aarajana Shrestha、Seojeong Park、Somin Shin、Tara Man Kadayat、Ganesh Bist、Pramila Katila、Youngjoo Kwon、Eung-Seok Lee
DOI:10.1016/j.bioorg.2018.03.033
日期:2018.9
recombination. Inspired by previous studies of 2,4,6-trisubstituted pyridines to find out safer and effective topoisomerase targeted anticancer agent, twenty-seven 2-phenol-4,6-dichlorophenyl-pyridines were designed, synthesized, and tested for their topo I and IIα inhibitory and anti-proliferative activity. Most of the dichlorinated meta- and para-phenolic series compounds (1–18) exhibited potent and selective
人类DNA拓扑异构酶(Topos)是必不可少的核酶,其表达水平是预测化学疗法反应结果的潜在指标。Topos已成为大多数抗癌剂的关键细胞靶标,这些抗癌剂可在细胞代谢过程中调节DNA的拓扑问题,例如复制,转录和重组。受先前对2,4,6-三取代吡啶的研究启发,以发现更安全有效的拓扑异构酶靶向抗癌药,设计,合成了27种2-苯酚-4,6-二氯苯基吡啶,并测试了它们的topo I和IIα抑制和抗增殖活性。大多数二氯间-和对-酚系列化合物(1 – 18)与依托泊苷阳性对照相比,在HCT-15和T47D细胞系中表现出有效和选择性的topoIIα抑制作用以及显着的抗增殖活性。有趣的是,二氯化邻-phenolic系列化合物(19 - 27)显示出强效和双TOPO抑制但在所测试的癌细胞系非常弱的抗增殖活性。与先前合成的化合物的构效关系揭示了氯部分对改善拓扑抑制活性的作用的重要性。进一步的机理研究证实了化合物2和12