Dihydroxylated 2,6-diphenyl-4-chlorophenylpyridines: Topoisomerase I and IIα dual inhibitors with DNA non-intercalative catalytic activity
作者:Ganesh Bist、Seojeong Park、Chanju Song、Til Bahadur Thapa Magar、Aarajana Shrestha、Youngjoo Kwon、Eung-Seok Lee
DOI:10.1016/j.ejmech.2017.03.048
日期:2017.6
structure-activity relationship study revealed that the para position of a hydroxyl group at 2-and 6-phenyl ring and chlorine atom at the para position of 4-phenyl ring of the central pyridine exhibited the most significant topo I and topo IIα inhibition, which might indicate introduction of the chlorine atom at the phenyl ring of 4-pyridine have an important role as dual inhibitors of topo I and topo IIα
为了开发新型的抗增殖药,系统设计,制备和研究了一系列新的十八种二羟基化的2,6-二苯基-4-氯苯基吡啶,并研究了它们对三种异构体的拓扑异构酶(拓扑)I和IIα的抑制特性和抗增殖作用癌细胞系(HCT15,T47D和HeLa)。在中央吡啶环的2-或6-位上具有间-或对-苯酚的化合物22-30显示出显着的双重topo I和topoIIα抑制活性,并对所有测试的人类癌细胞系具有强的抗增殖活性。但是,化合物13-21在2-上具有邻苯酚,中央吡啶环的6-位或6-位未显示出明显的topo I和topoIIα抑制活性,但显示出对所有测试的人类癌细胞系的中等抗增殖活性。在T47D癌细胞系中,与依托泊苷和喜树碱相比,化合物23表现出最高的抗增殖效能,分别高达348.5和105倍。构效关系研究表明,中央吡啶的2-和6-苯环上的羟基的对位和中心吡啶上的氯原子在4-苯环上的对位表现出最显着的topo I和topoI