Synthesis and biological evaluation of 6-substituted indolizinoquinolinediones as catalytic DNA topoisomerase I inhibitors
作者:Le-Mao Yu、Xiao-Ru Zhang、Xiao-Bing Li、Yuan Yang、Hong-Yu Wei、Xi-Xin He、Lian-Quan Gu、Zhi-Shu Huang、Yves Pommier、Lin-Kun An
DOI:10.1016/j.ejmech.2015.07.007
日期:2015.8
at C-6 side chain, including 8, 11-16, 18-21, 25, 26 and 28-30, are the most potent Top1 catalytic inhibitors. Top1-mediated unwinding assay demonstrated that 14, 22 and 26 were Top1 catalytic inhibitors without Top1-mediated unwinding effect. Moreover, MTT results showed that compounds 26, 28-30 exhibit significant cytotoxicity against human leukemia HL-60 cells, and that compound 26 exerts potent
在我们以前的工作中,吲哚izinoquinolinedione衍生物1被确定为Top1催化抑制剂。本文中,通过修饰母体化合物1合成了一系列6-取代的吲哚izinoquinolinedione衍生物。Top1的裂解和弛豫分析表明,这些新化合物均不充当经典的Top1毒物,并且该化合物在C-6侧具有烷基氨基末端最强的Top1催化抑制剂,包括8、11-16、18-21、25、26和28-30。Top1介导的展开实验表明14、22和26是Top1催化抑制剂,没有Top1介导的展开作用。此外,MTT结果表明,化合物26、28-30对人白血病HL-60细胞具有明显的细胞毒性,