Synthesis, DNA-cleaving activities and cytotoxicities of C2-symmetrical dipyrrole-polyamide dimer-based Cu(II) complexes: A comparative study
作者:Chun-Qiong Zhou、Yan-Ling Lin、Jian-Wei Yang、Jin-Xiang Chen、Wen-Hua Chen
DOI:10.1016/j.ejmech.2013.06.020
日期:2013.8
Cu(II) complex of their 2,2′-(ethane-1,2-diylbis(oxy))diethanamine-tethered analog 1. The finding that compounds 2 and 3 showed higher Cu(II) ion-complexing abilities than compound 1, suggests that strong metal complexation does not necessarily lead to an enhancement in the catalytic efficiency of a DNA-cleaving agent. In addition, three Cu(II) complexes displayed moderate inhibitory activities toward
两个Ç 2 -symmetrical二吡咯聚酰胺二聚体2和3这是与栓系分别三亚乙基四胺和精胺,以及它们的对应的铜(II)络合物2 @Cu 2+和3 @Cu 2+,合成和完全表征。对pBR322 DNA裂解的琼脂糖凝胶电泳研究表明,两种Cu(II)配合物在生理条件下都表现出有效的DNA裂解活性,很可能是通过氧化机制。动力学分析表明2 @Cu 2+和3 @Cu 2+与2,2'-(乙烷-1,2-二基双(氧基))二乙胺系缆的类似物1的Cu(II)配合物相比,具有较高的催化效率。化合物2和3与化合物1相比具有更高的Cu(II)离子络合能力,这一发现表明强金属络合不一定导致DNA裂解剂催化效率的提高。此外,三种铜(II)配合物显示出对三种肿瘤细胞系的中等抑制活性。