New ternary platinum(II) dithiocarbamates: Synthesis, characterization, anticancer, DNA binding and DNA denaturing studies
作者:Muhammad Imran、Zia-ur-Rehman、Tamara Kondratyuk、Francine Bélanger-Gariepy
DOI:10.1016/j.inoche.2019.02.007
日期:2019.5
Abstract Two new ternary platinum(II) complexes of general formula [Pt(DTC)LCl], where DTC = 4-(2-pyridyl)piperazine-1-carbodithioate (1 and 2) and L = tri(p-tolyl)phosphine (1) and tri(o-tolyl)phosphine (2), have been synthesized and characterized. Both complexes have shown phenanthriplatin and picoplatin type axial protection, albeit from both sides, offered by C H moiety of the organophosphine (X-ray
摘要 通式为 [Pt(DTC)LCl] 的两种新型三元铂 (II) 配合物,其中 DTC = 4-(2-pyridyl)piperazine-1-carbodithioate (1 and 2) and L = tri(p-tolyl)phosphine (1) 和三 (o-tolyl) 膦 (2),已被合成和表征。两种复合物都显示出菲铂和吡铂类型的轴向保护,尽管是从两侧,由有机膦的 CH 部分提供(X 射线单晶和 DFT 分析)。此外,2 显示出比 1 更大程度的铂中心轴向屏蔽。针对三种癌细胞系的体外抗癌活性表明 2 比 1 具有更大的抗癌效力。针对 NF-κB(一种癌症促进蛋白)的活性表明死亡癌细胞的增殖可能是由于阻碍了 NF-κB 的活性和随后启动的细胞凋亡。2比1的高活性可归因于其更大的亲脂性和更强的轴向保护(CH⋯Pt = 2.752 A,HC⋯Pt 3.496 A,∠H⋯Pt-P