Biological promiscuity of a binuclear Cu(<scp>ii</scp>) complex of aminoguanidine Schiff base: DNA binding, anticancer activity and histidine sensing ability of the complex
作者:Antu Mondal、Chandrima Das、Montse Corbella、Antonio Bauzá、Antonio Frontera、Moumita Saha、Sanchaita Mondal、Krishna Das Saha、Shyamal Kumar Chattopadhyay
DOI:10.1039/c9nj05712a
日期:——
Schiff base of aminoguanidine (LH) with salicylaldehyde, and its Cu(II) complex, [Cu2(LH)2](ClO4)2, have been synthesized. The single crystal X-ray structure of the complex is reported. The complex shows strong DNA binding affinity, with a binding constant value comparable to that of classical intercalators like ethidium bromide. Against the human colon cancer cell line HCT116, the complex shows significant
三齿N,N,O-供体配体,在氨基胍的席夫碱(LH)与水杨醛,和其Cu的形式(II)络合物,[铜2(LH)2 ](CLO 4)2,已合成的。报道了配合物的单晶X射线结构。该复合物显示出强大的DNA结合亲和力,结合常数值可与经典嵌入剂(如溴化乙锭)相媲美。针对人类结肠癌细胞系HCT116,该复合物在体外显示出明显的LD50值为20μM的细胞毒性。结果表明,该复合物的细胞毒性遵循凋亡机制。该络合物还可用于组氨酸的选择性分光光度法或荧光法测定。双核Cu(II)配合物显示出由两个桥接酚盐配体介导的Cu(II)原子之间的强分子内反铁磁相互作用,其2 J = -656 cm -1。DFT计算用于解释磁相互作用。