Synthesis and in vitro antitumor activity of novel iridium(III) complexes with enantiopure C2-symmetrical vicinal diamine ligands
作者:Qing Yang、Jun Chang、Jiao Song、Meng-Ting Qian、Jian-Ming Yu、Xun Sun
DOI:10.1016/j.bmcl.2013.06.024
日期:2013.8
Four novel iridium(III) complexes with enantiopure C2-symmetrical vicinal diamine ligands were designed, synthesized, and characterized by FT-IR, NMR, and MS. The cytotoxicities of all of the complexes against the human solid tumor cell lines A2780, A549, KB, and MDA-MB-231 were evaluated. Both R,R-configured complexes (R,R)-5a and (R,R)-5b exhibited more potent or similar activity compared with oxaliplatin
通过FT-IR,NMR和MS对四种具有对映纯C 2对称邻二胺配体的铱(III)配合物进行了设计,合成和表征。评估了所有复合物对人实体瘤细胞系A2780,A549,KB和MDA-MB-231的细胞毒性。两个R,R -构型配合物([R ,- [R )-图5a和(- [R ,- [R )- 5b中与奥沙利铂相比,表现出更有效或相似的活性,而其相应的(小号,小号) -异构体(小号,小号) -图5a和(S,发现S)-5b大部分是不活跃的。正如caspase-3的激活,PARP的裂解以及p53的上调所表明的那样,初步的机理研究表明,由(R,R)-5a引起的A2780细胞的细胞死亡模式主要是p53介导的细胞凋亡。 。另外,通过单晶X射线结构测定明确地确认了(R,R)-5a的结构。