Synthesis, characterization, DNA binding, topoisomerase I inhibition and antiproliferation activities of three new functionalized terpyridine platinum(II) complexes
作者:Keke Chai、Wenhua Kuang、Zhou Lan、Li Zhang、Yihui Jiang、Tianzhi Han、Junlong Niu、Jintao Wang、Xuemin Duan
DOI:10.1016/j.jinorgbio.2018.12.003
日期:2019.3
Three new platinum(II) complexes with pendent morpholine were synthesized, namely complex 1 ([Pt(L)Cl]CF3SO3), complex 2 ([Pt(L)(NH3)](CF3SO3)2) and complex 3 ([Pt(L)(PPh3)](CF3SO3)2), where L = 4'-[4-(4-morpholinobutyloxy)phenyl]-2,2':6',2″-terpyridine and PPh3 = triphenylphosphine. The detailed molecular structures of complex 3, L and its precursor L' (1,4'-[4-(4-bromobutyloxy)phenyl]-2,2':6',2″-terpyridine)
合成了三种新的具有侧吗啉的铂(II)配合物,即配合物1([Pt(L)Cl] CF3SO3),配合物2([Pt(L)(NH3)](CF3SO3)2)和配合物3([Pt (L)(PPh3)](CF3SO3)2),其中L = 4'-[4-(4-吗啉代丁氧基)苯基] -2,2':6',2''-吡啶和PPh3 =三苯基膦。配合物3,L及其前体L'(1,4'-[4-(4-溴丁氧基)苯基] -2,2':6',2''-吡啶)的详细分子结构由单晶X确定射线衍射。通过甲基噻唑基四唑鎓(MTT)分析分别在三种癌细胞系和正常细胞作为对照中评估了配体和复合物的体外细胞毒性。配合物1-3的IC50值低于参考药物顺铂的IC50值,并且这些配合物的选择性大于顺铂。其中,具有离去基团PPh3的复合物3被发现是对某些细胞系最有效的复合物,尤其是对顺铂耐药的A549cisR细胞。发现这些复合物结合DNA,诱导有效的DNA解链。