名称:
Anticancer activity of new organo-ruthenium, rhodium and iridium complexes containing the 2-(pyridine-2-yl)thiazole N,N-chelating ligand
摘要:
The dinuclear dichloro complexes [(eta(6)-arene)(2)Ru-2(mu-Cl)(2)Cl-2] and [(eta(5)-C5Me5)(2)M-2(mu-Cl)(2)Cl-2] react with 2-(pyridine-2-yl)thiazole (pyTz) to afford the cationic complexes [(eta(6)-arene)Ru(pyTz)Cl](+) (arene = C6H6 1, p-(PrC6H4Me)-Pr-i 2 or C6Me6 3) and [(eta(5)-C5Me5)M(pyTz)Cl](+) (M = Rh 4 or Ir 5), isolated as the chloride salts. The reaction of 2 and 3 with SnCl2 leads to the dinuclear heterometallic trichlorostannyl derivatives [(eta(6)-p-(PrC6H4Me)-Pr-i)Ru(pyTz)(SnCl3)](+) (6) and [(eta(6)-C6Me6)Ru(pyTz)(SnCl3)](+) (7), respectively, also isolated as the chloride salts. The molecular structures of 4, 5 and 7 have been established by single-crystal X-ray structure analyses of the corresponding hexafluorophosphate salts. The in vitro anticancer activities of the metal complexes on human ovarian cancer cell lines A2780 and A2780cisR (cisplatin-resistant), as well as their interactions with plasmid DNA and the model protein ubiquitin, have been investigated. (C) 2010 Elsevier B.V. All rights reserved.