Synthesis and Anticancer Activity of Long-Chain Isonicotinic Ester Ligand-Containing Arene Ruthenium Complexes and Nanoparticles
نویسندگان
چکیده
Arene ruthenium complexes containing long-chain N-ligands L = NC5H4–4-COO–C6H4–4-O–(CH2)9–CH3 or L 2 = NC5H4–4-COO–(CH2)10– O–C6H4–4-COO–C6H4–4-C6H4–4-CN derived from isonicotinic acid, of the type [(arene)Ru(L)Cl2] (arene = C6H6, L = L : 1; arene = p-MeC6H4Pr , L = L: 2; arene = C6Me6, L = L : 3; arene = C6H6, L = L : 4; arene = p-MeC6H4Pr , L = L: 5; arene = C6Me6, L = L : 6) have been synthesized from the corresponding [(arene)RuCl2]2 precursor with the long-chain N-ligand L in dichloromethane. Ruthenium nanoparticles stabilized by L have been prepared by the solvent-free reduction of 1 with hydrogen or by reducing [(arene)Ru(H2O)3]SO4 in ethanol in the presence of L with hydrogen. These complexes and nanoparticles show a high anticancer activity towards human ovarian cell lines, the highest cytotoxicity being obtained for complex 2 (IC50 = 2 lM for A2780 and 7 lM for A2780cisR).
منابع مشابه
Arene ruthenium complexes as anticancer agents.
Neutral or cationic arene ruthenium complexes providing both hydrophilic as well as hydrophobic properties due to the robustness of the ruthenium-arene unit hold a high potential for the development of metal-based anticancer drugs. Mononuclear arene ruthenium complexes containing P- or N-donor ligands or N,N-, N,O- or O,O-chelating ligands, dinuclear arene ruthenium systems with adjustable orga...
متن کاملTransferring the concept of multinuclearity to ruthenium complexes for improvement of anticancer activity.
Multinuclear platinum anticancer complexes are a proven option to overcome resistance of established anticancer compounds. Transferring this concept to ruthenium complexes led to the synthesis of dinuclear Ru(II)-arene compounds containing a bis(pyridinone)alkane ligand linker. A pronounced influence of the spacer length on the in vitro anticancer activity was found, which is correlated to the ...
متن کاملMono- and dinuclear (η-arene) ruthenium(II) benzaldehyde thiosemicarbazone complexes: Synthesis, characterization and cytotoxicity
Anticancer drugs A series of monoand dinuclear (η-arene) ruthenium(II) complexes were prepared by reaction of thiosemicarbazone ligands derived from benzaldehyde and ruthenium(II) precursors of the general formula [Ru(η-arene)(μ-Cl)Cl]2, where arene=p-PrC6H4Me or C6H5C3H6COOH. These complexes were characterized by NMR and IR spectroscopy, ESI-mass spectrometry and elemental analysis. The molecu...
متن کاملAnticancer activity of new organo-ruthenium, rhodium and iridium complexes containing the 2-(pyridine-2-yl)thiazole N,N-chelating ligand
The dinuclear dichloro complexes [(g-arene)2Ru2(l-Cl)2Cl2] and [(g-C5Me5)2M2(l-Cl)2Cl2] react with 2-(pyridine-2-yl)thiazole (pyTz) to afford the cationic complexes [(g-arene)Ru(pyTz)Cl] (arene = C6H6 1, p-PrC6H4Me 2 or C6Me6 3) and [(g-C5Me5)M(pyTz)Cl] (M = Rh 4 or Ir 5), isolated as the chloride salts. The reaction of 2 and 3with SnCl2 leads to the dinuclear heterometallic trichlorostannyl de...
متن کامل