Journal
JOURNAL OF INORGANIC BIOCHEMISTRY
Volume 104, Issue 5, Pages 489-495Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jinorgbio.2009.12.015
Keywords
Ruthenium; Nitrosyl; Diphosphine; Anticancer
Funding
- CNPq
- CAPES
- FINEP
- PRONEX
- FAPESP
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The synthesis and characterization of ruthenium compounds of the type [RuCl2(NO)(dppp)(L)]PF6 [dppp = 1,3-bis(diphenylphosphino)propane; L = pyridine, 4-methylpyridine, 4-phenylpyridine and dimethyl sulfoxide] are described. The complexes were characterized by elemental analysis, UV/Vis and infrared spectroscopy, cyclic voltammetry, and X-ray crystallography for the complexes with the pyridine and 4-methylpyridine ligands. In vitro evaluation of these nitrosyl complexes revealed cytotoxic activity from 7.1 to 19.0 mu M against the MDA-MB-231 breast tumor cells and showed that, in this case, they are more active than the reference metallodrug cisplatin. The 1,3-bis(diphenylphosphino)propane and the N-heterocyclic ligands alone failed to show cytotoxic activities at the concentrations tested (maximum concentration utilized = 200 mu M). (C) 2009 Elsevier Inc. All rights reserved.
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