Artigo Produção Nacional Revisado por pares

Ruthenium (II) phosphine/picolinate complexes as antimycobacterial agents

2009; Elsevier BV; Volume: 45; Issue: 2 Linguagem: Inglês

10.1016/j.ejmech.2009.10.049

ISSN

1768-3254

Autores

Fernando R. Pavan, Gustavo Von Poelhsitz, F.B. Do Nascimento, Sergio R.A. Leite, Alzir A. Batista, Victor M. Deflon, Daisy Nakamura Sato, Scott G. Franzblau, Clarice Q.F. Leite,

Tópico(s)

Mycobacterium research and diagnosis

Resumo

The synthesis, characterization and the anti-Mycobacterium tuberculosis (MTB) activities of three ruthenium complexes containing the 2-pyridinecarboxylic acid anion (picolinate), with formulae cis- [Ru(pic)(dppm)2]PF6 (1), cis- [Ru(pic)(dppe)2]PF6 (2) and [Ru(pic)2(PPh3)2] (3) [pic = 2-pyridinecarboxylate; dppm = bis(diphenylphosphino)methane; dppe = 1,2-bis(diphenylphosphino)ethane; PPh3 = triphenylphosphine] are reported in this article. The complexes were characterized by elemental analysis, spectroscopic and electrochemical techniques. Their in vitro antimycobacterial activity was determinated as the Minimum Inhibitory Concentration (MIC) for MTB cell growth, measured by the REMA method. The best MICs were found for complexes (1) and (2), with values of 0.78 and 0.26 μg/mL, respectively. The results are comparable to or better than “first line” or “second line” drugs commonly used in the treatment of TB.

Referência(s)