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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Ruthenium(II) complexes with hydroxypyridinecarboxylates: Screening potential metallodrugs against Mycobacterium tuberculosis

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Barbosa, Marilia I. F. [1] ; Correa, Rodrigo S. [1] ; Pozzi, Lucas V. [1] ; Lopes, Erica de O. [2] ; Pavan, Fernando R. [2] ; Leite, Clarice Q. F. [2] ; Ellena, Javier [3] ; Machado, Sergio de P. [4] ; Von Poelhsitz, Gustavo [5] ; Batista, Alzir A. [1]
Total Authors: 10
[1] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Estadual Paulista, Dept Ciencias Biol, Fac Ciencias Farmaceut, BR-14800900 Araraquara, SP - Brazil
[3] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[4] Univ Fed Rio de Janeiro, Inst Quim, BR-21941590 Rio De Janeiro, RJ - Brazil
[5] Univ Fed Uberlandia, Inst Quim, BR-38400902 Uberlandia, MG - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Polyhedron; v. 85, p. 376-382, JAN 8 2015.
Web of Science Citations: 17

Three promising antimycobacterium tuberculosis ruthenium(II) complexes with the deprotonated ligands 2-hydroxynicotinic acid (2-OHnicH), 6-hydroxynicotinic acid (6-OHnicH) and 3-hydroxypicolinic acid (3-OHpicH) were synthesized and characterized. Structural analysis revealed three different coordination modes depending of the hydroxypyridinecarboxylate ligand. In the complex {[}Ru(2-OHnic)(dppb)(bipy)PF6 (1), the 2-OHnic anion is coordinated by the O,O-chelating mode (via carboxylate group and phenolate oxygen), in the Ru(6-OHnic)(dppb)(bipy)]PF6 (2) a O-O chelation by the carboxylate group is observed for the 6-OHnic ligand and for the complex {[}Ru(3-OHpic)(dppb)(bipy))PF6 (3) a N,O-chelating mode (via carboxylate) occurs to the 3-OHpic anion. The compounds were evaluated for activity against Mycobacterium tuberculosis H(37)Rv ATCC 27294 using Resazurin Microtitre Assay (REMA) plate method and cytotoxicity in VERO CCL-81 cell line. All the synthesized compounds exhibited good antimycobacterial activity and a completely lack of cytotoxicity activity, indicating a good selectivity index. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 13/26559-4 - Structural modifications in biologically active Ru(II) complexes toward the design of new metallodrug candidates
Grantee:Rodrigo de Souza Corrêa
Support type: Scholarships in Brazil - Post-Doctorate