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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.)

On the search for potential anti-Trypanosoma cruzi drugs: Synthesis and biological evaluation of 2-hydroxy-3-methylamino and 1,2,3-triazolic naphthoquinoidal compounds obtained by click chemistry reactions

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da Silva Junior, Eufranio N. [1] ; de Melo, Isadora M. M. [1] ; Diogo, Emilay B. T. [1] ; Costa, Verenice A. [1] ; de Souza Filho, Jose D. [1] ; Valenca, Wagner O. [2] ; Camara, Celso A. [2] ; de Oliveira, Ronaldo N. [2] ; de Araujo, Alexandre S. [3] ; Emery, Flavio S. [4] ; dos Santos, Marcelo R. [5] ; de Simone, Carlos A. [6] ; Menna-Barreto, Rubem F. S. [7] ; de Castro, Solange L. [7]
Total Authors: 14
[1] Univ Fed Minas Gerais, Lab Quim Sintet & Heterocicl, Inst Ciencias Exatas, Dept Quim, BR-31270901 Belo Horizonte, MG - Brazil
[2] Univ Fed Rural Pernambuco, Dept Ciencias Mol, BR-52171900 Recife, PE - Brazil
[3] UNESP, Inst Biociencias Letras & Ciencias Exatas Sao Jos, Dept Fis, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
[4] Univ Sao Paulo, Fac Ciencias Farmaceut, BR-14040903 Sao Paulo - Brazil
[5] Univ Brasilia, Inst Quim, BR-70910970 Brasilia, DF - Brazil
[6] Univ Sao Paulo, Dept Fis & Informat, Inst Fis, BR-13560160 Sao Carlos, SP - Brazil
[7] Fiocruz MS, Lab Biol Celular, Inst Oswaldo Cruz, BR-21045900 Rio De Janeiro, RJ - Brazil
Total Affiliations: 7
Document type: Journal article
Web of Science Citations: 42

Five 2-hydroxy-3-substituted-aminomethyl naphthoquinones, nine 1,2,3-triazolic para-naphthoquinones, five nor-beta-lapachone-based 1,2,3-triazoles, and several other naphthoquinonoid compounds were synthesized and evaluated against the infective bloodstream form of Trypanosoma cruzi, the etiological agent of Chagas disease, continuing our screening program for new trypanocidal compounds. Among all the substances, 16-18, 23, 25-29 and 30-33 were herein described for the first time and fifteen substances were identified as more potent than the standard drug benznidazole, with IC50/24 h values in the range of 10.9-101.5 mu M. Compounds 14 and 19 with Selectivity Index of 18.9 and 6.1 are important structures for further studies. (C) 2012 Elsevier Masson SAS. All rights reserved. (AU)

FAPESP's process: 09/51812-0 - Development of a platform for the study of in vitro and in vivo metabolism of natural products, a need for pre-clinical testing system
Grantee:Norberto Peporine Lopes
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 09/14184-0 - Antiinfective compounds: bringing together medicinal chemistry and organic synthesis in search of lead antiparasitic compounds
Grantee:Flavio da Silva Emery
Support type: Regular Research Grants