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  • Title: 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.
    Author: da Silva Júnior EN, de Melo IM, Diogo EB, Costa VA, de Souza Filho JD, Valença WO, Camara CA, de Oliveira RN, de Araujo AS, Emery FS, dos Santos MR, de Simone CA, Menna-Barreto RF, de Castro SL.
    Journal: Eur J Med Chem; 2012 Jun; 52():304-12. PubMed ID: 22483633.
    Abstract:
    Five 2-hydroxy-3-substituted-aminomethyl naphthoquinones, nine 1,2,3-triazolic para-naphthoquinones, five nor-β-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 IC(50)/24h values in the range of 10.9-101.5 μM. Compounds 14 and 19 with Selectivity Index of 18.9 and 6.1 are important structures for further studies.
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