Navarrete-Vazquez G, Chávez-Silva F, Argotte-Ramos R, Rodríguez-Gutiérrez MDC, Chan-Bacab MJ, Cedillo-Rivera R, Moo-Puc R, Hernández-Nuñez E. Synthesis of benzologues of Nitazoxanide and Tizoxanide: a comparative study of their in vitro broad-spectrum antiprotozoal activity.
Bioorg Med Chem Lett 2011;
21:3168-71. [PMID:
21397502 DOI:
10.1016/j.bmcl.2011.02.100]
[Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Revised: 02/17/2011] [Accepted: 02/22/2011] [Indexed: 10/18/2022]
Abstract
We have synthesized two new benzologues of Nitazoxanide (NIT) and Tizoxanide (TIZ), using a short synthetic route. Both compounds were tested in vitro against six protozoa (Giardia intestinalis, Trichomonas vaginalis, Entamoeba histolytica, Plasmodium berghei, Leishmania mexicana and Trypanosoma cruzi). Compound 1 (benzologue of NIT) showed broad antiprotozoal effect against all parasites tested, showing IC(50)'s<5 μM. This compound was five-times more active than NIT, and 18-times more potent than metronidazole against G. intestinalis. It was 10-times more active than pentamidine against L. mexicana, and it was sevenfold more potent than benznidazole versus T. cruzi. This compound could be considered as a new broad spectrum antiprotozoal agent.
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