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Synthesis, Cytotoxicity and Antileishmanial Activity of Aza-stilbene derivatives

Keywords: Aza-stilbene derivatives , stilbenes , antileishmanial activity , amastigote forms.

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Stilbenes are compounds found in numerous medicinal plants and food products with some known biological and even antileishmanial activity. This paper describes the preparation of Aza-stilbene derivatives and their in vitro biological activities against Leishmania species. Most of the compounds with hydroxyl groups (2a,2b, 2d, 2e and 2f) showed interesting results against three Leishmania species tested. Compound 2f showed the best activity against intracellular forms of L. amazonensis, with IC50 of 7.48 μM, very similar when compared to reference drug Miltefosine. It not possible associate NO production with leishmanicidal activity for all azastilbene derivatives. It is noteworthy that none of compounds tested showed cytotoxicity against macrophages


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