Anti-leishmanial and structure-activity relationship of ring substituted 3-phenyl-1-(1, 4-di-N-oxide quinoxalin-2-yl)-2-propen-1-one derivatives
Burguete, Asunción; Estevez, Yannick; Castillo, Denis; González, Germán; Villar, Raquel; Solano, Beatriz; Vicente, Esther; Silanes, Silvia Pérez; Aldana, Ignacio; Monge, Antonio; Sauvain, Michel; Deharo, Eric.
Mem. Inst. Oswaldo Cruz
; 103(8): 778-780, Dec. 2008. tab
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| LILACS | ID: lil-502297
A series of ring substituted 3-phenyl-1-(1,4-di-N-oxide quinoxalin-2-yl)-2-propen-1-one derivatives were synthesized and tested for in vitro leishmanicidal activity against amastigotes of Leishmania amazonensis in axenical cultures and murine infected macrophages. Structure-activity relationships demonstrated the importance of a radical methoxy at position R3', R4' and R5'. (2E)-3-(3,4,5-trimethoxy-phenyl)-1-(3,6,7-trimethyl-1,4-dioxy-quinoxalin-2-yl)-propenone was the most active. Cytotoxicity on macrophages revealed that this product was almost six times more active than toxic.
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