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1,2,5-Oxadiazole N-oxide derivatives and related compounds as potential antitrypanosomal drugs: Structure-activity relationships
Keywords: hydrolysis, hydrogenation, spectroscopy, electron, electrochemistry, animals, synthesis, cell, structure, trypanosoma, spin, cytotoxicity, line, resonance, agents, vitro, fibroblasts, nifurtimox, agent, amination, fibroblast, drug, article, hydrophilicity, analysis, activity, cruzi, concentration, lipophilicity, antiprotozoal, relation, study, relationship, derivative, n-oxides, cyclic, Reaction, in, nonhuman, Structure-Activity, Electrochemical, 50, Cricetinae, antitrypanosomal, Trypanocidal, inhibitory, Cricetulus, epimastigote, furazan, Oxadiazoles
Abstract
The syntheses of a new series of derivatives of 1,2,5-oxadiazole N- oxide, benzo[1,2-c]1,2,5-oxadiazole N-oxide, and quinoxaline di-N-oxide are described. In vitro antitrypanosomal activity of these compounds was tested against epimastigote forms of Trypanosoma cruzi. For the most effective drugs, derivatives IIIe and IIIf, the 50% inhibitory dose (ID 50) was determined as well as their cytotoxicity against mammalian fibroblasts. Electrochemical studies and ESR spectroscopy show that the highest activities observed are associated with the facile monoelectronation of the N-oxide moiety. Lipophilic-hydrophilic balance of the compounds could also play an important role in their effectiveness as antichagasic drugs.
Más información
| Título de la Revista: | JOURNAL OF MEDICINAL CHEMISTRY |
| Volumen: | 42 |
| Número: | 11 |
| Editorial: | AMER CHEMICAL SOC |
| Fecha de publicación: | 1999 |
| Página de inicio: | 1941 |
| Página final: | 1950 |
| URL: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0033519706&partnerID=q2rCbXpz |