Journal
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
Volume 251, Issue -, Pages -Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2023.115256
Keywords
Natural products analogs; Sulfuretin; Leishmania donovani; Promastigotes; Amastigotes
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A potential lead compound, 2o, was identified in this study for the treatment of visceral leishmaniasis. It showed promising activity against the parasite Leishmania donovani and had an acceptable safety profile. This research provides a starting point for the development of new drugs for the treatment of this neglected tropical disease.
Up to date, there are still significantly unmet clinical needs for treatment of the fatal visceral leishmaniasis; a neglected tropical disease. Herein, a recently reported antileishmanial hit sulfuretin analog suffering from a low potency and a problematic aqueous solubility that hindered further development was used as a starting point. A mitigation rational via incorporation of O6-aminoalkyl moiety suggest structures analogous to literature-known compounds as cholinesterase inhibitors. Consequently, preparation and repurposing of a library of these com-pounds unveiled their potential activity against the parasite Leishmania donovani promastigotes. Further evalu-ation against intracellular form of the parasite and host cells suggested compounds 2a, 2c, and 2o derived from sulfuretin analogs bearing 2 '-methoxy or 2 ',5 '-dimethoxy substituents at ring-B as promising lead compounds with potential activity and acceptable safety window relative to the standard edelfosine. In silico simulation predicted plausible binding modes of these compounds to L. donovani fumarate reductase. Together this work presents compound 2o as a potential lead compound for further development.
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