SAR Studies and Biological Characterization of a Chromen-4-one Derivative as an Anti-<i>Trypanosoma brucei</i> Agent
作者:Chiara Borsari、Nuno Santarem、Sara Macedo、María Dolores Jiménez-Antón、Juan J. Torrado、Ana Isabel Olías-Molero、María J. Corral、Annalisa Tait、Stefania Ferrari、Luca Costantino、Rosaria Luciani、Glauco Ponterini、Sheraz Gul、Maria Kuzikov、Bernhard Ellinger、Birte Behrens、Jeanette Reinshagen、José María Alunda、Anabela Cordeiro-da-Silva、Maria Paola Costi
DOI:10.1021/acsmedchemlett.8b00565
日期:2019.4.11
Chemical modulation of the flavonol 2-(benzo[d] [1,3]dioxo1-5-y1)-chromen-4-one (1), a promising anti-Trypanosomatid agent previously identified, was evaluated through a phenotypic screening approach. Herein, we have performed structure activity relationship studies around hit compound 1. The pivaloyl derivative (13) showed significant anti-T. brucei activity (EC50 = 1.1 1iM) together with a selectivity index higher than 92. The early in vitro ADME-tox properties (cytotoxicity, mitochondria] toxicity, cytochrome P450 and hERG inhibition) were determined for compound 1 and its derivatives, and these led to the identification of some liabilities. The 1,3-benzodioxole moiety in the presented compounds confers better in vivo pharmacokinetic properties than those of classical flavonols. Further studies using different delivery systems could lead to an increase of compound blood levels.