Synthesis and biological characterization of new aryloxyindole-4,9-diones as potent trypanosomicidal agents

Bioorganic & Medicinal Chemistry Letters
2014.0

Abstract

A new indole-4,9-dione and their phenoxy derivatives were synthesized and evaluated in vitro against the epimastigote form of Trypanosoma cruzi, Y strain. All of these novel compounds were found to be extremely potent and selective that the standard drug nifurtimox. Interestingly, phenoxyindole-4,9-dione 9d displayed excellent nanomolar inhibitory activity, IC50=20 nM, and high selectivity index, SI=625. In silico studies using MOE program were performed to generate a preliminary pharmacophore model.

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