Synthesis and biological activity of diaryl ether inhibitors of malarial enoyl acyl carrier protein reductase. Part 2: 2′-Substituted triclosan derivatives
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2'-Substituted analogs of triclosan have been synthesized to target inhibition of the key malarial enzyme Plasmodium falciparum enoyl acyl carrier protein reductase (PfENR). Many of these compounds exhibit good potency (EC50<500 nM) against in vitro cultures of drug-resistant and drug-sensitive strains of the P. falciparum parasite and modest (IC50=1-20 microM) potency against purified PfENR enzyme. Compared to triclosan, this survey of 2'-substituted derivatives has afforded gains in excess of 20- and 30-fold versus the 3D7 and Dd2 strains of parasite, respectively.
author list (cited authors)
Freundlich, J. S., Yu, M., Lucumi, E., Kuo, M., Tsai, H., Valderramos, J., ... Sacchettini, J. C.