Klug, DM;
Mavrogiannaki, EM;
Forbes, KC;
Silva, L;
Diaz-Gonzalez, R;
Pérez-Moreno, G;
Ceballos-Pérez, G;
... Pollastri, MP; + view all
(2021)
Lead Optimization of 3,5-Disubstituted-7-Azaindoles for the Treatment of Human African Trypanosomiasis.
Journal of Medicinal Chemistry
, 64
(13)
pp. 9404-9430.
10.1021/acs.jmedchem.1c00674.
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Abstract
Neglected tropical diseases such as human African trypanosomiasis (HAT) are prevalent primarily in tropical climates and among populations living in poverty. Historically, the lack of economic incentive to develop new treatments for these diseases has meant that existing therapeutics have serious shortcomings in terms of safety, efficacy, and administration, and better therapeutics are needed. We now report a series of 3,5-disubstituted-7-azaindoles identified as growth inhibitors of Trypanosoma brucei, the parasite that causes HAT, through a high-throughput screen. We describe the hit-to-lead optimization of this series and the development and preclinical investigation of 29d, a potent antitrypanosomal compound with promising pharmacokinetic (PK) parameters. This compound was ultimately not progressed beyond in vivo PK studies due to its inability to penetrate the blood-brain barrier (BBB), critical for stage 2 HAT treatments.
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