Abstract
(1H-Pyridin-4-ylidene)amines containing lipophilic side chains at the imine nitrogen atom were prepared as potential clopidol isosteres in the development of antimalarials. Their antiplasmodial activity was evaluated in vitro against the Plasmodium falciparum W2 (chloroquine-resistant) and FCR3 (atovaquone-resistant) strains. The most active of these derivatives, 4m, had an IC50 of 1 μM against W2 and 3 μM against FCR3. Molecular modeling studies suggest that (1H-pyridin-4-ylidene)amines may bind to the ubiquinol oxidation Qo site of cytochrome bc1.
Original language | English |
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Pages (from-to) | 3476-3480 |
Number of pages | 5 |
Journal | Bioorganic and Medicinal Chemistry Letters |
Volume | 19 |
Issue number | 13 |
DOIs | |
Publication status | Published - 1 Jul 2009 |
Externally published | Yes |
Funding
This work was supported by Fundação para a Ciência e Tecnologia (FCT, Portugal); T.R. acknowledges FCT for the Ph.D. grant SFRH/BD/30689/2006. P.J.R. is a Doris Duke Charitable Foundation Distinguished Clinical Scientist.
Funders | Funder number |
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FCT - Fundação para a Ciência e a Tecnologia | SFRH/BD/30689/2006 |
Keywords
- (1H-Pyridin-4-ylidene)amines
- Antiplasmodial