Lead Optimization of Aryl and Aralkyl Amine-Based Triazolopyrimidine Inhibitors ofPlasmodium falciparumDihydroorotate Dehydrogenase with Antimalarial Activity in Mice
Citations Over TimeTop 10% of 2011 papers
Abstract
Malaria is one of the leading causes of severe infectious disease worldwide; yet, our ability to maintain effective therapy to combat the illness is continually challenged by the emergence of drug resistance. We previously reported identification of a new class of triazolopyrimidine-based Plasmodium falciparum dihydroorotate dehydrogenase (PfDHODH) inhibitors with antimalarial activity, leading to the discovery of a new lead series and novel target for drug development. Active compounds from the series contained a triazolopyrimidine ring attached to an aromatic group through a bridging nitrogen atom. Herein, we describe systematic efforts to optimize the aromatic functionality with the goal of improving potency and in vivo properties of compounds from the series. These studies led to the identification of two new substituted aniline moieties (4-SF(5)-Ph and 3,5-Di-F-4-CF(3)-Ph), which, when coupled to the triazolopyrimidine ring, showed good plasma exposure and better efficacy in the Plasmodium berghei mouse model of the disease than previously reported compounds from the series.
Related Papers
- → Triazolopyrimidine-Based Dihydroorotate Dehydrogenase Inhibitors with Potent and Selective Activity against the Malaria Parasite Plasmodium falciparum(2008)202 cited
- → The development of quinoloneesters as novel antimalarial agents targeting the Plasmodium falciparum bc1protein complex(2011)38 cited
- → Recent advances on patents of Plasmodium falciparum dihydroorotate dehydrogenase ( Pf DHODH) inhibitors as antimalarial agents(2023)14 cited
- → A potent antimalarial activity of 5-fluoroorotate in combination with sulfamonomethoxine against Plasmodium falciparum in vitro and Plasmodium berghei in mice(1998)1 cited
- The synthesis of potential inhibitors of Dihydroorotate dehydrogenase from the malaria parasite Plasmodium falciparum.(2004)