Lead optimization of aryl and aralkyl amine-based triazolopyrimidine inhibitors of Plasmodium falciparum dihydroorotate dehydrogenase with antimalarial activity in mice.
J Med Chem
; 54(11): 3935-49, 2011 Jun 09.
Article
en En
| MEDLINE
| ID: mdl-21517059
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.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Plasmodium berghei
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Plasmodium falciparum
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Pirimidinas
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Triazoles
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Oxidorreductasas actuantes sobre Donantes de Grupo CH-CH
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Inhibidores Enzimáticos
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Malaria
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Antimaláricos
Límite:
Animals
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Humans
Idioma:
En
Revista:
J Med Chem
Asunto de la revista:
QUIMICA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Estados Unidos