117987-01-6Relevant academic research and scientific papers
Bioisosteric transformations and permutations in the triazolopyrimidine scaffold to identify the minimum pharmacophore required for inhibitory activity against plasmodium falciparum dihydroorotate dehydrogenase
Marwaha, Alka,White, John,El-mazouni, Farah,Creason, Sharon A,Kokkonda, Sreekanth,Buckner, Frederick S.,Charman, Susan A.,Phillips, Margaret A.,Rathod, Pradipsinh K.
, p. 7425 - 7436 (2012/11/07)
Plasmodium falciparum causes approximately 1 million deaths annually. However, increasing resistance imposes a continuous threat to existing drug therapies. We previously reported a number of potent and selective triazolopyrimidine-based inhibitors of P.
DIHYDROOROTATE DEHYDROGENASE INHIBITORS WITH SELECTIVE ANTI-MALARIAL ACTIVITY
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Page/Page column 32, (2009/07/25)
Compounds according to Formula (I), Formula (II), Formula (III), Formula (V), Formula (VI), or to Formula (VII), and pharmaceutical compositions of compounds that conform to Formula (IV) or (Formula VIII): where R1 through R33 are prescribed, selectively inhibit P. falciparum dihydroorotate dehydrogenase. Accordingly, a method for preventing and treating malaria attaches to such compounds, as well as to pharmaceutically acceptable salts, solvates, stereoisomers, tautomers, and prodrugs thereof.
Xanthine oxidase (XO): Relative configuration of complexes formed by the enzyme, 2- or 8-N-alkylhypoxanthines and 2-N-alkyl-8-azahypoxanthines. XII
Biagi,Giorgi,Livi,Scartoni,Tonetti,Lucacchini
, p. 357 - 374 (2007/10/02)
Several 2- or 8-n-alkyl-hypoxanthines and a 2,8-di-n-pentylhypoxanthine were synthesized and tested as substrates or inhibitors of Xanthine Oxidase (XO). 8-Alkyl derivatives showed a substrate behaviour, whereas 2-alkyl substituted compounds were non-substrates and inhibitors. 2,8-di-n-pentylhypoxanthine was ineffective as inhibitor. The comparison between their activity allowed us to conclude that the complexes formed by the enzyme and the cited n-alkylhypoxanthines or 2-n -alkyl-8-azahypoxanthines involve their N(3) and N(9) positions in all the cases. The position of the n-alkyl chain determines the disposition of the molecule inside the complex: 2-n-alkyl-hypoxanthines and 2-n-alkyl-8-azahypoxanthines gave complexes with the same orientation of heterocyclic moieties, opposite that given by 8-n-alkyl-hypoxanthines.
