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Spiroadamantyl 1,2,4-Trioxolane, 1,2,4-Trioxane, And 1,2,4-Trioxepane Pairs: Relationship Between Peroxide Bond Iron(Ii) Reactivity, Heme Alkylation Efficiency, And Antimalarial Activity, Xiaofang Wang, Darren J. Creek, Charles E. Schiaffo, Yuxiang Dong, Jacques Chollet, Christian Scheurer, Segio Wittlin, Susan A. Charman, Patrick Dussault, James K. Wood, Jonathan L. Vennerstrom
Spiroadamantyl 1,2,4-Trioxolane, 1,2,4-Trioxane, And 1,2,4-Trioxepane Pairs: Relationship Between Peroxide Bond Iron(Ii) Reactivity, Heme Alkylation Efficiency, And Antimalarial Activity, Xiaofang Wang, Darren J. Creek, Charles E. Schiaffo, Yuxiang Dong, Jacques Chollet, Christian Scheurer, Segio Wittlin, Susan A. Charman, Patrick Dussault, James K. Wood, Jonathan L. Vennerstrom
Patrick Dussault Publications
These data suggest that iron(II) reactivity for a set of homologous spiroadamantyl 1,2,4-trioxolane, 1,2,4-trioxane, and 1,2,4-trioxepane peroxide heterocycles is a necessary, but insufficient, property of animalarial peroxides. Heme alkylation efficiency appears to give a more accurate prediction of antimalarial activity than FeSO4-mediated reaction rates, suggesting that antimalarial activity is not merely dependent on peroxide bond cleavage, but also on the ability of reactive intermediates to alkylate heme or other proximal targets.