1316889-31-2Relevant articles and documents
Potent antimalarial 1,2,4-trioxanes through perhydrolysis of epoxides
Hao, Hong-Dong,Wittlin, Sergio,Wu, Yikang
, p. 7605 - 7619 (2013)
Perhydrolysis of a sterically congested multifunctional epoxide was achieved in ethereal H2O2 with the aid of a recently developed Mo catalyst. The resulting hydroperoxide cyclized to give a 1,2,4-trioxane, which could be readily elaborated into qinghaosu and a range of novel analogues. Some of the compounds with two such trioxane moieties showed in vitro antimalarial activity comparable to or even better than that of artesunate or chloroquine. Molybdenum magic: Facile perhydrolysis of a highly hindered epoxide was achieved with the aid of a molybdenum catalyst. The resulting hydroperoxide was readily converted into a 1,2,4-trioxane, from which natural qinghaosu (QHS, or artemisinin; see scheme) and a range of analogues were constructed. Some of the newly accessed trioxanes showed in vitro antimalarial activity comparable to or even better than that of chloroquine and artesunate. Copyright
