Synthesis, Structure, and Antimalarial Activity of Tricyclic 1,2,4-Trioxanes Related to Artemisinin
作者:Charles W. Jefford、Javier A. Velarde、G�rald Bernardinelli、Dorothy H. Bray、David C. Warhurst、Wilbur K. Milhous
DOI:10.1002/hlca.19930760804
日期:1993.12.15
The anti-malarial activity of all trioxanes, except 37 and 38, was evaluated in vitro against chloroquine-sensitive and chloroquine-resistant Plasmodium falciparum parasites. Trioxanes 11 and 21 were as active as artemisinin (1). It was found that neither the lactone function nor rings B and D of 1 were essential for activity. A possible pharmacophore for artemisinin-like activity, which embodies a
两套包含ABC(三环1,2,4-三恶烷的10,11)和ACD环部(21,22,32,33,37,和38青蒿素)(1通过的连续光充氧合成) 1,2-二恶烷的合适烯醇醚前体以及与羰基化合物或羰基取代的侧链的分子间和分子内反应。的结构10,21,和22分别通过X射线分析测定。评价了除37和38外的所有三恶烷的抗疟活性在体外对氯喹敏感和耐氯喹的恶性疟原虫寄生虫具有抗药性。三恶烷11和21具有与青蒿素(1)一样的活性。发现内酯功能和B和D环1都不是活性所必需的。提出了一种可能的药效基团,用于青蒿素样活性,体现了与1,2,4-三恶烷的C(3)相连的螺环戊烷基团。