目的 研究青蒿素类衍生物的抗疟作用机制。方法 电子结构计算在B3LYP/6.31G*水平进行,反应路径计算在HF/STO-3G水平进行。结果 过氧桥键是青蒿素类化合物的活性中心,在Fe^2+影响下过氧键逐渐裂解,两个氧原子与Fe^2+以共价键结合形成环状加成产物。结论 青蒿素类衍生物可与亚铁血红素形成加成产物。
Aim To investigate antimalarial mechanism of Qinghaosu (QHS) and its derivatives. Methods The electronic structure of QHS and its derivatives were completely optimized and calculated at B3LYP/6-31G* level, while the route was at HF/STO-3G level. Results The peroxide bridge is the active center of QHS and induced by ferrous iron to produce cyclic product. Conclusion Heme can link with QHS derivatives.