在寻找对癌症有治疗作用的天然产物的过程中,作者从番荔枝科紫玉盘属植物 U.hamiltonii Hook.f et th.茎和叶中分离得到4个具有生物活性的黄酮类化合物。另外还得到一个△~5-四氢呫吨的高度取代的同系物。这些化合物分别鉴定为:hamiltone A(6-羟基-5,7,4′-三甲氧基黄酮)(1);hamiltoneB(3′,4′-二羟基-5,6,7-三甲氧基黄酮)(2); In the search for natural products that have therapeutic effects on cancer, the authors isolated four biologically active flavonoids from the stems and leaves of U. hamiltonii Hook.f et th. A highly substituted homologue of Δ~5-tetrahydroxanthene was also obtained. These compounds were identified as: hamiltone A (6-hydroxy-5,7,4’-trimethoxyflavone) (1); hamiltone B (3’,4’-dihydroxy-5,6,7-trimethoxyflavone) )(2);