Isolation and characterization of cardiac steroids from seeds of Elaeopendron glaucum Pers. Structures of elaeodendrosides A,D,E,H,I,J and elaeodendrogenin.
Six cardiac glycosides having a methylenedioxy group in the sugar moiety, elaeodendroside A, D, E, H, I and J, were isolated from seeds of Elaeodendron glaucum PERS. Their structures were elucidated on the basis of chemical correlation with elaeodendroside A, which was characterized by X-ray analysis. A new cradiac steroid named elaeodendrogenin was also isolated from the same plant materials and its structure was established by direct comparison with a synthetic sample obtained from digitoxigenin. The cardiac activities of these compounds were tested with Straub's preparation.
从胡颓子 PERS 种子中分离得到 6 种糖部分具有亚甲二氧基的强心苷,即胡颓子苷 A、D、E、H、I 和 J。根据与胡颓子苷 A 的化学相关性,阐明了它们的结构,并通过 X 射线分析对其进行了表征。还从相同的植物材料中分离出一种名为反树皂甙元的新颅内类固醇,并通过与从洋地黄毒甙元获得的合成样品直接比较来确定其结构。用斯特劳布的制剂测试了这些化合物的心脏活性。