冬青属苦丁茶中的三萜及其皂苷类化合物

Triterpenoid Saponins From Kudingcha Plants of Genus Ilex

目的以两种作为“苦丁茶”饮用的冬青属植物为对象,介绍了其中所含的三萜及其皂苷类化合物。方法综述国内外文献报道,分别将大叶冬青(Ilex latifolia)和苦丁茶冬青(Ilex kud incha)中所含的三萜及其皂苷类化合物按苷元结构和糖基不同进行区分。结果与结论在大叶冬青中分离鉴定了13种三萜皂苷和7种三萜苷元;在苦丁茶冬青中分离鉴定了21种三萜皂苷和18种三萜苷元。所有25种苷元均属于五环三萜结构,在苦丁茶冬青的三萜苷元中发现了8种乌苏酸型的苦丁内酯结构,而在大叶冬青中尚未见报导这种内酯结构。

OBJECTIVE Triterpenes and triterpenoid saponins in two species of Genus Ilex,namely Ilex latifolia and Ilex kudincha that are widely used as a kind of popular tea 'Kudingcha' in China,were introduced.METHODS The recent investigations were reviewed,and the triterpenoid saponins were distinguished according to their differences on sapogenin structure and glycons. RESULTS AND CONCLUSION 13 triterpenoid saponins and 7 triterpene sapogenins were found from the leaves and barks of Ilex latifolia,and 21 triterpenoid saponins and 18 triterpene sapogenins from the leaves of Ilex kudincha.All of these 25 sapogenins were belonged to pentacyclic triterpenoids.Eight kinds of kudinlactones of ursolic acid type were found in Ilex kudincha,but none was reported in Imex latifolia.