岭南山竹子叶三萜成分研究

Triterpenes from the Leaves of Garcinia oblongifolia

目的研究岭南山竹子叶的化学成分。方法利用正相硅胶、葡聚糖凝胶Sephadex LH-20等手段进行分离纯化,根据波谱数据鉴定化合物的结构。结果分离鉴定了5个三萜类成分,其结构分别是:5(6)-gluten-3α-ol(1),24-Methylenecycloart-3-one(2),木栓酮(3),表木栓醇(4),熊果酸(5)。结论均为首次从该种植物中分离得到。

Objective To study the chemical constituents of the leaves of Garcinia oblongifolia. Methods The compounds were isolated by column chromatography with silica gel, and Sephadex LH - 20, and their structures were elucidated by spectroscopic analysis. Results Five compounds were obtained and identified, which were 5 （6） - gluten - 3α - ol （ 1 ）, 24 - Methylenecycloart - 3 - one （ 2）, fiedelin （ 3 ）, epi - friedelanol （4）, ursolic acid （5）. Conclusion All the compounds were isolated from plant for the first time.