黄桐树皮的化学成分研究

Chemical Constituents from Barks of Endospermum chinense Benth.

从黄桐(Endospermum chinense Benth.)树皮中分离获得了10个化合物。通过光谱分析,分别鉴定为3-羰基齐墩果酸(1)、齐墩果酸(2)、7-羰基谷甾醇(3)、β-谷甾醇(4)、β-胡萝卜甙(5)、7-羰基-β-胡萝卜甙(6)、4-羟基-3-甲氧基苯甲醛(7)、7-羟基-6-甲氧基香豆素(8)、3-羟基-4-甲氧基苯甲酸(9)和壬二酸(10)。10个化合物均为首次从黄桐树皮中分离得到。

Ten chemical constituents were isolated from barks ofEndospermum chinense Benth. On the basis of spectral data, they were identified as 3-oxo-12-oleanen-28-oic acid （1）, oleanolic acid （2）, 7-oxo-β-sitosterol （3）, β-sitosterol （4）, β-daucosterol （5）, 7-ketone-β-daucosterol （6）, 4-hydroxy-3-methoxybenzaldehyde （7）, scopoletin （8）, 3-hydroxy-4-methoxybenzoic acid （9） and nonanedioic acid （10）. All these compounds were obtained from the species for the first time.