叶穗香茶菜地下部分化学成分研究

Chemical Constituents from the Underground Parts of Isodon phyllostachys

目的：研究叶穗香茶菜地下部分的主要化学成分。方法：采用硅胶、葡聚糖凝胶和反相材料色谱法分离纯化,利用现代波谱技术进行结构鉴定。结果：从石油醚部分中分离鉴定了4个化合物,分别是甘油三亚油酸酯（1）、二十六烷醇（2）、β-谷甾醇（3）、3β-羟基-5α,8α-桥二氧麦角甾-6,22E-二烯（4）。结论：化合物1~4均为首次从叶穗香茶菜地下部分获得。

Objective： To explore the chemical constituents from the underground parts of Isodon phyllostachys.Methods： The compounds were isolated by using column chromatography with silica gel,Sephadex LH-20,and RP-18.The structures of the resulting compounds were elucidated by means of spectroscopic methods.Results： Four compounds were isolated from the petroleum ether extract of underground parts of I.phyllostachys,and were identified to be trilinolein（1）,1-hexacosanol（2）,β-sitosterol（3）,and 5,8-epidioxy-5α,8α-ergosta-6,22E-dien-3β-ol（4）.Conclusion： Compounds 1-4 were isolated from the underground parts of I.phyllostachys for the first time.