白花蛇舌草化学成分的研究

Studies on the Constituents of Oldenlandia diffusa

采用聚酰胺、Sepphadex LH-20、硅胶等多种色谱柱对白花蛇舌草的化学成分进行分离纯化，并根据化合物的理化性质和光谱数据鉴定其结构为：去乙酰车叶草甙（1）、车叶草甙（2）、鸡屎藤甙甲酯（3）、车叶草酸（4）、去乙酰车叶草酸甲酯（5）和dapbylloside（6）。其中化合物6为首次从该属植物中分离得到，化合物1,5、6为首次从该种植物中得到。

Polyamide colunm chromatography（c, c. ）, Sephadex LH-20 c. c., silica gel c. c. et al. were used to separate and purify the chemical components of Oldenlandia diffusa, the structures were elucidated on the basis of physic-chemical properties and spectral data. Five comnpounds were isolated and identified as deacetyl asperuloside（1）, aspemloside （2）, scandoside methyl ester（3）, aspemlosidic acid（4）, deacetyl aspemlosidic acid methyl ester（5） and daphylloside. Compound 6 was isolated from this geaua for the first time and compounds 1,5,6 were obtained from this plant for the first time.