中文摘要：

目的研究中药北刘寄奴（Siphonostegia chinensis Benth．）的化学成分。方法采用正相硅胶、反相ODS、Sephadex LH-20等柱色谱及高效液相色谱等手段进行分离纯化，并通过理化性质与光谱分析鉴定化合物的结构。结果从北刘寄奴体积分数为95％的乙醇提取物中分离了6个苯乙醇苷类单体成分，分别鉴定为去咖啡酰基类叶升麻苷（decaffeoylverbascoside，1）、acteoside（2）、isoac．teoside（3）、crenatoside（4）、口一oxoacteoside（5）和syringalideA3LOt—L—rhamnopyranoside（6）。结论其中化合物1、3～6为首次从阴行草属中分离得到。

英文摘要：

Objective To study the chemical constituents from whole plant of Siphonostegia chinensis Benth. Methods The compounds were isolated by chromatographic methods such as silica gel, ODS, Sephadex LH- 20 and HPLC, and identified by the chemical and physical methods, especially spectral analysis. Results Six phenylethanoid glycosides were isolated. The structures of them were identified as decaffeoylverbascoside （ 1 ）, acteoside （ 2 ）, isoacteoside （ 3 ）, crenatoside （ 4 ）, fl-oxoacteoside （ 5 ）, and syringalide A 3 ＇-t~-L-rham- nopyranoside（6）. Conclusions Among them,1 and 3-6 are obtained from Siphonostegia genus for the first time.