中文摘要：

采用硅胶、Sephadex LH-20等多种材料进行分离纯化,通过理化方法和波谱分析进行结构鉴定,从垫状卷柏全草中分离并鉴定了两个炔酚类衍生物,分别为selaginellin S（1）和M（2）。其中,化合物1为新炔酚类衍生物,是炔酚类成分生源合成途径的关键前体物质;通过ECD计算确定了其绝对构型。化合物2为首次从该植物中报道。

英文摘要：

A new selaginellin derivative named as selaginellin S（1） was isolated from the whole plants of Selaginella pulvinata（Hook. et Grev.） Maxim.（Selaginellaceae）, together with a known one（selaginellin M, 2）. Compounds 1 and 2 were separated and purified by silica gel and Sephadex LH-20 column chromatography. Their structures were determined on the basis of extensive spectroscopic analysis including IR, MS, 1D and 2D NMR experiments, as well as ECD calculations. Compound 1 is a key intermidiant in the biosynthesis pathway of selaginellins. Compound 2 is first reported in this plant.