中文摘要：

目的：研究凤尾草的化学成分。方法：应用硅胶、SephadexLH-20等柱色谱对凤尾草的化学成分进行分离、纯化,根据理化常数和光谱分析鉴定其结构。结果：从凤尾草中分离鉴定了8个化合物,分别为去咖啡酰基洋丁香苷（1）、肉丛蓉苷F（2）、洋丁香苷（3）、2β,14β,15α-trihydroxy-ent-kaur-16-ene（4）、2β,13β,14β,15α-tetrahydroxy-ent-kaur-16-ene（5）、7-羟基香豆素（6）、β-谷甾醇（7）、胡萝卜苷（8）。化合物1～6为首次从该植物中分离得到,化合物1、2、3、6为首次从该属中分离得到。结论：本试验结果可为凤尾草活性的进一步研究奠定基础。

英文摘要：

OBJECTIVE：To study the chemical constituents of Pteris multifida.METHODS：Compounds were isolated by silica gel and Sephadex LH-20 column chromatography and purified by recrystallization.Their structures were elucidated by spectral analysis and physicochemical properties.RESULTS：Eight compounds were isolated and identified as decaffeoylactecoside（1）,cistanoside F（2）,acteoside（3）,2β,14β,15α-trihydroxy-ent-kaur-16-ene（4）,2β,13β,14β,15α-tetrahydroxy-ent-kaur-16-ene（5）,7-hydroxy coumarin（6）,β-sitosterol（7）,daucosterol（8）.Compounds 1～6 were separated from the plant for the first time and compounds 1,2,3 and 6 were separated from the genus for the first time.CONCLUSION：The trial result lays a foundation for the activity study of P.multifida.