目的 研究岩凤尾蕨Pteris deltodon全草的化学成分。方法 使用硅胶柱色谱、Sephadex LH-20及半制备高效液相色谱法等手段进行分离纯化,通过光谱数据结合参考文献鉴定化合物结构。结果 从岩凤尾蕨全草95%乙醇提取部位分离到9个化合物,分别鉴定为β-谷甾醇(1)、过氧麦角甾醇(2)、2β,15α-二羟基-对映-贝壳杉-16-烯(3)、3β,25-二羟基-环阿尔廷-23-烯(4)、3β,24-二羟基-环阿尔廷-25-烯(5)、大黄素(6)、1,7-二羟基 酮(7)、熊果酸(8)、麦角甾醇(9)。结论 所有化合物均首次从该植物中分离到,化合物4和5为首次从凤尾蕨属植物分离到的环阿尔廷烷型三萜。

Objective To study the chemical constituents in the whole plant of Pteris deltodon. Methods Nine compounds were isolated from 95% ethanol extract in the whole plant of P. deltodon and purified by silica gel chromatography, Sephadex LH-20, and pre-HPLC, and their structures were identified on the basis of spectroscopic data and literatures. Results Nine compounds were isolated and elucidated as β-sitosteol (1), (22E)-5α,8α-epidioxyergosta-6,22-dien-3β-ol (2), ent-kaur-16-ene-2β,15α-diol (3), cycloart-23-en-3β,25-diol (4), cycloart-25-en-3β,24-diol (5), emodin (6), 1,7-dihydroxyxanthone (7), ursolic acid (8), and ergosterol (9). Conclusion All the compounds are for the first time isolated from P. deltodon; Compound 4 and 5 are cycloartanes first isolated from genus Pteris L.

国家自然科学基金资助项目(81160496);贵州省科学技术基金项目(黔科合J字 [2013] 2070号)