目的 研究香鳞毛蕨Dryopteris fragrans全草的化学成分。方法 采用各种柱色谱方法分离，通过理化鉴别及波谱分析技术鉴定化合物的结构。结果 从香鳞毛蕨全草水提取物中分离得到3个化合物，分别鉴定为2-异丙基-5，7-二羟基- 1’-O-β-D-吡喃葡萄糖基色原酮苷（1）、（6R，9R）-3-酮-α-紫罗兰醇-9-O-β-D-吡喃葡萄糖苷（2）和红豆杉苷（3）。结论 化合物1为新化合物，命名为香蕨色原酮B，化合物2和3为首次从该科植物中分离得到。

Objective To study the chemical constituents from the whole plants of Dryopteris fragrans. Methods The chemical constituents were isolated by various column chromatographic methods. The structures of the compounds were elucidated on the basis of physiochemical properties and spectral analyses. Results Three compounds named 2-isopropyl-5, 7-dihydroxy-1'-O-β-D- glucopyranosyl chromone (1), (6R, 9R)-3-oxo-α-ionol-9-O-β-D-glucopyranoside (2), and taxicatin (3) were isolated and identified. Conclusion Compound 1 is a new compound named frachromone B, compounds 2 and 3 are reported for the first time from family Dryopteridaceae.

北京市自然科学基金资助项目（7144200）