浅裂鳞毛蕨中一个新二氢黄酮的分离和结构鉴定

目的：研究浅裂鳞毛蕨（Dryopteris sublaeta Ching et Hsu）的化学成分。方法：利用Diaion HP-20，Toyopearl HW-40，Sephadex LH-20，硅胶柱等色谱技术进行分离纯化，根据化合物的理化性质和光谱数据鉴定结构。结果：从浅裂鳞毛蕨中分离并鉴定了6个化合物，分别为：2（S）-5，7，3’-三羟基-6，8-二甲基-4’-甲氧基二氢黄酮，即3’-羟基荚果蕨素（1），荚果蕨素-7-O-β-D-葡萄糖苷（2），菠甾醇（3），菠甾醇-3-O-β-D-葡萄糖苷（4），谷甾醇（5），胡萝卜苷（6）。结论：化合物1为新化合物，化合物2，3，4为首次从鳞毛蕨属植物中分离得到。

Isolation and Structure Identification of a New Flavanone from Dryopteris sublaeta

AIM: To study the chemical constituents of Dryopteris sublaeta Ching et Hsu. METHOD: Water extraction, silica gel, Diaion HP-20, Toyopearl HW-40, Sephadex LH-20 column chromatography were used. The structures of isolated compounds were elucidated by various physiochemical and spectral data. RESULT: Six compounds were obtained and identified as 2(S)-5,7,3′- trihydroxy-6,8-dimethyl-4′-methoxy-flavanone (3′-hydroxy-matteucinol)(1), matteucinol-7-O-β-D-glucopyranoside (2), spinasterol (3), spinasterol-3-O-β-D-glucopyranoside (4), sitosterol (5) and daucosterol (6). CONCLUSION: Compound 1 is new; compounds 2, 3 and 4 were isolated from Dryopteris for the first time.