盔瓣耳叶苔化学成分研究

Studies on chemical constituents of Frullania muscicola

目的 研究耳叶苔科植物盔瓣耳叶苔 Frullania muscicola Steph.的化学成分。方法 用硅胶、SephadexL H - 2 0柱层析 ,通过理化性质鉴定及光谱数据分析确定化合物的结构。结果 分离到 3个甾体化合物和 4个黄酮化合物 ,分别鉴定为豆甾醇二十烷酸酯 ( )、谷甾醇 ( )、洋芹素 - 7,4′-二甲醚 ( )、黄芩素 - 6 ,4′-二甲醚 ( )、6 -羟基木犀草素 - 6 ,3′-二甲醚 ( )、黄芩素 - 6 -甲醚 ( )和胡萝卜苷 ( )。结论 化合物 为新化合物 ,其余 6个化合物均为首次从该植物中分得。

Object To study the chemical constituents of Frullania muscicola Steph (Frullaniaceae) Methods Seven compounds were obtained from the petroleum ether extract of F muscicola by repeated chromatography over silica gel and Sephadex LH 20 Their structures were identified by analysis of their spectral data and chemical reactions Results Three steroids and four flavonoids had been isolated and their structures were identified as: stigmasterol arachidate (Ⅰ), sitosterol (Ⅱ), apigenin 7, 4′ dimethyl ethers (Ⅲ), scutellarin 6, 4′ dimethyl ethers (Ⅳ), 6 hydroxyluteolin 6, 3′ dimethyl ethers (Ⅴ), scutellarin 6 methyl ether (Ⅵ), and daucosterol (Ⅶ) Conclusion Compound I was new and the other six were obtained from this plant for the first time