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[摘要]
目的 研究翠云草Selaginella uncinata全草的化学成分。方法 采用大孔吸附树脂、硅胶、Sephadex LH-20、高效液相色谱等柱色谱方法进行分离纯化,通过NMR、HR-ESI-MS等技术鉴定化合物的结构。结果 从翠云草全草75%乙醇水提取物中分离得到1个新的双黄酮类化合物,鉴定为4',7″-二甲氧基-2″,3″-二氢南方贝壳杉双黄酮(1)。结论 化合物1 为新的南方贝壳杉型的双黄酮类化合物,命名为翠云草双黄酮。
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[Abstract]
Objective To investigate the chemical constituents from the whole plants of Selaginella uncinata. Methods The compound was isolated and purified by macroporous resin, silica gel, and Sephadex LH-20 column chromatography, as well as preparative HPLC. Its structure was identified on the basis of spectroscopic techniques including UV, IR, 1D-, 2D-NMR, and HR-ESI-MS. Results One biflavonoid was isolated from the 75% ethanol aqueous extract and identified as 4',7″-di-O-methyl-2″,3″-dihydrorobustaflavone (1). Conclusion Compound 1 is a new biflavonoid named uncibiflavone.
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[基金项目]
国家自然科学基金项目(31370370)