[关键词]
[摘要]
目的 研究水葱Schoenoplectus tabernaemontani根茎的化学成分。方法 采用硅胶、聚酰胺、ODS、Sephadex LH-20等柱色谱进行分离纯化，根据理化性质及核磁共振波谱数据鉴定化合物的结构。结果 从水葱根茎水提取物中分离得到12个化合物，分别鉴定为5，7，2'，4'-四羟基-3，5'-二甲氧基黄酮（1）、苜蓿素（2）、橙皮素（3）、槲皮素（4）、木犀草素（5）、圣草素（6）、芹菜素（7）、柚皮素（8）、白杨素（9）、5，7-二羟基色原酮（10）、儿茶素（11）、苜蓿素-7-O-β-D-葡萄糖苷（12）。结论 化合物1为新化合物，命名为水葱素；化合物2~5、7~12为首次从莎草科植物中分离得到，化合物6为首次从藨草属植物中分离得到。
[Key word]
[Abstract]
Objective To study the chemical constituents of the rhizomes of Schoenoplectus tabernaemontani. Methods Compounds were isolated and purified by a combination of column chromatography including silica gel, polyamide and Sephadex LH-20. Their structures were elucidated by physiochemical properties and NMR analysis. Results Twelve compounds were obtained from water extract of the rhizome of S. tabernaemontani and identified as 5,7,2',4'-tetrahydroxy-3, 5'-dimethoxyflavone (1), tricin (2), hesperetin (3), quercetin (4), luteolin (5), eriodictyol (6), apigenin (7), naringenin (8), chrysin (9), 5,7-dihydroxychromone (10), catechin (11) and tricin-7-O-β-D-glucoside (12), respectively. Conclusions Compound 1 is a new flavone named schoenin. Compounds 2-5 and 7-12 are isolated from the Cyperaceae for the first time. Compound 6 is isolated from the genus Scirpus for the first time.
[中图分类号]
R284.1
[基金项目]
湖南省教育厅科学研究项目（19C0148）；湖南省科教联合基金项目（2020JJ7096）
