摘要
目的研究半边莲Lobelia chinensis的化学成分。方法用硅胶、MCI、ODS、Sephadex LH-20、制备液相等多种色谱技术进行化合物的分离纯化,并通过多种波谱分析方法鉴定化合物的结构。结果从半边莲95%乙醇提取物中分离鉴定了15个化合物,其中12个黄酮类化合物:槲皮素(1)、芦丁(2)、木犀草素(3)、芹菜素(4)、橙皮苷(5)、槲皮素-3-O-α-L-鼠李糖苷(6)、槲皮素-7-O-α-L-鼠李糖苷(7)、槲皮素-3-O-β-D-葡萄糖苷(8)、穗花杉双黄酮(9)、柚皮素(10)、橙皮素(11)、泽兰黄酮(12);3个香豆素类化合物:5,7-二甲氧基香豆素(13)、异东莨菪素(14)、蒿属香豆素(15)。结论化合物6~12为首次从半边莲属植物中分离得到,化合物5、13、14为首次从半边莲中分离得到。
Objective To investigate the chemical constituents in the dried whole plant of Lobelia chinensis. Methods Column chromatography, such as silica gel, MCI, ODS, Sephadex LH-20, C18 reverse-phased silica gel columns, and preparative HPLC were used to isolate the compounds. Spectroscopic methods like MS, IH-NMR, and 13C-NMR were used to elucidate their structures. Results Fifteen compounds were isolated from 95% ethanol extract of L. chinensis, including twelve flavonoids: quercetin (1), rutin (2), luteolin (3), apigenin (4), hesperidin (5), quercetin-3-O-a-L-rhamnoside (6), quercetin-3-O-a-L-rhamnoside (7), quercetin-3- O-β-D-glucoside (8), amentoflavone (9), naringenin (10), hesperetin (11), and eupafolin (12), and three coumarins: 5, 7- dimethoxy-coumarin (13), isoscopoletin (14), and scoparone (15). Conclusion Compounds 6-12 are isolated from the plants in genus Lobelia L. for the first time, Compounds 5, 13, and 14 are isolated from L. chinensis for the first time.
出处
《中草药》
CAS
CSCD
北大核心
2013年第7期794-797,共4页
Chinese Traditional and Herbal Drugs
基金
江苏省自然科学基金青年基金项目(BK2012351)