中文摘要：

目的对葱属科植物韭菜的韭菜根中化学成分进行研究。方法取阴干的韭菜根,粉碎后用甲醇提取3次,合并甲醇液,减压回收甲醇后所得浸膏用水分散。然后依次采用石油醚、乙酸乙酯和正丁醇萃取,通过NMR和MS等波谱学数据分析进行结构鉴定。结果本实验从韭菜根中分离了9个化合物,经波谱学方法分别鉴定为：4,8-二羟基苯乙酮-8-O-阿魏酸酯（1）,4,8-二羟基苯乙酮（2）,3,4,5-三甲氧基苯甲酸（3）,3,4,5-三甲氧基苯丙烯酸（4）,醉鱼草醇D（5）,E-1,6,11-三烯-4,5,9-三硫杂十二烷-9,9-二氧化物（6）,天师酸（7）,胡萝卜苷（8）和亚油酸（9）。结论其中化合物1为新化合物,化合物2~5首次从韭菜中分离得到。

英文摘要：

OBJECTIVE To investigate the chemical constituents in the roots of Allium tuberosum.METHODS Colum chromatography with different materials such as silica gel was used to isolate and purify the chemical constituents.Their structures were identified by spectroscopic analysis.RESULTS Nine compounds were isolated from the roots of Allium tuberosum and their structures were identified as 4,8-dihydroxyacetophenone-8-O-ferulate（1）,4,8-dihydroxyacetophenone（2）,3,4,5-trimethoxybenzoic acid（3）,3,4,5-trimethoxycinnamic acid（4）,buddlenol D（5）,E-1,6,11-triene-4,5,9-trithiadodeca-9,9-dioxide（6）,tianshic acid（7）,daucosterol（8）,and linoleic acid（9）.CONCLUSION Compound 1 is a new compound and compounds 2-5 are obtained from Allium tuberosum for the first time.