摘要
目的研究大花紫薇叶醋酸乙酯部位的化学成分。方法采用硅胶、Sephadex LH-20、MCI、HP20P柱层析对大花紫薇叶醋酸乙酯部位进行分离纯化,通过ESI-MS、NMR等光谱技术和化学方法鉴定所分离化合物的结构。结果从中分离得到7个化合物,分别为咖啡酸(caffeic acid,1)、咖啡酸乙酯(caffeic acid ethylester,2)、没食子酸乙酯(ethyl gallate,3)、6,7-二羟基香豆素(6,7-dihydroxy coumarin,4)、山萘酚(kaempferol,5)、槲皮素(quercetin,6)、金丝桃苷(hyperin,7)。结论7个化合物均为首次从该植物中获得。
Objective To study the chemical constituents from ethyl acetate extract from Lagerstroemia speciosa （Linn.） Pets leaves. Methods The extract was isolated and purified by chromatograph over silica gel, Sephadex LH - 20, MCI, HP20P column. Their chemical structures were elucidated by chemical methods and spectral data （ ESI - MS, NMR）. Results Eight compounds were isolated and identified as caffeic acid （ 1 ） . caffeic acid ethylester （ 2 ）, ethyl gallate （ 3 ）, 6,7 - dihydroxy coumarin （ 4 ）, kaempferol （5）, quercetin （6）, hyperin （7） respectively. Conclusion Compounds 1 - 7 were separated from the leaves of Lagerstroemia speciosa （ Linn. ） Pets for the first time.
出处
《时珍国医国药》
CAS
CSCD
北大核心
2009年第8期1841-1842,共2页
Lishizhen Medicine and Materia Medica Research
基金
国家自然科学基金(No.20602039)
上海市中药现代化专项(No.08DZ1971500)
关键词
大花紫薇
化学成分
结构鉴定
Lagerstroemia speciosa （Linn.） Pers
Chemical constituents
Structure identification
