一种从甜叶菊叶子中提取的新型酰化槲皮素糖苷。
A new acylated quercetin glycoside from the leaves of Stevia rebaudiana Bertoni.
作者信息
Li Jun, Jiang Hua, Shi Renbing
机构信息
College of Chemistry and Pharmaceutical Engineering, Henan University of Science and Technology, Luoyang, China.
出版信息
Nat Prod Res. 2009;23(15):1378-83. doi: 10.1080/14786410802447294.
A new acylated quercetin glycoside quercetin-3-O-(4'''-O-trans-caffeoyl)-alpha-L-rhamnopyranosyl-(1-->6)-beta-D-galacopyranoside (1), along with luteolin (2), quercetin (3), luteolin-7-O-beta-D-glucoside (4), apigenin-7-O-beta-D-glucoside (5), quercitrin (6), quercetin-3-O-beta-D-arabinoside (7) and 4,5-di-O-caffeoyl quinic acid (8) have been isolated from the leaves of Stevia rebaudiana Bertoni. The structures of these compounds were determined by spectroscopic methods (1H- and 13C-NMR, IR and MS) and by 2D-NMR experiments.
从甜叶菊（Stevia rebaudiana Bertoni）的叶子中分离出了一种新的酰化槲皮素糖苷槲皮素-3-O-(4'''-O-反式咖啡酰基)-α-L-鼠李吡喃糖基-(1→6)-β-D-吡喃半乳糖苷（1），以及木犀草素（2）、槲皮素（3）、木犀草素-7-O-β-D-葡萄糖苷（4）、芹菜素-7-O-β-D-葡萄糖苷（5）、槲皮苷（6）、槲皮素-3-O-β-D-阿拉伯糖苷（7）和4,5-二-O-咖啡酰奎宁酸（8）。这些化合物的结构通过光谱方法（1H-和13C-NMR、IR和MS）以及二维NMR实验确定。
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