来自匙羹藤和地锦草的两种新黄酮醇苷。
Two new flavonol glycosides from Gymnema sylvestre and Euphorbia ebracteolata.
作者信息
Liu Xin, Ye Wencai, Yu Biao, Zhao Shouxun, Wu Houming, Che Chuntao
机构信息
Department of Natural Product Chemistry, China Pharmaceutical University, Nanjing 210009, China.
出版信息
Carbohydr Res. 2004 Mar 15;339(4):891-5. doi: 10.1016/j.carres.2003.12.017.
Two new flavonol glycosides, namely kaempferol 3-O-beta-D-glucopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->6)-beta-D-galactopyranoside (1) and quercetin 3-O-6"-(3-hydroxyl-3-methylglutaryl)-beta-D-glucopyranoside (2), have been isolated from the aerial parts of Gymnema sylvestre and Euphorbia ebracteolata, respectively. Their structures were determined on the basis of chemical and spectroscopic methods.
从匙羹藤和地锦的地上部分分别分离得到了两种新的黄酮醇苷，即山奈酚3 - O - β - D - 吡喃葡萄糖基 - (1→4) - α - L - 吡喃鼠李糖基 - (1→6) - β - D - 吡喃半乳糖苷（1）和槲皮素3 - O - 6" - (3 - 羟基 - 3 - 甲基戊二酰基) - β - D - 吡喃葡萄糖苷（2）。它们的结构通过化学和光谱方法确定。
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