[A new flavonol glycoside from Baeckea Frutescens L].
[A new flavonol glycoside from Baeckea Frutescens L].
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发表时间：
2008-10
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通讯作者：
Wen-jie Lu;Qi Ya;Jia-yuan Chen;Burning Liu
中科院分区：
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作者：
Wen-jie Lu;Qi Ya;Jia-yuan Chen;Burning Liu
研究传统中药 Baeckea Frutescens L. 的化学成分，这是一种新的黄酮醇苷，命名为 6, 8-二甲基山奈酚-3-O-α-L-鼠李糖苷 (1)，以及七种已知化合物：槲皮素 (2)、槲皮素-3-O-α-L-鼠李糖苷 (3)、杨梅素 (4)，采用硅胶柱色谱、聚酰胺柱色谱和重结晶分离杨梅素-3-O-α-L-鼠李糖苷（5）、没食子酸（6）、熊果酸（7）和1,3-二羟基-2-（2'-甲氧基丙酰基）-5-甲氧基-6-甲基苯（8）。根据物理化学性质和光谱分析鉴定了它们的结构。其中化合物2-7为首次从该植物中分离得到，化合物8为首次从该植物中分离得到。
To study the chemical constituents of the traditional Chinese herb Baeckea Frutescens L., a new flavonol glycoside, named 6, 8-dimethylkaempferol-3-O-alpha-L-rhamnoside (1), together with seven known compounds: quercetin (2), quercetin-3-O-alpha-L-rhamnoside (3), myricetin (4), myricetin-3-O-alpha-L-rhamnoside (5), gallic acid (6), ursolic acid (7) and 1,3-dihydroxy-2-(2'-methoxylpropionyl)-5-methoxy-6-methylbenzene (8) were isolated by using silica gel column chromatography, polyamide column chromatography and recrytallization. Their structures were identified on the basis of physicochemical properties and spectroscopic analysis. Among them, compounds 2-7 were isolated from this plant for the first time and compound 8 was first isolated from plant.