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Xanthone constituents in Swertia decora
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- Author:
- No author available
- Journal Title:
- CHINESE TRADITIONAL AND HERBAL DRUGS
- Issue:
- 2
- DOI:
- 10.3321/j.issn:0253-2670.2005.02.003
- Key Word:
- 观赏獐牙菜;(口山)酮;观赏獐牙菜(口山)酮-Ⅰ
Abstract： 目的研究民族药观赏獐牙菜Swertia decora的化学成分,寻找活性物质.方法用系统溶剂提取,常规硅胶柱色谱和薄层色谱进行分离纯化,根据化合物的物理、化学性质,UV、MS、NMR、HMPC、HMQC等波谱手段及HPLC对照等鉴定其结构.结果从观赏獐牙菜的低极性部分分离得到3个化合物,分别鉴定为1-羟基-4,5,6,7-四甲氧基(口山)酮即观赏獐牙菜(口山)酮-Ⅰ(1-hydroxy-4,5,6,7-tetramethoxy-9H-xanthen-9-one,Ⅰ)、5,7,3',4′-四羟基黄酮即木犀草素(luteolin,Ⅱ)和3,5,7,3',4′-五羟基黄酮即槲皮素(quercetin,Ⅲ).结论化合物Ⅰ为一新化合物,命名为观赏獐牙菜(口山)酮-Ⅰ(swertiadecoraxanthone-Ⅰ),另2个化合物均为首次从该植物中分离得到.化合物Ⅰ的五氧取代类型也为首次在獐牙菜属植物中发现.
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