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Isolation and structural elucidation of flavones from flower of Paulownia tomentosa
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- Author:
- No author available
- Journal Title:
- CHINESE TRADITIONAL AND HERBAL DRUGS
- Issue:
- 3
- DOI:
- 10.3321/j.issn:0253-2670.2004.03.003
- Key Word:
- 玄参科;泡桐属;毛泡桐花;黄酮类
Abstract： 目的对泡桐属植物抗菌中草药毛泡桐花Paulownia tomentosa 中酚性类活性成分进行分离纯化和结构确定.方法利用普通硅胶柱色谱和制备薄层色谱等方法进行分离、纯化,并经超导核磁共振(NMR)等现代波谱技术确定其结构.结果从毛泡桐花的乙醇(95%)室温提取物中获得5个黄酮类的化合物,其结构被确定为:5,4′-二羟基-7,3′-二甲氧基双氢黄酮(Ⅰ),5-羟基-7,3′,4′-三甲氧基双氢黄酮(Ⅱ),diplacone(Ⅲ),mimulone(Ⅳ)和洋芹素(Ⅴ).结论黄酮类Ⅰ～Ⅴ为首次从该属植物中获得,大量黄酮类成分很可能为毛泡桐花的主要活性成分.
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