Method: The active component was abtained from basic extraction part, techniques of neutral Al2 O3, Silica gel and HPLC chromatogram were used, and its chemical structure was identified by UV, IR, MS, 1H NMR and 13C NMR spectral data analysis.

• 方法:将碱性提取物用中性氧化铝、硅胶柱色谱和HPLC色谱等技术,分离得到活性成分,它的化学结构通过UV、IR、MS、1H NMR和13C NMR波谱分析确证。