[Flavonoids from rhizome of Alpinia tonkinensis].

  title={[Flavonoids from rhizome of Alpinia tonkinensis].},
  author={Jian Feng Zhang and Qing-hai Guo and Ling-yi Kong},
  journal={Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica},
  volume={28 1},
OBJECTIVE To find out the bioactive principles of Alpinia tonkinensis, by investigating its chemical constituents. METHOD It was extracted with MeOH, distributed by different solvents, and isolated via column chromatography on silica gel. RESULT Six compounds were elucidated through spectral analysis, which were as follows: 4',7-dimethylkaempferol(I), 5-hydroxy-3',4',7-trimethoxyflavanone(II), kumatakenin(III), 4',5,7-trimethoxyflavonol(IV), ombuine(V), and kaempferol(VI). CONCLUSION Six… CONTINUE READING

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