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Flavones from the Flowers of Tridax Procumbens and their Antioxidant Activity

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Chemistry of Natural Compounds Aims and scope

A new flavone, 6-methoxy-7,8-dihydroxyflavone (1), and a new natural flavone, 7-methoxy-6,8-

dihydroxyflavone (2), together with two known flavones wogonin (3) and oroxylin A (4), were isolated from Tridax procumbens. The structures of the compounds were established on the basis of 1D and 2D NMR data and HR-ESI-MS data interpretation, as well as by comparison with known analogs in the literature. All the compounds were evaluated for their antioxidant capabilities in vitro using 1,1′-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assays. Compound 1 (EC50 = 21.75 μg/mL) exhibited the most potent antioxidant activity.

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Acknowledgment

This work was supported by the Weifang Engineering Vocational College start up program.

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Authors and Affiliations

  1. Flower Research Institute, Weifang Engineering Vocational College, 262500, Weifang, P. R. China

    Shuai Ma, Jian-Ming Zhou & Huai-Sheng Wei

  2. College of Life and Environmental Science, Minzu University of China, 100081, Beijing, P. R. China

    Hai-Bo Wu

Authors
  1. Shuai Ma
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  2. Jian-Ming Zhou
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  3. Huai-Sheng Wei
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  4. Hai-Bo Wu
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Corresponding author

Correspondence to Jian-Ming Zhou.

Additional information

Published in Khimiya Prirodnykh Soedinenii, No. 2, March–April, 2020, pp. 211–212.

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Ma, S., Zhou, JM., Wei, HS. et al. Flavones from the Flowers of Tridax Procumbens and their Antioxidant Activity. Chem Nat Compd 56, 239–241 (2020). https://doi.org/10.1007/s10600-020-02996-2

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  • DOI: https://doi.org/10.1007/s10600-020-02996-2

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