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Phenolic derivatives from Aster indicus.

Chwan-Fwu Lin1, Chien-Chang Shen, Chien-Chih Chen

  • 1Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan, ROC.

Phytochemistry
|July 4, 2007
PubMed
Summary
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Researchers identified four new compounds from Aster indicus L. herbs using spectroscopic analysis. These findings expand the known chemical profile of this plant species.

Area of Science:

  • Phytochemistry
  • Natural Product Chemistry

Background:

  • Aster indicus L. is a plant species with a history of traditional use.
  • Understanding its chemical constituents is crucial for potential applications.

Purpose of the Study:

  • To isolate and characterize novel chemical compounds from Aster indicus L.
  • To contribute to the phytochemical knowledge of the Aster genus.

Main Methods:

  • Whole herbs of Aster indicus L. were subjected to phytochemical investigation.
  • Spectroscopic techniques, including Nuclear Magnetic Resonance (NMR) and Mass Spectrometry (MS), were employed for structural elucidation.

Main Results:

  • Four new compounds were isolated: 4-hydroxy-3-[1-(methoxycarbonyl)vinyloxy]benzoic acid (1), 5-(1-carboxylvinyloxy)-2-hydroxybenzoic acid (2), 4-allyl-2,6-dimethoxyphenyl 3-methylbutanoate (3), and 4-allyl-2-methoxyphenyl 2-methylbutanoate (4).

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  • Twenty-seven known compounds were also identified, enriching the known constituents of the plant.
  • The structures of the newly isolated compounds (1-4) were confirmed through detailed NMR and MS analyses.

    • Conclusions:

    • The study successfully identified novel chemical entities from Aster indicus L.
    • The findings enhance the understanding of Aster indicus L. phytochemistry and provide a basis for further research into its biological activities.