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Flavonoids from Spatholobus suberectus.

Jeong Seon Yoon1, Sang Hyun Sung, Jong Hee Park

  • 1College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University, San 56-1 Shillim-Dong, Kwanak-Gu, Seoul 151-742, Korea.

Archives of Pharmacal Research
|July 31, 2004
PubMed
Summary
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This study identified six compounds, including pterocarpans, flavanones, and isoflavones, from Spatholobus suberectus. These natural products, including maackiain and genistein, are reported from this plant for the first time.

Area of Science:

  • Phytochemistry
  • Natural Product Chemistry
  • Organic Chemistry

Background:

  • Spatholobus suberectus (Leguminosae) is a plant species with potential medicinal properties.
  • Previous phytochemical investigations of this species may be limited.
  • Identifying novel compounds from plant sources is crucial for drug discovery.

Purpose of the Study:

  • To isolate and identify chemical constituents from Spatholobus suberectus.
  • To report novel compounds from this plant species for the first time.

Main Methods:

  • Phytochemical isolation techniques.
  • Spectroscopic analysis including Circular Dichroism (CD), Electron Ionization Mass Spectrometry (EIMS), and 1D/2D Nuclear Magnetic Resonance (NMR).
  • Comparison of spectral data with existing literature.

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Main Results:

  • Six compounds were successfully isolated: two pterocarpans ((6aR,11aR)-maackiain, (6aR,11aR)-medicarpin), one flavanone ((2S)-7-hydroxy-6-methoxy-flavanone), one isoflavan (sativan), and two isoflavones (pseudobaptigenin, genistein).
  • The chemical structures were elucidated using comprehensive spectroscopic methods.
  • All identified compounds represent new findings for the Spatholobus suberectus plant.

Conclusions:

  • The phytochemical analysis of Spatholobus suberectus yielded six known compounds.
  • This study expands the known chemical profile of Spatholobus suberectus.
  • The reported compounds may warrant further investigation for their biological activities.