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Updated: Jan 25, 2026

Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro
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Diverse Polyphenols from Hypericum faberi.

Xin-Wen Zhang1,2, Yan-Song Ye3,4, Fan Xia3

  • 1State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China. xugang008@mail.kib.ac.cn.

Natural Products and Bioprospecting
|May 11, 2019
PubMed
Summary
This summary is machine-generated.

Six novel polyphenols, hyperfaberols A-F, were identified from Hypericum faberi. Two compounds demonstrated significant cytotoxicity against human esophageal and pancreatic cancer cell lines in vitro.

Keywords:
ChromoneCytotoxicitiyHypericum faberiIsoprenylated acylphloroglucinolIsoprenylated xanthone

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Area of Science:

  • Natural Products Chemistry
  • Phytochemistry
  • Medicinal Chemistry

Background:

  • The plant Hypericum faberi is a source of bioactive natural products.
  • Polyphenols, including xanthones, acylphloroglucinols, and chromones, are known for their diverse biological activities.

Purpose of the Study:

  • To isolate and characterize new polyphenol compounds from Hypericum faberi.
  • To evaluate the cytotoxic potential of the isolated compounds against human cancer cell lines.

Main Methods:

  • Isolation of compounds using chromatographic techniques.
  • Structure elucidation through comprehensive spectroscopic analysis (NMR, MS).
  • Comparison of spectral data with existing literature.

Main Results:

  • Six new polyphenols, designated hyperfaberols A-F (1-6), were isolated, featuring isoprenylated xanthone, isoprenylated acylphloroglucinol, and chromone structures.
  • Seven known related compounds were also identified.
  • Compound 1 (hyperfaberol A) exhibited cytotoxicity against the human esophageal cancer cell line (ECA-109).
  • Compound 11 showed cytotoxicity against the pancreatic tumor cell line (PANC-1).

Conclusions:

  • The study successfully identified novel polyphenol structures from Hypericum faberi.
  • The findings highlight the potential of these compounds, particularly 1 and 11, as leads for anticancer drug development.