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Novel polyprenylated phloroglucinols from Hypericum sampsonii
Jih-Jung Chen1, Hong-Jhang Chen2, Yun-Lian Lin3
1Department of Pharmacy, Tajen University, Pingtung 907, Taiwan. jjchen@tajen.edu.tw.
Molecules (Basel, Switzerland)
|December 3, 2014
Summary
Two new compounds, hypersampsone R and S, were discovered in Hypericum sampsonii, a traditional Taiwanese medicine. These, along with hyperibone K, were isolated and structurally identified.
Area of Science:
- Phytochemistry
- Natural Products Chemistry
- Medicinal Plant Research
Background:
- Hypericum sampsonii Hance (Clusiaceae) is utilized in Taiwanese folk medicine for its therapeutic properties.
- Traditional uses include treating blood stasis, reducing swelling, and as an anti-hepatitis agent.
Purpose of the Study:
- To isolate and characterize novel chemical constituents from the aerial parts of Hypericum sampsonii.
- To identify compounds with potential medicinal value based on the plant's traditional applications.
Main Methods:
- Extraction and isolation of compounds from Hypericum sampsonii aerial parts.
- Structure elucidation using comprehensive spectroscopic techniques, including 1D and 2D Nuclear Magnetic Resonance (NMR) and Mass Spectrometry (MS).
Main Results:
- Two new polyprenylated phloroglucinol derivatives, hypersampsone R (1) and hypersampsone S (2), were identified.
- A known prenylated benzophenone, hyperibone K (3), was also isolated and characterized.
- The structures of all isolated compounds were definitively determined through detailed spectral analysis.
Conclusions:
- The chemical investigation of Hypericum sampsonii yielded two new compounds and one known compound.
- These findings contribute to the understanding of the phytochemical profile of Hypericum sampsonii.
- Further research may explore the pharmacological activities of the isolated compounds, particularly hypersampsone R, hypersampsone S, and hyperibone K.
