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Five phenolic glycosides from Alangium chinense
A Itoh1, T Tanahashi, S Ikejima (née Sato)
1Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan.
Journal of Natural Products
|January 29, 2000
Summary
Researchers isolated five new phenolic glycosides from Alangium chinense leaves. These novel compounds were identified using advanced spectroscopic methods, expanding knowledge of plant-derived natural products.
Area of Science:
- Natural Product Chemistry
- Phytochemistry
- Organic Chemistry
Background:
- Alangium chinense is a plant species known for its potential medicinal properties.
- The isolation of novel compounds from plant sources is crucial for drug discovery and understanding chemical diversity.
Purpose of the Study:
- To isolate and characterize novel phenolic glycosides from the dried leaves of Alangium chinense.
- To elucidate the chemical structures of the isolated compounds using spectroscopic techniques.
Main Methods:
- Extraction of compounds from dried Alangium chinense leaves.
- Purification of isolated compounds.
- Structure elucidation using spectroscopic methods (e.g., NMR, MS).
Main Results:
- Five novel phenolic glycosides were successfully isolated from Alangium chinense.
- The structures were identified as 6'-O-galloylsalicin (1), 4',6'-di-O-galloylsalicin (2), 4',6'-O-(S)-hexahydroxydiphenoylsalicin (3), 4', 6'-O-(R)-hexahydroxydiphenoylsalicin (4), and pyrocatechol 1-O-beta-D-xylopyranosyl(1-->6)-beta-D-glucopyranoside (5).
Conclusions:
- The study successfully identified five new phenolic glycosides from Alangium chinense.
- The findings contribute to the phytochemical knowledge of Alangium species and provide potential leads for further research.