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[Two new phenylethanoid glycosides from Corallodiscus flabellata]
Xiao-ke Zheng1, Jun Li, Wei-sheng Feng
1Henan College of Traditional Chinese Medicine, Zhengzhou 450008, China.
Yao Xue Xue Bao = Acta Pharmaceutica Sinica
|August 2, 2003
Summary
Two new phenylethanoid glycosides and three phenolic acids were identified from Corallodiscus flabellata. This study details the isolation and structural elucidation of these novel compounds and previously unreported constituents.
Area of Science:
- Phytochemistry
- Natural Product Chemistry
- Ethnobotany
Background:
- Corallodiscus flabellata is a plant with potential medicinal properties.
- Understanding its chemical composition is crucial for pharmacological research.
- Previous studies on this species are limited.
Purpose of the Study:
- To isolate and characterize the chemical constituents of Corallodiscus flabellata.
- To identify novel compounds and those reported for the first time in this plant.
Main Methods:
- Water extraction of fresh plant material.
- Solvent-solvent partitioning (ether, ethyl acetate, n-butanol).
- Chromatographic techniques including macroporous adsorption resin, Sephadex LH-20, Toyopearl HW-40, gel MCI, Gel CHP-20, and silica gel column chromatography.
- Structure elucidation using spectral data, hydrolysis, and chemical correlation.
Main Results:
- Two new phenylethanoid glycosides (compounds I and II) were isolated.
- Three known phenolic acids: vanillic acid (III), syringic acid (IV), and ferulic acid (V) were identified.
- Compounds III, IV, and V were reported from this plant for the first time.
Conclusions:
- The chemical investigation led to the discovery of two novel phenylethanoid glycosides.
- This study expands the knowledge of the phytochemical profile of Corallodiscus flabellata.
- The identified compounds may contribute to the plant's traditional uses.