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  • Title: [Studies on chemical constituents from Polygonum macrophyllum].
    Author: Wang S, Wang D, Feng S.
    Journal: Zhong Yao Cai; 2004 Jun; 27(6):411-3. PubMed ID: 15524292.
    Abstract:
    OBJECTIVE: To study the chemical structures from Polygonum macrophyllum D. Don. METHODS: To isolate the constituents by reverse phase chromatography and characterize their structures by the analysis of chemical property and spectral data. RESULT: Six compounds were isolated from the 70% acetone extract from the complete herb of P. macrophyllum. Their structures were elucidated as (-)-epicatechin-5-O-beta-D-glucopyranoside (I), (+)-catechin-7-O-beta-D-glucopyranoside (II), 1-(3-O-beta-D-glucopyranosyl 4,5-dihydroxy-phenyl)-ethanone (III) (-)-epicatechin (IV), chlorogenic acid (V) and gallic acid (VI). CONCLUSION: Compounds I-VI were isolated from the plant for the first time.
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