Polygonumosides A–D, Stilbene Derivatives from Processed Roots of Polygonum multiflorum

Four new stilbene derivatives, polygonumosides A–D (1–4), were isolated from the processed roots of Polygonum multiflorum. Their structures were elucidated by spectroscopic analysis, including 1D and 2D NMR and ECD. Polygonumosides A (1) and B (2), possessing an unprecedented tetracyclic skeleton, w...

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Bibliographic Details
Published in:Journal of natural products (Washington, D.C.) D.C.), 2014-02, Vol.77 (2), p.397-401
Main Authors: Yan, Shi-Lun, Su, Yan-Fang, Chen, Lei, Que, Meng, Gao, Xiu-Mei, Chang, Jun-Biao
Format: Article
Language:English
Subjects:
Drugs, Chinese Herbal - chemistry
Drugs, Chinese Herbal - isolation & purification
Glucosides - chemistry
Glucosides - isolation & purification
Molecular Structure
Nuclear Magnetic Resonance, Biomolecular
Plant Roots - chemistry
Polygonum - chemistry
Stilbenes - chemistry
Stilbenes - isolation & purification
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Summary:Four new stilbene derivatives, polygonumosides A–D (1–4), were isolated from the processed roots of Polygonum multiflorum. Their structures were elucidated by spectroscopic analysis, including 1D and 2D NMR and ECD. Polygonumosides A (1) and B (2), possessing an unprecedented tetracyclic skeleton, were assigned as 2S- and 2R-2-(4-hydroxyphenyl)-9,10,11-trihydroxy-2H-benzo[c]furo[2,3-f]chromen-7(3H)-one-4-O-β-d-glucopyranosides, respectively, while polygonumosides C (3) and D (4) were assigned as a pair of diastereomeric stilbene glucoside dimers.
ISSN:0163-3864
1520-6025
DOI:10.1021/np400720y