[Study on lignans of Polygonum capitatum].
OBJECTIVE
To study the lignan of Polygonum capitatum.


METHODS
The compounds were isolated and purified by using of SiO2, Sephadex LH-20 column chromatography and pre-HPLC. The structures of the compounds were determined on the basis of their physical properties and the spectral data.


RESULTS
Four compounds were isolated and identified as schizandriside (1), (-)-isolariciresinol-2a-O-beta-D-xylopyranoside (2), (-) -5 '-methoxyisolariciresinol-2a-O-beta-D-xylopyranoside (3) and nudiposide (4).


CONCLUSIONS
Compounds 1 - 4 are isolated from the genus for the first time.
Institute of Materia Medica, Shandong Academy of Medical Sciences, Key Laboratory for Modern Medicine and Technology of Shandong Province, Jinan 250062, China. jdnl@163.com
Huan-Xin
HX
Zhao
Hong
H
Bai
Wei
W
Li
Yuan-Shu
YS
Wang
D002851:Chromatography, High Pressure Liquid / Q000379:methods; D017705:Lignans / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D028502:Polygonum / Q000737:chemistry*; D013764:Tetrahydronaphthalenes / Q000032:analysis* / Q000737:chemistry
D017705:Lignans; D013764:Tetrahydronaphthalenes