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Journal of Chinese Pharmaceutical Sciences ›› 2014, Vol. 23 ›› Issue (10): 723-730.DOI: 10.5246/jcps.2014.10.092

• Original articles • Previous Articles     Next Articles

Chemical constituents from the roots of Polygala wattersii Hance

Yuhong Zhou1, Qiang Guo2, Yong Jiang1, Pengfei Tu1,2*   

  1. 1. State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China
    2. Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
  • Received:2014-01-13 Revised:2014-02-10 Online:2014-10-31 Published:2014-02-15
  • Contact: Tel.: 86-10-82802750, Fax: 86-10-82802859
  • Supported by:
    The National Key Technology R&D Program “New Drug Innovation” of China (Grant No. 2012ZX09301002-002-002, 2012ZX09304-005), special funds for scientific research on traditional Chinese medicine (Grant No. 201307002), and National Science Fund for Excellent Young Scholars (Grant No. 81222051).
    a These authors contribute to the paper equally.

Abstract:

To investigate the chemical constituents of the roots of Polygala wattersiiHance,the separation and purification were performed by solvent extraction and repeated column chromatography (CC) on silica gel, Sephadex LH-20 and macroporous resin D101, preparative TLC and semi-preparative HPLC. The structures were identified by spectroscopic analysis and comparison of their1H and 13C NMR data with those reported in literatures. Twenty-three known compounds, including eleven xanthones (1-11), nine sugar esters (1220), two triterpenoid saponins (21 and 22) and one phenylpropanoid (23) were isolated and their structures were identified as 1,3-dihydroxyxanthone (1), 1-hydroxy-3-methoxyxanthone (2), 1,3-dihydroxy-2-methoxyxanthone (3), 1,3,7-trihydroxy-2-methoxyxanthone (4), 1,3,6-trihydroxy-2,7-dimethoxyxanthone (5), 1,6,7-trihydroxy-2,3-dimethoxyxanthone (6), 1,7-dihydroxy-2,3-methylenedioxyxanthone (7), 1,7-dimethoxyxanthone (8), 1,2,3-trimethoxyxanthone (9), 1-methoxy-2,3-methylenedioxyxanthone (10), 6-hydroxy-1-methoxy-2,3-methylenedioxyxanthone (11), 3'-O-feruloyl-6-O-acetyl sucrose (12), arillatose B (13), sibricose A5 (14), sibricose A6 (15), 3',6-di-O-sinapoyl sucrose (16), tenufoliside A (17), 3'-O-3,4,5-trimethoxycinnamoyl-6-O-p-methoxybenzoyl sucrose (18), glomeratose A (19), 1-O-p-coumaroyl-D-glucopyranose (20), bayogenin-3-O-glucoside (21), tenufolin (22), and sinapic acid (23). Among them, compounds 2 and 12 were obtained from genus Polygala for the first time, and except compound 16, all others were isolated from this species for the first time.

Key words: Polygalaceae, Polygala wattersii Hance, Chemical constituents, Xanthones, Sugar esters

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