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Isolation and structure identification of chemical constituents from Polygala hongkongensis Ii

Wu, J.-F.; Chen, S.-B.; Wu, L.-J.; Chen, S.-L.; Tu, P.-F.

Zhongguo Zhong Yao Za Zhi 32(9): 819-821

2007

ISSN/ISBN: 1001-5302
PMID: 17639983
Document Number: 606477
To isolate and elucidate the constituents of herbs of Polygala hongkongensis. The constituents were isolated and purify by chromatographic on silica gel, Sephadax LH-20 and semi-preparative HPLC. The structures were determined by NMR and MS spectral analysis. Six compounds were identified as euxanthone (1), 1, 3, 6-trihydroxyxanthone (2), 1, 4, 7-trihydroxy-3-methoxy-xanthone (3), p-hydroxybenzoic acid (4), 3, 4-dihydroxybenzoic acid (5), and methy 1 2, 5-dihydroxybenzoate (6). The known compounds 1-6 were isolated from this plant for the first time.

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