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  • Title: Three new xanthones from the roots of Polygala japonica Houtt.
    Author: Xue QC, Li CJ, Zuo L, Yang JZ, Zhang DM.
    Journal: J Asian Nat Prod Res; 2009; 11(5):465-9. PubMed ID: 19504390.
    Abstract:
    Three new xanthones, 1,3-dihydroxy-2,5,6,7-tetramethoxyxanthone (1), 3-hydroxy-1,2,5,6,7-pentamethoxyxanthone (2), and 3,8-dihydroxy-1,2,6-trimethoxyxanthone (3), together with two known compounds were isolated from the roots of Polygala japonica Houtt. Their structures were determined on the basis of spectroscopic data.
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