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  • Title: [Studies on chemical constituents of Tinospora hainanesis].
    Author: Guo Y, Lin L, Shen J.
    Journal: Yao Xue Xue Bao; 1998 May; 33(5):350-4. PubMed ID: 12017002.
    Abstract:
    Tinospora hainanesis is a new species of Menispermaceae plant. It is used as folk remedy for joint pain and physical injury. Five compounds were isolated from the vine stalk of Tinospora hainanesis. By spectral analysis and chemical methods, the structures of the compounds were identified as makisterone A (I), 2,3-dimethoxy-9,10-dihydroxy-N-methyltetrahydroproto-berberine quaternary salt (II), palmatine (III), beta-amyrin (IV) and docosyl ferulate (V). II is a new quaternary alkaloid named as haitinosporine. I, IV and V were isolated for the first time from the plants of Tinospora genus.
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