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Xanthones and Benzophenones from the Stems of Garcinia multiflora

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journal contribution
posted on 30.07.2003, 00:00 by Yi-Ming Chiang, Yueh-Hsiung Kuo, Shyuzo Oota, Yoshiyasu Fukuyama
Two new xanthone derivatives, garcinianones A (1) and B (2), two new benzophenone derivatives, 4,6,4‘-trihydroxy-2,3‘-dimethoxy-3-prenylbenzophenone (3) and 4,6,3‘,4‘-tetrahydroxy-2-methoxybenzophenone (4), and a new inseparable mixture of (1E,22Z)-1,22-diferuloyloxydocosane and (1E,24Z)-1,24-diferuloyloxyteracosane (5), together with the previously known 3,8-dihydroxy-2,4,6-trimethoxyxanthone, 6,3‘-dihydroxy-2,4-dimethoxybenzophenone, maclurin (6), 2,4,6,3‘-tetrahydroxybenzophenone (7), and naringenin, were isolated from the stems of Garcinia multiflora. The structures of 15 were elucidated by extensive analysis of their spectral data. Compounds were evaluated in the brine shrimp lethality test and in the DPPH antioxidant assay.