Two new xanthones from the pericarp of Garcinia mangostana |
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| Authors: | Xiaojun Zhou Luan He Xinxing Wu Yanxia Zhong Juan Zhang |
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| Institution: | 1. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, P.R. China;2. Department of Pharmacy, Medical College, Nanchang University, Nanchang, P.R. China;3. University of Chinese Academy of Sciences, Beijing, 100049, P.R. China;4. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, P.R. China |
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| Abstract: | Two new xanthones, designated garcimangosxanthone F (1) and garcimangosxanthone G (2), were isolated from the EtOAc-soluble fraction of ethanolic extract from the pericarp of Garcinia mangostana. Their structures were established as 1,6,7-trihydroxy-5-(3-methylbut-2-enyl)-8-(3-hydroxy-3-methylbutyl)-6′,6′-dimethylpyrano2′,3′:3,2]xanthone and 1,6,7-trihydroxy-5-(3-methylbut-2-enyl)-8-(3-hydroxy-3-methylbutyl)-6′,6′-dimethyl-4′,5′-dihydropyrano2′,3′:3,2]xanthone, respectively, on the basis of their 1D, 2D NMR and MS data interpretation. |
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| Keywords: | Garcinia mangostana xanthone garcimangosxanthone F garcimangosxanthone G |
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