Prenylated anthraquinones and other constituents from the seeds of Vismia laurentii |
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Authors: | Wabo Hippolyte Kamdem Kouam Simeon Fogue Krohn Karsten Hussain Hidayat Tala Michel Feussi Tane Pierre Ree Teunis van Hu Qunxiu Schulz Barbara |
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Affiliation: | Department of Chemistry, University of Dschang, Dschang, Cameroon. |
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Abstract: | Two new prenylated anthraquinones, laurenquinone A (1) and B (2) were isolated from the seeds of Vismia laurentii together with four known compounds; xanthone V(1) (3), physcion (4), 3-geranyloxyemodin anthrone (5) and friedelin (6). The structures of the new metabolites were determined with the help of spectroscopic data including extensive 2D-NMR spectroscopy. The known compounds were identified by comparison of their physical and spectroscopic data with those reported in the literature. Compounds 1, 4 and 5 exhibited moderate algicidal activity against Chlorella fusca and 3 showed moderate activity against the gram-positive bacterium Bacillus megaterium. |
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