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Abstract
Calophyllum caledonicum (Clusiaceae)yielded thirteen new hydroxylated and/orpreny latedxan thonede rivatives,namely5-
hydroxy-8-methox yxanthone (1), 3,5-dihydroxy-1,2-dimethox yxanthone (2), 1,8-dihydroxy-6,7-dimethoxy xanthone(3),5,7-dihydroxy-2,6-dimethox yxanthone(4),6,8-dihydroxy-3,7-dime thoxy -xanthone (5),2,5,6,7,8- pentahydroxyxanthone(6),1,3,8-trihydroxy-5,7-dimethoxyxanthone (7)andaccordi ngtoaprev iouslyadopte dno menclature[3],caledon ixanthone G-L. (8-13). The structural elucidation of1-13were mainly established on
the basis of 1D and 2D NMR and HRMS spectroscopic analysis.
References
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2. Peres V., Nagem T. J., de Oliveira F. F.Phytochem.2000, 55, 683 - 710
Morel C, Séraphin D, Oger J-M, Litaudon M, Sévenet T, Richomme P, Bruneton J. New xanthonesfromCalophyllum caledonicum.J. Nat. Prod.2000; 63, 1471 - 1474
Morel C, Séraphin D, Teyrouz A., Larcher G., Bouchara J.-P., Litaudon M, Sévenet T, RichommeP, Bruneton J. New and Antifungal xanthones fromCalophyllum caledonicum.Planta Med.2001,
in press
Morel, C. Étude phytochimique et biologique de deux Clusiaceae :Mesua racemosaetCalophyllum caledonicumoriginaires de Malaisie et de Nouvelle-Calédonie. Ph.D. Thesis,University of Angers, Angers, France.2001, n° 476, 1-311.
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