%0 Journal Article
%T Thirteen New Xanthone Derivatives from Calophyllum caledonicum (Clusiaceae)
%A C¨¦cile Morel
%A Anne-Emmanuelle Hay
%A Marc Litaudon
%A Thierry S¨¦venet
%A Denis S¨¦raphin
%A Jean Bruneton
%A Pascal Richomme
%J Molecules
%D 2002
%I MDPI AG
%R 10.3390/70100038
%X An EtOAc extract of the stem bark of Calophyllum caledonicum (Clusiaceae) yielded thirteen new hydroxylated and/or prenylated xanthone derivatives, namely 5-hydroxy-8-methoxyxanthone (1), 3,5-dihydroxy-1,2-dimethoxyxanthone (2), 1,8-dihydroxy-6,7-dimethoxyxanthone (3), 5,7-dihydroxy-2,6-dimethoxyxanthone (4), 6,8-dihydroxy-3,7-dimethoxy-xanthone (5), 2,5,6,7,8-pentahydroxyxanthone (6), 1,3,8-trihydroxy-5,7-dimethoxyxanthone (7) and according to a previously adopted nomenclature [3], caledonixanthone G-L. (8-13). The structural elucidation of 1-13 were mainly established on the basis of 1D and 2D NMR and HRMS spectroscopic analysis.
%K NMR
%K MS
%K xanthones
%K Calophyllum caledonicum
%K Guttiferae
%U http://www.mdpi.com/1420-3049/7/1/38