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Molecules 2010, 15(10), 6733-6742; doi:10.3390/molecules15106733

Two New Pyranoxanthones from Mesua beccariana (Guttiferae)

, * , , ,  and
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
* Author to whom correspondence should be addressed.
Received: 13 August 2010 / Revised: 20 August 2010 / Accepted: 24 August 2010 / Published: 28 September 2010
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Our recent study on the stem bark extracts of Mesua beccariana has led to the isolation of two new pyranoxanthones, mesuarianone  (1) and mesuasinone (2), two anthraquinones, 4-methoxy-1,3,5-trihydroxyanthraquinone (3) and 2,5-dihydroxy-1,3,4-trimethoxyanthraquinone (4), one coumarin, mammea A/AB (5) and three common triterpenes, stigmasterol (6), friedelin (7) and betulinic acid (8). Structural elucidations of these compounds were achieved using 1D and 2D NMR and MS techniques. This is the first report on the phytochemistry of Mesua beccariana.
Keywords: mesuarianone; mesuasinone; pyranoxanthone; Mesua beccariana; Guttiferae mesuarianone; mesuasinone; pyranoxanthone; Mesua beccariana; Guttiferae
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Teh, S.S.; Ee, G.C.L.; Rahmani, M.; Sim, W.C.; Mah, S.H.; Teo, S.H. Two New Pyranoxanthones from Mesua beccariana (Guttiferae). Molecules 2010, 15, 6733-6742.

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