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Two New Pyranoxanthones from Mesua beccariana (Guttiferae)
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
* Author to whom correspondence should be addressed.
Received: 13 August 2010; in revised form: 20 August 2010 / Accepted: 24 August 2010 / Published: 28 September 2010
Abstract: 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
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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.
Teh SS, Ee GCL, Rahmani M, Sim WC, Mah SH, Teo SH. Two New Pyranoxanthones from Mesua beccariana (Guttiferae). Molecules. 2010; 15(10):6733-6742.
Teh, Soek Sin; Ee, Gwendoline Cheng Lian; Rahmani, Mawardi; Sim, Wei Chung; Mah, Siau Hui; Teo, Siow Hwa. 2010. "Two New Pyranoxanthones from Mesua beccariana (Guttiferae)." Molecules 15, no. 10: 6733-6742.