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Molecules 2011, 16(7), 5647-5654; doi:10.3390/molecules16075647

Pyranoxanthones from Mesua ferrea

1, 1,* , 1, 1, 2 and 1
Received: 1 April 2011 / Accepted: 10 June 2011 / Published: 30 June 2011
(This article belongs to the Section Metabolites)
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Our phytochemical studies on the root bark extracts of Mesua ferrea have led to the isolation of two new pyranoxanthones, mesuaferrin A (1) and mesuaferrin B (2). Five other compounds – caloxanthone C (3), 1,8-dihydro-3-methoxy-6-methylanthraquinone (4), β-sitosterol (5), friedelin (6) and betulinic acid (7) – were also successfully isolated. Structural elucidations of these compounds were achieved using 1D and 2D NMR and MS techniques.
Keywords: mesuaferrin A; mesuaferrin B; pyranoxanthone; Mesua ferrea; Guttiferae mesuaferrin A; mesuaferrin B; pyranoxanthone; Mesua ferrea; Guttiferae
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Teh, S.S.; Ee, G.C.L.; Rahmani, M.; Taufiq-Yap, Y.H.; Go, R.; Mah, S.H. Pyranoxanthones from Mesua ferrea. Molecules 2011, 16, 5647-5654.

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