Two New Pyranoxanthones from Mesua beccariana (Guttiferae)

Two New Pyranoxanthones from Mesua beccariana (Guttiferae)

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...

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Bibliographic Details
Main Authors: Siau Hui Mah, Wei Chung Sim, Gwendoline Cheng Lian Ee, Mawardi Rahmani, Soek Sin Teh, Siow Hwa Teo
Format: Article
Language:English
Published: MDPI AG 2010-09-01
Series:Molecules
Subjects:
mesuarianone
mesuasinone
pyranoxanthone
Mesua beccariana
Guttiferae
Online Access:http://www.mdpi.com/1420-3049/15/10/6733/
Description
Summary: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.
ISSN:1420-3049

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