TETRAOXYGENATED XANTHONES FROM THE LATEX OF GARCINIA COWA

An Kim Nguyen, Ha Thi Dinh, Long Quoc Pham, Thuy Thu Tran

Abstract


Seven tetraoxygenated xanthones, namely fuscaxanthone A,7-O-methylgarcinone E, cowagarcinone A, cowaxanthone, rubraxanthone, cowanin and cowanol, were isolated from the dichloromethane extract of the latex of Garcinia cowa_Roxb. ex Choisy. Their structures were elucidated on the basis of 1D, 2D NMR spectroscopic data and comparison with reported data.


Keywords


Keywords: tetraoxygenated xanthone, dichloromethane extract, latex, Garcinia cowa.

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DOI: https://doi.org/10.15625/2525-2518/56/5/11826

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Published by Vietnam Academy of Science and Technology