A new xanthone from Garcinia nitida

A new xanthone from Garcinia nitida

A detailed chemical study on the stem bark of Garcinia nitida has led to the isolation of five xanthones. They are 1,6-dihydroxy-5-methoxy-6, 6-dimethylpyrano[2',3':2,3]-xanthone (1), inophyllin B (2), osajaxanthone (3), 3-isomangostin (4) and rubraxanthone (5). The structures of these com...

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Bibliographic Details
Main Authors: Ee, Gwendoline Cheng Lian, Foo, C. H., Jong, Vivien Yi Mian, Ismail, Nor Hadiani, Md. Sukari, Mohd Aspollah, Yap, Taufiq Yun Hin, Awang, Khalijah
Format: Article
Language:English
Published: Taylor & Francis 2012
Online Access:http://psasir.upm.edu.my/id/eprint/24936/1/A%20new%20xanthone%20from%20Garcinia%20nitida.pdf
http://psasir.upm.edu.my/id/eprint/24936/
http://www.tandfonline.com/doi/abs/10.1080/14786419.2011.559640
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Institution: Universiti Putra Malaysia
Language: English
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Summary:A detailed chemical study on the stem bark of Garcinia nitida has led to the isolation of five xanthones. They are 1,6-dihydroxy-5-methoxy-6, 6-dimethylpyrano[2',3':2,3]-xanthone (1), inophyllin B (2), osajaxanthone (3), 3-isomangostin (4) and rubraxanthone (5). The structures of these compounds were established using mainly 1-D and 2-D NMR spectroscopy (1H, 13C, DEPT, COSY, HMBC and HMQC) while molecular masses were determined via MS techniques; 1 is a new compound.

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