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Xanthones and Xanthone Derivatives from Garcinia nitida

Ee, Gwendoline Cheng Lian and Lim, Che Kiong and Yap, Taufiq Yun Hin and Sukari, Mohd Aspollah and Rahmani, Mawardi (2007) Xanthones and Xanthone Derivatives from Garcinia nitida. Pertanika Journal of Science & Technology, 15 (1). pp. 77-83. ISSN 0128-7680

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A detiled chemical study on the stem bark extracts of Garcinia nitida has led to the isolation of five xanthones and two triterpenoids. They are 1,3,7-trihydroxy-2,4-bis(3-menthylbut-2-enyl)xanthone (1) osajaxanthore, (2) inophylin B, (3) 3-isomangostin, (4) rubraxanthone, (5) stigmasterol and stigmasterol acetate. The structures of these compounds were established using mainly 1D and 2D NMR spectrocopy. Acetylation of rubraxanthone resulted in two new compounds, rubraxanthone monoacetate (6) and rubraxanthone diacetate (7) with rubraxanthone triacetate (8).

Item Type:Article
Keyword:Garcinia nitida, guttiferae, xanthones, triterpenoids
Faculty or Institute:Faculty of Science
Publisher:Universiti Putra Malaysia Press
ID Code:11563
Deposited By: Najwani Amir Sariffudin
Deposited On:07 Apr 2011 02:47
Last Modified:07 Apr 2011 02:50

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