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A new prenylated xanthone from the stem bark of Calophyllum lowii


Citation

Jamaluddin, Nur Amirah and Ee, Gwendoline Cheng Lian and Teh, S. S. and Mah, S. H. and Md. Sukari, Mohd. Aspollah (2013) A new prenylated xanthone from the stem bark of Calophyllum lowii. Journal of Science and Technology in the Tropics, 9 (2). pp. 143-147. ISSN 1823-5034

Abstract

Our detailed study on the chemical constituents of the stem bark of Calophyllum lowii has resulted in the isolation and characterization of one new xanthone calowiium (1) along with three other xanthone derivatives – caloxanthone L (2), β-mangostin (3), and macluraxanthone (4). Several triterpenoids and steroids, viz. friedelin (5), stigmasterol (6) and sitosterol (7) were also successfully isolated from this plant. The structures of these components were established by means of spectroscopic analysis –nuclear magnetic resonance (NMR 1D, 2D), UV, FTIR, and mass spectrometry.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Publisher: Akademi Sains Malaysia & Confederation of Scientific & Technological Association in Malaysia
Keywords: Clusiaceae; Calophyllum lowii; Xanthone; Calowiium.
Depositing User: Umikalthom Abdullah
Date Deposited: 10 Sep 2014 05:09
Last Modified: 05 Oct 2015 07:51
URI: http://psasir.upm.edu.my/id/eprint/30246
Statistic Details: View Download Statistic

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