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Molecules 2011, 16(5), 3999-4004; doi:10.3390/molecules16053999
Article

A New Pyranoxanthone from Calophyllum soulattri

, * , , ,  and
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
* Author to whom correspondence should be addressed.
Received: 21 March 2011 / Revised: 8 April 2011 / Accepted: 19 April 2011 / Published: 12 May 2011
(This article belongs to the Section Natural Products)
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Abstract

Our interest on xanthones from the Calophyllum genus has led us to a detailed study on the chemistry of the stem bark of Calophyllum soulattri. This gave one new pyranoxanthone, soulattrin (1), together with three other xanthones, caloxanthone B (2), caloxanthone C (3), macluraxanthone (4), the triterpene friedelin (5) and the steroid stigmasterol (6). The identities of these compounds were established using analyses of 1D and 2D NMR data.
Keywords: soulattrin; pyranoxanthone; Calophyllum soulattri; Guttiferae soulattrin; pyranoxanthone; Calophyllum soulattri; Guttiferae
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Mah, S.H.; Ee, G.C.L.; Rahmani, M.; Taufiq-Yap, Y.H.; Sukari, M.A.; Teh, S.S. A New Pyranoxanthone from Calophyllum soulattri. Molecules 2011, 16, 3999-4004.

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