A new pyranoxanthone from Calophyllum soulattri

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 trit...

Full description

Bibliographic Details
Main Authors: Mah, Siau Hui, Ee, Gwendoline Cheng Lian, Rahmani, Mawardi, Yap, Taufiq Yun Hin, Md. Sukari, Mohd Aspollah, Teh, Soek Sin
Format: Article
Language:English
Published: MDPI 2011
Online Access:http://psasir.upm.edu.my/id/eprint/24885/1/28485.pdf
Description
Summary: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.