Caloxanthone C: a pyranoxanthone from the stem bark of Calophyllum soulattri.

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Caloxanthone C: a pyranoxanthone from the stem bark of Calophyllum soulattri.

The title compound [systematic name: 5,10-dihydroxy-2,2-dimethyl-12-(2-methylbut-3-en-2-yl)pyrano[3,2-b]xanthen-6(2H)-one], C23H22O5, isolated from the stem bark of Calophyllum soulattri, consists of four six-membered rings and a 2-methylbut-3-en-2-yl side chain. The tricyclic xanthone ring sy...

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Bibliographic Details
Main Authors:	Ee, Gwendoline Cheng Lian, Siau, Hui Mah, Huey, Chong Kwong, Soek, Sin Teh, Mohamed Tahir, Mohamed Ibrahim, Silong, Sidik
Format:	Article
Language:	English English
Published:	International Union of Crystallography 2011
Online Access:	http://psasir.upm.edu.my/id/eprint/24933/ http://psasir.upm.edu.my/id/eprint/24933/1/Caloxanthone%20C.pdf

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