Xanthones from Hypericum Sampsonii

CNU IR > Chna Nan Annual Bulletin > Vol.12 (1986) > Item 310902800/25053

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Title:	Xanthones from Hypericum Sampsonii
Authors:	Ming-Tyan Chen Chiu-Ming Chen
Contributors:	應用化學科
Date:	1986
Issue Date:	2012-02-24 16:04:37 (UTC+8)
Abstract:	Hypericum sampsonii Hance contains mangiferin, isomangiferin,2-hydroxy-3,4-dimethoxyxanthone, toxyloxanthone B, and a new compound,hyperxanthone, which was identified as 5,9-dihydroxy-3,3-dimethylpyrano- [3,2-a]xanthen-12(3H)-one on the basis of spectroscopic evidences.Characteristic fragment ions in the mass spectrum of pyranoxanthone are discussed.
Relation:	嘉南學報 12：p.A25-A30 轉載 Heterocycles 23(10)
Appears in Collections:	[Chna Nan Annual Bulletin] Vol.12 (1986) [Dept. of Food & Drug Industry and Inspective Technology] Periodical Articles

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