Chemical constituents of Knoxia valerianoides.
- Author:
Shan-qin YUAN
1
;
Yi-min ZHAO
Author Information
- Publication Type:Journal Article
- MeSH: Anthraquinones; chemistry; isolation & purification; Magnetic Resonance Spectroscopy; Molecular Structure; Plant Tubers; chemistry; Plants, Medicinal; chemistry; Rubiaceae; chemistry
- From: Acta Pharmaceutica Sinica 2006;41(8):735-737
- CountryChina
- Language:Chinese
-
Abstract:
AIMTo study the chemical constituents of Knoxia valerianoides Thorel et Pitard.
METHODSChromatographic methods were used for the isolation and purification. Structures were elucidated on the basis of chemical analysis and spectroscopic data.
RESULTSThree anthraguinones were isolated from K. valerianoides and identified as 1, 3, 5-trihydroxy-2-methyl-6-methoxyl-anthraguinone (kaoxiadin, I), 1, 3, 6-trihydroxy-5-ethoxylmethyl-anthraguinone (II) and 1, 3-dihydroxy-2-methylanthraguinone (rubiadin, III).
CONCLUSIONCompound II is a new anthraguinone constituent.
