Two flavonoid glycosides and a miscellaneous flavan from the bark of Guibourtia coleosperma

Madelyn Bekker; Riaan Bekker; Vincent E Brandt

doi:10.1016/j.phytochem.2006.01.015

Two flavonoid glycosides and a miscellaneous flavan from the bark of Guibourtia coleosperma

Phytochemistry. 2006 Apr;67(8):818-23. doi: 10.1016/j.phytochem.2006.01.015. Epub 2006 Feb 21.

Authors

Madelyn Bekker¹, Riaan Bekker, Vincent E Brandt

Affiliation

¹ Department of Chemistry, University of the Free State, Bloemfontein, South Africa. [email protected]

PMID: 16494906
DOI: 10.1016/j.phytochem.2006.01.015

Abstract

Two flavonoid glycosides, 7-O-beta-D-xylopyranosyl-epicatechin and epicatechin-(4beta-->8)-7-O-beta-D-xylopyranosyl-epicatechin both as their acetate and methyl ether acetate derivatives and a miscellaneous flavan Epicatechin-(7,8-bc)-9beta-(3-methoxy-4-acethoxyphenyl)-dihydro-2(3H)-pyranone as its acetate derivative were isolated from the bark of Guibourtia coleosperma. Their structures were established by spectroscopic methods.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Catechin / analogs & derivatives*
Catechin / chemistry
Catechin / isolation & purification*
Cyclopentanes / chemistry
Cyclopentanes / isolation & purification*
Fabaceae / chemistry*
Flavonoids / chemistry
Flavonoids / isolation & purification*
Galactosides / chemistry
Galactosides / isolation & purification*
Glycosides / chemistry
Glycosides / isolation & purification*
Magnetic Resonance Spectroscopy
Molecular Structure
Plant Bark / chemistry*

Substances

(4beta-8)-7-O-beta-D-xylopyranosyl-epicatechin
Cyclopentanes
Flavonoids
Galactosides
Glycosides
7-O-(galactosyl)brefeldin A
Catechin