A phloroglucinol derivative from the brown alga Sargassum spinuligerum

In addition to a large number of fuhalols and phlorethols previously identified in an ethanolic extract of Sargassum spinuligerum, a novel type of phloroglucinol derivative was isolated as its peracetyl derivative and identified by means of spectral analysis. In addition to a phloroglucinol unit, th...

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Bibliographic Details
Published in:Phytochemistry (Oxford) 1997-09, Vol.46 (2), p.341-345
Main Authors: Keusgen, Michael, Falk, Michael, Walter, John A., Glombitza, Karl-Werner
Format: Article
Language:English
Subjects:
ascorbic acid
Biological and medical sciences
chemical composition
Chemical constitution
chemical structure
derivatives
Fundamental and applied biological sciences. Psychology
Marine
nuclear magnetic resonance spectroscopy
Phaeophyta
phenolic compounds
Plant physiology and development
Sargassum
Sargassum spinuligerum
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Summary:In addition to a large number of fuhalols and phlorethols previously identified in an ethanolic extract of Sargassum spinuligerum, a novel type of phloroglucinol derivative was isolated as its peracetyl derivative and identified by means of spectral analysis. In addition to a phloroglucinol unit, the new compound contains an ascorbic acid moiety. The stereochemistry of this compound was elucidated by NOE experiments in combination with molecular modelling.
ISSN:0031-9422
1873-3700
DOI:10.1016/S0031-9422(97)00277-X