A New Cyclized 9,11-Secosterol Enol−Ether from the Australian Sponge Euryspongia arenaria

The polar fraction of the crude extract from the sponge Euryspongia arenaria was separated by chromatography. Structure elucidation by spectrometric methods allowed the identification of a new steroid, stellattasterenol (2), containing an unprecedented seven-membered cyclic enol−ether in ring C. A r...

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Bibliographic Details
Published in:Journal of natural products (Washington, D.C.) D.C.), 1999-08, Vol.62 (8), p.1154-1157
Main Authors: van Altena, Ian A, Butler, Alan J, Dunne, Simon J
Format: Article
Language:English
Subjects:
Analytical, structural and metabolic biochemistry
Biological and medical sciences
chemical composition
chemical structure
ethers
Euryspongia arenaria
Fundamental and applied biological sciences. Psychology
lyso-platelet activating factor
Marine
natural products
Other biological molecules
parazoa
pentahydroxy-9,11-secosteroid
platelet-activating factor
Porifera
spectral analysis
stellattasterenol
stellettasterol
sterols
Terpenes, steroids. Hormones
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Summary:The polar fraction of the crude extract from the sponge Euryspongia arenaria was separated by chromatography. Structure elucidation by spectrometric methods allowed the identification of a new steroid, stellattasterenol (2), containing an unprecedented seven-membered cyclic enol−ether in ring C. A related known compound, stellettasterol (3), a pentahydroxy-9,11-secosteroid, was also identified.
ISSN:0163-3864
1520-6025
DOI:10.1021/np9805591