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Occurrence and seasonal variation of 19-norcholest-4-en-3-one and 3 beta-monohydroxy sterols in the Californian gorgonian, Muricea californica.

Authors :
Popov S
Carlson RM
Djerassi C
Source :
Steroids [Steroids] 1983 Apr; Vol. 41 (4), pp. 537-48.
Publication Year :
1983

Abstract

The first natural occurrence of 19-norcholestenone is reported, together with 17 sterols and one other delta 4-3-ketone in the extracts of the Californian gorgonian, Muricea californica (Aurivillius). Six additional demethyl sterols and five additional 4-monomethyl sterols which remain unidentified were also detected. Lipid extracts of M. californica from a winter and summer collection were split by various chromatographic methods into free sterol, steryl ester, and steryl conjugate fractions. Sterol compositions (determined by CG and CG-MS) of each fraction, subsequent to hydrolysis, are tabulated and discussed with respect to plausible origins of observed variations. The possible relationship of the Muricea 19-nor-steroidal ketone to other naturally occurring 19-nor-steroids is discussed.

Details

Language :
English
ISSN :
0039-128X
Volume :
41
Issue :
4
Database :
MEDLINE
Journal :
Steroids
Publication Type :
Academic Journal
Accession number :
6658890
Full Text :
https://doi.org/10.1016/0039-128x(83)90093-4