Novel 3-β-methoxysteroids from the senegalese sponge Microscleroderma spirophora

The Senegalese sponge Microscleroderma spirophora has been found to produce exclusively very unusual 3 beta-methoxysteroids in place of the common 3 beta-hydroxysteroids. Six different methoxysteroids (three of which are novel compounds) have been isolated and identified by spectroscopic means (MS,...

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Veröffentlicht in:	Steroids 1994-03, Vol.59 (3), p.181-184
Hauptverfasser:	COSTANTINO, V, FATTORUSSO, E, MANGONI, A, AKNIN, M, GAYDOU, E. M
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Biological and medical sciences Fundamental and applied biological sciences. Psychology Invertebrates Magnetic Resonance Spectroscopy Mass Spectrometry Molecular Conformation Molecular Structure Porifera Porifera - chemistry Spectrophotometry, Infrared Steroids - chemistry Steroids - isolation & purification
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Beschreibung
Zusammenfassung:	The Senegalese sponge Microscleroderma spirophora has been found to produce exclusively very unusual 3 beta-methoxysteroids in place of the common 3 beta-hydroxysteroids. Six different methoxysteroids (three of which are novel compounds) have been isolated and identified by spectroscopic means (MS, IR, 1H and 13C NMR), and their taxonomic significance discussed. A new method for the determination of the configuration at C-24 in saturated 24-ethyl side chains is also proposed.
ISSN:	0039-128X 1878-5867
DOI:	10.1016/0039-128X(94)90025-6