Isolation of five new 5 alpha-hydroxy-6-keto-delta 7 sterols from the marine sponge Oscarella lobularis.
Five novel sterols isolated from the marine sponge Oscarella lobularis have been identified on the basis of spectral arguments: cholest-7-ene-3beta,5alpha-diol-6-one (1), cholesta-7,22E-diene-3beta, 5alpha-diol-6-one (2), 24-methylcholesta-7,22E-diene-3beta,5alpha-diol-6-one (3), 24-methylcholesta-7,24(28)-diene-3beta,5alpha-diol-6-one (4), and 24-ethylcholest-7-ene-3beta,5alpha-diol-6-one (5).
Dipartimento di Chimica delle Sostanze Naturali, Napoli, Italy.
A
A
Aiello
E
E
Fattorusso
S
S
Magno
M
M
Menna
D000818:Animals; D006914:Hydroxysteroids / Q000737:chemistry / Q000302:isolation & purification*; D007664:Ketosteroids / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D011161:Porifera / Q000737:chemistry*
D006914:Hydroxysteroids; D007664:Ketosteroids