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Three new 7-keto sterols from the Mediterranean sponge Clathrina clathrus
A Aiello1, P Ciminiello, E Fattorusso
1Dipartimento di Chimica delle Sostanze Naturali, Napoli, Italy.
Steroids
|November 1, 1988
Abstract:
The CHCl3 extract of the Mediterranean sponge Clathrina clathrus was shown to contain three new sterols: (22 E)-3 beta-hydroxycholesta-5,8,22-trien-7-one (1), (22 E, 24 xi)-3 beta-hydroxy-24-methylcholesta-5,8,22-trien-7-one (2), and (22 E, 24 xi)-3 beta-hydroxy-24-ethylcholesta-5,8,22-trien-7-one (3), whose structures were elucidated on the basis of physico-chemical evidence.