Abstract:
:The free sterol mixture of the sponge Psammaplysilla purpurea was shown to contain aplysterol as the major constituent. In addition to other sterols such as 5,7-cholestadien-3beta-ol, cholesterol, 5alpha-cholestan-3beta-ol, 24epsilon-methylcholesta-5,22-dien-3beta-ol, 24epsilon--methylcholesterol, 24epsilon-ethylcholesta-5,22-dien-3beta-ol and 24,28-dehydroaplysterol, a new minor sterol was isolated and shown by spectral analysis as well as partial synthesis to be 3beta-hydroxy-26,27-bisnorcholest-5-en-24-one. The sterol mixture contains no other short side chain or 24-keto sterols except for small amounts of 3beta-hydroxypregn-5-en-20-one and 3beta-hydroxy-5alpha-pregnan-20-one.
journal_name
Steroidsjournal_title
Steroidsauthors
Ayanoglu E,Djerassi C,Erdman TR,Scheuer PJdoi
10.1016/s0039-128x(78)80046-4subject
Has Abstractpub_date
1978-06-01 00:00:00pages
815-22issue
6eissn
0039-128Xissn
1878-5867pii
S0039-128X(78)80046-4journal_volume
31pub_type
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