- 144. Rogiolol Acetate: a Novel β-Chamigrene-Type Sesquiterpene Isolated from a Marine Sponge
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The marine sponge Spongia zimocca SCHMIDT, 1862, collected in front of the torrent Il Rogiolo, south of Livorno, contains the sesquiterpene rogiolol acetate (=(+)-(2R,3S,6R,8R,9R)-2,8-dibromo-9-chloro-1,1,9-trimethyl-5-methylidenespiroundec-3-yl acetate; (+)-3a), which represents the first chamigrane isolated from a sponge.Although compounds of this class are common in red seaweeds of the genus Laurencia, and our sponge actually contains 9-bromochamigrene and a variety of other metabolites of nearby growing Laurencia sp., (+)-3a is unique to our sponge.
- Guella, Graziano,Mancini, Ines,Chiasera, Guiseppe,Pietra, Francesco
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p. 1612 - 1620
(2007/10/02)
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