Three new norditerpenes (I, II, and III) were isolated from the Mediterranean sponge S. gracilis and their structures were detd. by spectroscopic and chem. evidences. The structures of II and III are strictly related to gracilin A, a previously isolated norditerpene from the same source, whereas spongionellin (I), possesses a new carbocyclic skeleton. The biogenesis of norditerpenes from S. gracilis is briefly discussed.
Metabolites from the marine sponge Spongionella gracilis. Three further nor-diterpenes, one of them based on a novel carbocyclic skeleton / Mayol, Luciano; Piccialli, Vincenzo; Sica, D.. - In: TETRAHEDRON. - ISSN 0040-4020. - STAMPA. - 42:19(1986), pp. 5369-5376. [10.1016/S0040-4020(01)82087-1]
Metabolites from the marine sponge Spongionella gracilis. Three further nor-diterpenes, one of them based on a novel carbocyclic skeleton
MAYOL, LUCIANO;PICCIALLI, VINCENZO;
1986
Abstract
Three new norditerpenes (I, II, and III) were isolated from the Mediterranean sponge S. gracilis and their structures were detd. by spectroscopic and chem. evidences. The structures of II and III are strictly related to gracilin A, a previously isolated norditerpene from the same source, whereas spongionellin (I), possesses a new carbocyclic skeleton. The biogenesis of norditerpenes from S. gracilis is briefly discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
