Mr. Conte et al., STRUCTURE AND ABSOLUTE STEREOCHEMISTRY OF CYCLOLINTEINONE, A NOVEL MONOCARBOCYCLIC SESTERTERPENE FROM CACOSPONGIA CF LINTEIFORMIS, Tetrahedron, 50(47), 1994, pp. 13469-13476
A novel sesterterpene, cyclolinteinone (4), based on an unprecedented
rearranged monocarbocyclic skeleton, has been isolated from Cacospongi
a cf. linteiformis, and its structure, complete with absolute stereoch
emistry, determined by spectral studies and chemical correlations. A p
lausible pathway for the biogenesis of this compound starting from ger
anylfarnesol is proposed. Cyclolinteinone has been shown to possess hi
gh ichthyotoxicity and antifeedant properties.