Article révisé par les pairs
Résumé : Two isonitrile sesquiterpenes 2 and 3 have been isolated from the toxic dichloromethane extract of the marine sponge Acanthella acuta. Compound 2 was found to be identical with axisonitrile‐3. compound 3, 1‐isocyanoaromadendrane, is a novel sesquiterpene whose structure has been determined on the basis of its spectral properties and by chemical correlation with palustrol. Copyright © 1987 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim