Abstract
A new sesquiterpene isocyanide, 3-oxo-axisonitrile-3 (1), with a spiro [Citation5,Citation6] decane skeleton (spiroaxane) together with a known related sesquiterpene isonitrile (2), sesquiterpene isothiocyanates (3–8) and two diterpene isonitriles (9, 10) have been isolated from the Chinese marine sponge Acanthella sp. The structure of 1 has been determined on the basis of spectroscopic analysis.
Acknowledgements
This research was financially supported by “National Marine 863 Project (2001AA620403 and 2003AA624030)” and “National Natural Science Foundation for Outstanding Chinese Youths ” (no. 30125044).