Further bioactive sesterterpenes from the tyrrenhian sponge Fasciospongia cavernosa

Together with the previously described cacospongionolide B (la), two new sesterterpenoids, the cacospongionolide D (2a) related to cacospongionolide I% and (6Z)-luffarin-V (3) were isolated from the Tyrrhenian sponge Fasciospongia cavernosa. The structural elucidation and biological activity of these new compounds are reported