A new pyrroloiminoquinone alkaloid (1) belonging to the makaluvamine family
has been isolated from the sponge Zyzzya cf. fuliginosa collected in the w
aters off the Vanuatu Islands. The compound, designated makulavamine P, was
characterized on the basis of its spectral data and displayed cytoxicity i
n the muM range on KB cells and antioxidant activity.