Poecillastrin D (2) was isolated together with poecillastrin C (1) from the deep sea sponge, Japsis serpentina. Its structure was elucidated to be that of a macrolide lactam by spectroscopic methods. These compounds showed potent cytotoxicity against various tumor cell lines.
Poecillastrin D: A New Cytotoxin of the Chondropsin Class from Marine Sponge Jaspis serpentina. Publishing Authors By Initials