cacospongionolide b

Cacospongionolide B is isolated from the sponge Fasciospongia cavernosa. The marine sponge natural product cacospongionolide B (1) is one of a class of compounds bearing a g-hydroxybutenolide which are known to inhibit multiple forms of secratory phospholipase A2,1 enzymes believed to initiate a cascade of biological events leading to inflammation.