Dysidiolide, a novel sesterterpenoid isolated from the Caribbean sponge Dys
idia etheria de Laubenfels, has been shown an inhibitor of protein phosphat
ase cdc25A. The authors established a stereocontrolled total synthesis of (
+/-)-dysidiolide using an intramolecular Diels-Alder reaction as the key st
ep. (C) 2000 Elsevier Science Ltd. All rights reserved.