Four diterpenoid inhibitors of Cdc25B phosphatase from a marine anemone

Three new diterpenoids and one known diterpenoid have been isolated from a sea anemone of the order Actiniara, and the structures of the new compounds, actiniarins A–C (1–3) were established on the basis of extensive 1D and 2D NMR spectroscopic data interpretation. Compound 1 has a six-membered ring hemiacetal ring, and the equilibrium of this ring is discussed. All the isolates were evaluated for their inhibition of Cdc25B and for cytotoxicity against the A2780 ovarian cancer cell line.

New diterpenoids from a sea anemone of the order Actiara are active against Cdc25B phosphate.Figure optionsDownload as PowerPoint slide