Epicubebol and Related Sesquiterpenoids from the Brown Alga Dictyopteris divaricata

Abstract
Epicubebol has been isolated from the methanol extracts of the brown alga Dictyopteris divaricata as the major constituent. Cadinane-type sesquiterpenes, cubebenes, δ-cadinene, cubenol, and epicubenol, as well as two sesquiterpene methyl ethers as minor constituents have also been obtained from the extracts.