Further casbane-type diterpenes from the soft coral Sinularia depressa

AimTo study the minor diterpenes from the soft coral Sinularia depressaMethodThe chemical constituents were isolated and purified by various chromatographic techniques, and the chemical structures, including absolute configuration, were established on the basis of detailed analysis of spectroscopic data and by literature comparison with the data of related known compounds.ResultsA new casbane-type diterpene, 2-epi-10-hydroxydepressin (1), was isolated and identified.ConclusionCompound 1 is a new casbane-type diterpene.