Structure elucidation of seven steroids from Sinularia conferta

Seven steroids were isolated from the methanol extract of the soft corals Sinularia conferta. These steroids were elucidated as 7-methoxyergosta-5,24(28)-diene-3-ol (1), ergosta-5-ene-3β,7α-diol (2), 3β,7α-dihydroxyergosta5,24(28)-diene (3), 3β-hydroxyergosta-5,24(28)-diene-7-one (4), ergosta-24(28)-ene-3β,5α,6β-triol-6-acetate (5), ergosta-24(28)-ene-3β,5α,6β-triol (6), and ergosta-3β,5α,6β-triol (7) by 1D and 2D-NMR experiments and comparison with reported data.