Abstract
One novel uncommon steroid, ximaosteroid A ( 1), possessing an unusual tetrahydrofuran moiety and three new pregnane steroids, ximaosteroids B–D ( 2– 4), were isolated from the Hainan soft coral Scleronephthya sp. Their structures were elucidated on the basis of detailed spectroscopic (IR, MS, and 2D NMR) analysis and by comparison with those reported in the literature.
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