Abstract

Chemical investigation of a soft coral of the genus Lobophytum of the Andaman and Nicobar coasts resulted in the isolation of a new marine sterol acetate, (24S)-ergostane-3β,5α,6β,25-tetraol-3,6,25-triacetate (1) and of two known sterol glycosides 3β,4α-dihydroxypregn-20-ene-4-O-β-D-arabinopyranoside and 24-methylenecholest-5-ene-3β,7β,16β-triol-3-O-α-L-fucopyranoside-7β-acetate. The structures of the compounds were elucidated based on spectral studies and chemical conversions.

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