Four new polyoxygenated sterols 2-5 were isolated from the marine black coral Antipathes subpinnata. The structures of these compounds, including stereochemical details, were deduced by ms, 1H- and 13C-nmr, 1H-1H COSY, and nOe difference spectroscopy. Compounds 2-5 are lethal to brine shrimp (Artemia salina).
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Fattorusso et al. (1992) studied this question.
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