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A new marine C28 sterol was isolated from the soft coral, Sarcophyton glaucum, and its structure was proposed as (22E)-23-methylcholesta-5, 22-dien-3β-ol on spectral evidences, especially by the comparison of its 13C-NMR chemical shifts with those of 23, 24-dimethylcholesta-5, 22-dien-3β-ol, which is present in the same soft coral.
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Kobayashi et al. (1979) studied this question.
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