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Steroid compounds of marine sponges. I. Sterols ofEsperiopsis digitata

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Abstract

From extracts of the Far Eastern spongeEsperiopsis digitata, by column chromatography on silica gel we have isolated three fractions of steroid compounds. The fractions isolated have been analyzed with the aid of TLC, GLC-MS, PMR, and13C NMR. The least polar fraction (1) had a Rf value identical with that of cholesterol and represents the total free steroids. After argentation column chromatography, 13 components were identified in it, the main one being cholesterol. The more polar fraction (2) consisted of a combination of 3β-hydroxychol-5-en-24-al and 3β-hydroxy-24-norchol-5-en-23-al. The most polar of the fractions isolated — fraction (3) — consisted of a single component which was identified as cholesta-5,25-diene-3β,24ξ-diol.

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Authors
  1. L. K. Shubina
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  2. T. N. Makar'eva
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  3. V. M. Boguslavskii
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  4. V. A. Stonik
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Additional information

Pacific Ocean Institute of Bioorganic Chemistry, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 740–746, November–December, 1983.

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Shubina, L.K., Makar'eva, T.N., Boguslavskii, V.M. et al. Steroid compounds of marine sponges. I. Sterols ofEsperiopsis digitata . Chem Nat Compd 19, 704–709 (1983). https://doi.org/10.1007/BF00575174

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  • DOI: https://doi.org/10.1007/BF00575174

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