Marine Sterols. XIX. Polyhydroxysterols of the Soft Corals of the Andaman and Nicobar Coasts. (3). Isolation and Structures of Five New C_<28> Polyhydroxysterols from Two Sclerophytum sp. Soft Corals

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概要

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• Nine polyhydroxysterols were isolated from the lipid extract of two Sclerophytum sp. soft corals collected in the Andaman and Nicobar Islands. Of these, three compounds (7a, b, and 8) had previously been isolated from the southern Japan soft coral Sarcophyton glaucum. Compound 1 was identified as lobosterol having a novel 6-keto-A/B-cis ring juncture. The structures of the five new compounds were determined as 25-deacetyllobosterol (2), (24S)-24-methylcholest-7-ene-3β, 5α, 6β, 25-tetrol 25-monoacetate (3), (24S)-24-methylcholest-22E-ene-3β, 5α, 6β, 25-tetrol (4), (24S)-24-methylcholestane-3β, 5α, 25-triol-6-one 25-monoacetate (5a) and its C-25 deacetoxy analog (6), from the spectral data and by chemical conversion.

• 社団法人日本薬学会の論文
• 1991-02-25

著者

• 小林 優

  Faculty Of Pharmaceutical Sciencces Hokkaido University

• 小林 優

  北大薬

• 神田 扶由子

  Faculty of Pharmaceutical Sciences, Hokkaido University

• RAO Chunduri

  School of Chemistry, Andhra University

• KUMAR Saridi

  School of Chemistry, Andhra University

• RAO Desaraju

  Department of Pharmaceutical Sciences, Andhra University

• RAO Chaganti

  School of Chemistry, Andhra University

• Rao Chunduri

  School Of Chemistry Andhra University

• Rao Desaraju

  Department Of Pharmaceutical Sciences Andhra University

• Kumar Saridi

  School Of Chemistry Andhra University

• Rao Chaganti

  School Of Chemistry Andhra University

• 神田 扶由子

  Faculty Of Pharmaceutical Sciences Hokkaido University

• Rao Desaraju

  Andhra Univ. Visakhapatnam Ind

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