Russian Journal of Bioorganic Chemistry

, Volume 28, Issue 3, pp 183–188 | Cite as

New Triterpene Glycosides from an Ulosa sp. Sponge

  • A. S. Antonov
  • A. I. Kalinovskii
  • P. S. Dmitrenok
  • V. A. Stonik
Article

Abstract

New triterpene glycosides, ulososides C, (20S,22S,23R,24S)-3β,22,23-trihydroxy-3-O-(β-D-glucopyranosyl)-32-nor-24-methyllanost-8(9)-ene-30-oic acid, D, (20S,22S,23R,24S)-3β,22,23-trihydroxy-3-O-(β-D-N-acetylglucosaminopyranosyl)-32-nor-24-methyllanost-8(9)-ene-30-oic acid, and E, (20S,22S,23R,24S)-3β,22,23-trihydroxy-3-O-(β-D-glucuronopyranosyl-(1 → 2)-α-D-arabinopyranosyl-32-nor-24-methyllanost-8(9)-ene-30-oic acid, were isolated from an Ulosa sp. sponge. Their structures were determined by spectral methods and chemical transformations. Specific features of their structures are discussed.

sponge Ulosa sp. triterpene glycosides isolation spectral characteristics structure 

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Copyright information

© MAIK “Nauka/Interperiodica” 2002

Authors and Affiliations

  • A. S. Antonov
    • 1
  • A. I. Kalinovskii
    • 1
  • P. S. Dmitrenok
    • 1
  • V. A. Stonik
    • 1
  1. 1.Far East Division, Russian Academy of SciencesPacific Institute of Bioorganic ChemistryVladivostokRussia

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