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      Enzymatic degradation of the triterpenoid saponin helianthoside 2.

      1 , , , ,
      Die Pharmazie

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          Abstract

          Helianthoside 2 (1), the main bisdesmosidic saponin of Helianthus annuus L. was converted to the products 2, 3 and 4 by several, optimized enzymatic hydrolysis methods. Monosaccharide units of the acylglycosidic at C-28 of the sapogenin bonded, linear chain oligosaccharide were cleaved, but the branched trisaccharide at C-3 of the aglycone are stable under the conditions used. Compounds 2 and 3 are new triterpenoid glycosides, which were characterized as 28-O-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside (2) and 28-O-alpha-L-arabinopyranoside (3) of 3-O-[alpha-L-rhamnopyranosyl-(1-->3)][beta-D-xylopyranosyl-(1-->4)] beta-D-glucopyranoside of 3 beta,16 alpha-dihydroxy-olean-12-en-28-oic acid.

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          Author and article information

          Journal
          Pharmazie
          Die Pharmazie
          0031-7144
          0031-7144
          Nov 1997
          : 52
          : 11
          Affiliations
          [1 ] Institut für Pharmazie, Mathematisch-Naturwissenschaftliche Fakultät I, Humboldt-Universität zu Berlin, Germany.
          Article
          9399339
          08e1cffc-a7bc-4513-aa63-fcae666eb8d7
          History

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