Junceosides A-C, new triterpene saponins from Arenaria juncea

Ghezala Gaidi, Tomofumi Miyamoto, Marie Aleth Lacaille-Dubois

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19 Citations (Scopus)

Abstract

Three novel triterpenoid saponins, junceosides A (1), B (2), and C (3), together with two known saponins have been isolated from the roots of Arenaria juncea. Their structures were elucidated using a combination of homo- and heteronuclear 2D NMR techniques (COSY, TOCSY, NOESY, HSQC, and HMBC) and by FAMBS. The new compounds were characterized as 3-O-α-L-arabinopyranosyl-(1→2)-[β-D-galactopyranosyl- (1→3)]-β-D-glucoronopyranosylgypsogenin-28-O-β- D-glucopyranosyl(1→3)-[β-D-xylopyranosyl- (1→4)]-α-L-rhamnopyranosyl-(1→2)-β-D-fucopyranoside (1), 3-O-α-L-arabinopyranosyl-(1→2)- [β-D-galactopyranosyl- (1→3]-β-D-glucoronopyranosylgypsogenin- 28-O-β-D-xylopyranosyl-(1→3)-β-D-xylopyranosyl- (1→4)-α-L-rhamnopyranosyl-(1→2)-β-D-fucopyranoside (2), and 3-O-β-D-xylopyranosyl-(1→3)-[β-D-galactopyranosyl- (1→2)]-β-D-glucoronopyranosylgypsogenin-28-O-β- D-xylopyranosyl-(1→4)]-α-L-rhamnopyranosyl- (1→2)-β-D-fucopyranoside.

Original languageEnglish
Pages (from-to)1533-1537
Number of pages5
JournalJournal of Natural Products
Volume64
Issue number12
DOIs
Publication statusPublished - Dec 1 2001

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All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine
  • Organic Chemistry

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