Tetrapterosides A and B, two new oleanane-type saponins from Tetrapleura tetraptera

Olivier Placide Noté, Anne Claire Mitaine-Offer, Tomofumi Miyamoto, Thomas Paululat, Dieudonné Emmanuel Pegnyemb, Marie Aleth Lacaille-Dubois

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

From the stem bark of Tetrapleura tetraptera, two new oleanane-type saponins, tetrapteroside A 3-O-{6-O-[(2E,6S)-2,6-dimethyl-6-hydroxyocta-2,7- dienoyl]-β-D-glucopyranosyl-(1 → 2)-β-D-glucopyranosyl-(1 → 3)-β-D-glucopyranosyl-(1 → 4)-[β-D-glucopyranosyl-(1 → 2)]-β-D-glucopyranosyl}-3,27-dihydroxyoleanolic acid (1), and tetrapteroside B 3-O-[β-D-glucopyranosyl-(1 → 2)-6-O-[(E)-feruloyl]- β-D-glucopyranosyl-(1 → 3)-β-D-glucopyranosyl-(1 → 4)-[β-D-glucopyranosyl-(1 → 2)]-β-D-glucopyranosyl}-3,27- dihydroxyoleanolic acid (2), were isolated. Further extractions from the roots led to the isolation of four known oleanane-type saponins. Their structures were elucidated by the combination of mass spectrometry (MS), one and two-dimensional NMR experiments.

Original languageEnglish
Pages (from-to)277-282
Number of pages6
JournalMagnetic Resonance in Chemistry
Volume47
Issue number3
DOIs
Publication statusPublished - Mar 1 2009

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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