Glucuronide triterpene saponins from Bersama engleriana

Azefack Léon Tapondjou, Tomofumi Miyamoto, Marie Aleth Lacaille-Dubois

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Five 3-O-glucuronide triterpene saponins (1-5) were isolated from the stem bark of Bersama engleriana Gurke along with two known saponins, polyscias saponin C and aralia saponin 15, and one major C-glycoside xanthone, mangiferin. The structures of the saponins were established mainly by means of spectroscopic methods (one- and two-dimensional NMR spectroscopy as well as FAB-, HRESI-mass spectrometry) as 3-O-[β-d-glucopyranosyl-(1 → 2)-β-d-glucuronopyranosyl]-28-O-[β-d-glucopyranosyl]-betulinic acid (1), 3-O-[β-d-glucopyranosyl-(1 → 2)-[β-d-galactopyranosyl-(1 → 3)]-β-d-glucuronopyranosyl]-oleanolic acid (2), 3-O-[β-d-glucopyranosyl-(1 → 3)-β-d-glucuronopyranosyl]-28-O-[β-d-xylopyranosyl-(1 → 6)-β-d-glucopyranosyl]-oleanolic acid (3), 3-O-[β-d-galactopyranosyl-(1 → 3)-β-d-glucuronopyranosyl]-28-O-[β-d-glucopyranosyl-(1 → 4)-β-d-glucopyranosyl]-oleanolic acid (4), and 3-O-[β-d-glucopyranosyl-(1 → 3)-β-d-galactopyranosyl-(1 → 3)-β-d-glucuronopyranosyl]-28-O-[β-d-xylopyranosyl-(1 → 6)-β-d-glucopyranosyl]-oleanolic acid (5).

Original languageEnglish
Pages (from-to)2126-2132
Number of pages7
JournalPhytochemistry
Volume67
Issue number19
DOIs
Publication statusPublished - Oct 1 2006

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Plant Science
  • Horticulture

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