Acylated preatroxigenin glycosides from Atroxima congolana

Mohamed Elbandy, Tomofumi Miyamoto, Clément Delaude, Marie Aleth Lacaille-Dubois

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Abstract

Six new acylated bisdesmosidic preatroxigenin saponins named atroximasaponins E1, E2 (1, 2), F1, F 2 (3, 4), and G1, G2 (5, 6) were isolated as three inseparable mixtures of the trans- and cis-p-methoxycinnamoyl derivatives, from the roots of Atroxima congolana. Their structures were established through extensive NMR spectroscopic analysis as 3-O-β -D-glucopyranosylpreatroxigenin-28-O-β-D-xylopyranosyl-(1→4) -α-L-rhamnopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→3)] -[4-O-trans-p-methoxycinnamoyl]-β-D-fucopyranoside (atroximasaponin E 1, 1), and its cis-isomer, atroximasaponin E2 (2), 3-O-β-D-glucopyranosylpreatroxigenin-28-O-β-D-xylopyranosyl-(1→4) -α-L-rhamnopyranosyl-(1→2)-[6-O-acetyl-β -D-glucopyranosyl-(1→3)1-[4-O-trans-p-methoxycinnamoyl]-β -D-fucopyranoside (atroximasaponin F1, 3), and its cis-isomer, atroximasaponin F2 (4), 3-O-β -D-glucopyranosylpreatroxigenin-28-O-β-D-apiofuranosyl-(1→3) -[α-L-rhamnopyranosyl-(1→2)]-[4-O-trans-p-methoxycinnamoyl] -β-D-fucopyranoside (atroximasaponin G1, 5), and its cis-isomer, atroximasaponin G2 (6), respectively.

Original languageEnglish
Pages (from-to)1154-1158
Number of pages5
JournalJournal of Natural Products
Volume66
Issue number9
Publication statusPublished - Sep 1 2003

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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

Cite this

Elbandy, M., Miyamoto, T., Delaude, C., & Lacaille-Dubois, M. A. (2003). Acylated preatroxigenin glycosides from Atroxima congolana. Journal of Natural Products, 66(9), 1154-1158.