Three New Acylated Triterpene Saponins from Acanthophyllum s quarrosum

Three new triterpenoid saponins, 1−3, were isolated from the roots of Acanthophyllum squarrosum. Their structures were established mainly by 2D NMR techniques as 3-O-β-d-galactopyranosyl-(1→2)-[β-d-xylopyranosyl-(1→3)]-β-d-glucuronopyranosyl-gypsogenin-28-O-β-d-xylopyranosyl-(1→3)-β-d-xylopyranosyl-...

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Bibliographic Details
Published in:Journal of natural products (Washington, D.C.) D.C.), 2001-07, Vol.64 (7), p.920-924
Main Authors: Gaidi, Ghezala, Miyamoto, Tomofumi, Rustaiyan, Abdolhossein, Lacaille-Dubois, Marie-Aleth
Format: Article
Language:English
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Summary:Three new triterpenoid saponins, 1−3, were isolated from the roots of Acanthophyllum squarrosum. Their structures were established mainly by 2D NMR techniques as 3-O-β-d-galactopyranosyl-(1→2)-[β-d-xylopyranosyl-(1→3)]-β-d-glucuronopyranosyl-gypsogenin-28-O-β-d-xylopyranosyl-(1→3)-β-d-xylopyranosyl-(1→4)-β-d-xylopyranosyl-(1→4)-3-O-acetyl-α-l-rhamnopyranosyl-(1→2)-3,4-di-O-acetyl-β-d-fucopyranoside (1), 3-O-β-d-galactopyranosyl-(1→2)-[β-d-xylopyranosyl-(1→3)]-β-d-glucuronopyranosyl-gypsogenin-28-O-β-d-xylopyranosyl-(1→4)-α-l-rhamnopyranosyl-(1→2)-[5-O-acetyl-α-l-arabinofuranosyl-(1→3)]-4-O-acetyl-β-d-fucopyranoside (2), and 3-O-β-d-glucopyranosyl-quillaic acid-28-O-α-l-rhamnopyranosyl-(1→2)-α-l-arabinopyranosyl-(1→2)-[β-d-glucopyranosyl-(1→6)]-β-d-glucopyranoside (3).
ISSN:0163-3864
1520-6025
DOI:10.1021/np010002c