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Structure elucidation of new oleanane-type glycosides from three species of Acanthophyllum

✍ Scribed by Gaoussou Timité; Anne-Claire Mitaine-Offer; Tomofumi Miyamoto; Mohammad Ramezani; Abdolhossein Rustaiyan; Jean-François Mirjolet; Olivier Duchamp; Marie-Aleth Lacaille-Dubois

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
140 KB
Volume
48
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

From the roots of three species of Acanthophyllum (Caryophyllaceae), two new gypsogenic acid glycosides, 1 and 2, were isolated, 1 from A. sordidum and A. lilacinum, 2 from A. elatius and A. lilacinum, together with three known saponins, glandulosides B and C, and SAPO50. The structures of 1 and 2 were established mainly by 2D NMR techniques as 23‐O‐β‐D‐galactopyranosylgypsogenic acid‐28‐O‐β‐D‐glucopyranosyl‐(1→3)‐[β‐D‐glucopyranosyl‐(1→6)]‐β‐D‐galactopyranoside (1) and gypsogenic acid‐28‐O‐β‐D‐glucopyranosyl‐(1→3)‐[β‐D‐glucopyranosyl‐(1→6)]‐β‐D‐galactopyranoside (2). The cytotoxicity of several of these saponins was evaluated against two human colon cancer cell lines (HT‐29 and HCT 116). Copyright © 2010 John Wiley & Sons, Ltd.

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