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Iridoid and Phenylethyl Glycosides from Globularia sintenisii

✍ Scribed by Hasan Kırmızıbekmez; İhsan Çalış; Sonia Piacente; Cosimo Pizza

Publisher
John Wiley and Sons
Year
2004
Tongue
German
Weight
97 KB
Volume
87
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

A new iridoid glycoside, sintenoside (1) and two new phenylethyl glycosides, globusintenoside (=2‐(3,4‐dihydroxyphenyl)ethyl‐O‐6‐O‐feruloyl‐β‐D‐glucopyranosyl‐(1→4)‐α‐L‐rhamnopyranosyl‐(1→3)‐4‐O‐caffeoyl‐β‐D‐glucopyranoside; 2) and 3′′′‐O‐methylcrenatoside (=1,2‐O‐[2‐(3,4‐dihydroxyphenyl)ethan‐1,2‐diyl]‐3‐O‐α‐L‐4‐O‐feruloyl‐rhamnopyranosyl‐β‐D‐glucopyranose; 3) were isolated from the underground parts of Globularia sintenisii, along with three known iridoid glycosides, lytanthosalin, globularin, catalpol, and six known phenylethyl glycosides, verbascoside, isoverbascoside, leucoscepthoside A, plantainoside C, martynoside, and isocrenatoside. The structure elucidation of the isolated compounds was performed by spectroscopic methods (MS and 1D and 2D NMR).

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