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Phenolic Compounds from the Fresh Leaves of Eucalyptus maideni

✍ Scribed by Li-Wen Tian; Chong-Ren Yang; Ying-Jun Zhang

Publisher
John Wiley and Sons
Year
2010
Tongue
German
Weight
187 KB
Volume
93
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Four new phenolic compounds, 7‐O‐methylcatechin 5‐O‐β‐D‐glucopyranoside (1), 6‐O‐feruloyl‐D‐glucopyranose (2), demethylpiperitol 4__‐O__‐β‐D‐glucopyranoside (3), and 2‐episesaminol 2‐O‐β‐D‐glucopyranoside (4) were isolated from the fresh leaves of Eucalyptus maideni, together with six hydrolyzable tannins, 5–10, a flavonol glycoside, 11, three simple phenolics, 12–14, a monoterpene glucoside, 15, and a rosenoside, 16. Their structures were determined on the basis of detailed spectroscopic analysis, acidic hydrolysis, and enzymatic hydrolysis. The known compounds 10 and 13 were obtained from the genus Eucalyptus for the first time.

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