Caffeic acid esters of phenylethanoid glycosides from Fraxinus ornus bark

Publication Type
Journal contribution
Authors
Iossifova, T.; Vogler, B.; Klaiber, I.; Kostova, I.; Kraus, W.
Year of publication
1998
Published in
Phytochemistry
Band/Volume
50/2
Page (from - to)
297-301
Abstract

A new phenylethanoid glucoside, 2-(3,4-dihydroxyphenyl)-ethyl-O-.beta.-D-glucopyranosyl-(1,6)-3-O-trans-caffeoyl-.beta.-D-glucopyranoside, named isolugrandoside (I), was isolated from Fraxinus ornus bark, together with the five known phenylethanoid glycosides 2-(4-hydroxyphenyl)-ethyl-(6-O-caffeoyl)-.beta.-D-glucopyranoside, calceolarioside B, verbascoside, isoacteoside and lugrandoside. Isomerization of lugrandoside to isolugrandoside was not found under the employed conditions of isolation and purification.

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