Kaempferol-3,4'-di-O-beta-glucopyranoside-7-O-alpha-rhamnopyranoside as a new flavonoid from Iberis amara L.
A new flavonol glycoside, kaempferol-3,4'-di-O-beta-glucopyranoside-7-O-alpha-rhamno-pyranoside, was isolated from the ethanolic extract of the whole fresh plant of Iberis amara L., an European plant used in gastrointestinal medicine. The structure was established by a combination of 1D and 2D NMR techniques (COSY, HSQC, HMBC, NOESY) as well as UV, IR and mass spectral data.
Kroll
U
U
Steigerwald Arzneimittelwerk GmbH, Havelstr 5, D-64295 Darmstadt, Germany. kroll@steigerwald.de
Reif
K
K
Lederer
I
I
Förster
G
G
Zapp
J
J