Further flavonoids from the flowers of Prunus spinosa L
Monika Olszewska1, Maria Wolbiś
1Department of Pharmacognosy, Institute of Technology and Chemistry of Drugs, Medical University of Lódź, Poland.
Acta Poloniae Pharmaceutica
|October 9, 2002
Abstract:
Further seven flavonoids were isolated from the flowers of Prunus spinosa L.: quercetin 3-O-alpha-L-arabinopyranoside, 3-O-alpha-L-rhamnopyranoside, 3-O-beta-D-xylo-pyranoside, and 3-O-beta-glucopyranoside, kaempferol 3,7-di-O-alpha-L-rhamnopyranoside, kaempferol and quercetin 3-O-(4"-beta-D-glucopyranosyl)-alpha-L-rhamnopyranosides. Four of them have been found for the first time in this plant. Structural elucidation was performed by means of chemical and spectral methods (UV, LSI MS, 1D and 2D NMR).
