Further flavonoids from the flowers of Prunus spinosa L
Olszewska, M.; Wolbiś, M.
Acta Poloniae Pharmaceutica 59(2): 133-137
2002
ISSN/ISBN: 0001-6837 PMID: 12365605 Document Number: 548697
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).