Flavonol Glycosides from Consolida armeniaca

Authors : Mustafa KÜÇÜKİSLAMOĞLU

Pages : 191-198

View : 13 | Download : 10

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Three known flavonol glycosides, i.e., kaempferol 3,7-O-\insert ignore into journalissuearticles values( a \);-L-dirhamnopyranoside insert ignore into journalissuearticles values({\bfseries 1});, kaempferol 3-O-\insert ignore into journalissuearticles values( b \);-D-glucopyranosyl-insert ignore into journalissuearticles values(1\insert ignore into journalissuearticles values( \ra \);2);-\insert ignore into journalissuearticles values( a-L-rhamnopyranoside-7-O-\insert ignore into journalissuearticles values( a \);-L-rhamnopyranoside insert ignore into journalissuearticles values({\bfseries 2}); and kaempferol 3-O-\insert ignore into journalissuearticles values( a \);-L-rhamnopyranoside-7-O-\insert ignore into journalissuearticles values( b \);-D-glucopyranosyl-insert ignore into journalissuearticles values(1\insert ignore into journalissuearticles values( \ra \);2);-\insert ignore into journalissuearticles values( a \);-L-rhamnopyranoside insert ignore into journalissuearticles values({\bfseries 3});, were isolated for the first time from the flowers of {\itshape Consolida armeniaca}, and the structures of flavonol glycosides were deduced by high field 1D and 2D NMR and FAB-MS spectroscopies. The acetyl derivatives of {\bfseries 1-3} were also prepared insert ignore into journalissuearticles values({\bfseries 1a, 2a, 3a}); and identified by NMR and positive FAB mass spectra.
Keywords : Consolida armeniaca, flavonol glycosides, acetylated flavonol compounds