Flavonol Glycosides from Asperula arvensis L.

Authors : Zühal GÜVENALP, L Ömür DEMİREZER

Pages : 163-169

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :From the aerial parts of Asperula arvensis L. 9 known flavonol glycosides, namely quercetin insert ignore into journalissuearticles values(1);, isoquercitrin [= quercetin 3-O-b-glucopyranoside] insert ignore into journalissuearticles values(2);, hyperin [= quercetin 3-O-b -galactopyranoside] insert ignore into journalissuearticles values(3);, quercetin 7-O-b-galactopyranoside insert ignore into journalissuearticles values(4);, quercetin 4`-O-b-galactopyranoside insert ignore into journalissuearticles values(5);, isorhamnetin 3-O-b -galactopyranoside insert ignore into journalissuearticles values(6);, isorhamnetin 5-O-b-galactopyranoside insert ignore into journalissuearticles values(7);, dihydrokaempferol 7-4`-dimethylether 3-O-b -glucopyranoside insert ignore into journalissuearticles values(8); and isorhamnetin 3-O-a -rhamnopyranosyl insert ignore into journalissuearticles values(1``` \to 6``);-b -glucopyranosid insert ignore into journalissuearticles values(9);, were isolated. The structures of the compounds were elucidated by high field 1D and 2D NMR and ESI-MS spectroscopies.
Keywords : Asperula arvensis, Rubiaceae, flavonol glycosides, quercetin, isoquercitrin, hyperin, quercetin 7 O b galactopyra\ noside, quercetin 4` O b galactopyra\ noside, isorhamnetin 3 O b galactopyra\ noside, isorhamnetin 5 O b galactopyra\ noside, dihydro