title: Flavonoid Glycosides from Arnica montana and Arnica chamissonis.
abstract: Five flavonoid glycosides were identified from flowers of ARNICA MONTANA, four from A. CHAMISSONIS subsp. FOLIOSA var. INCANA. The structures were established on the basis of total acid hydrolysis and spectral data (UV, (1)H-NMR, (13)C-NMR, MS) as hispidulin 7- O-beta-glucoside, isorhamnetin 3- O-beta-glucoside, 3- O-beta- D-glucopyranosides of spinacetin, 6-methoxykaempferol and patuletin and querectin 3- O-(6''- O-acetyl)-beta- D-glucopyranoside. The latter compound can serve as distinctive marker between these two ARNICA species. The (1)H-NMR spectra in CD (3)OD are discussed.
authors.affiliation: Institut für Pharmazeutische Biologie der Universität Düsseldorf, Geb. 26.23, Universitätsstr. 1, D-4000 Düsseldorf 1, Federal Republic of Germany.
authors.forename: I
authors.initials: I
authors.lastname: Merfort
authors.forename: D
authors.initials: D
authors.lastname: Wendisch