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DOI: 10.1055/s-2006-961484
© Georg Thieme Verlag Stuttgart · New York
New Flavonoid Glycosides from Arnicae Flos DAB 91
1 Part of short lectures and posters, 36th and 37th Annual Congress of the Gesellschaft für Arzneipflanzenforschung Freiburg (1988) and Braunschweig (1989), Federal Republic of Germany; see also: Merfort, I. (1988) Planta Med. 54, 571; Merfort, I. (1989)Planta Med. 55, 608.Publication History
1991
Publication Date:
05 January 2007 (online)
Abstract
Five flavonoid glycosides were identified from flowers of Arnica montana, ten from A. chamissonis subsp. foliosa var. incana. The structures were established on the basis of acid hydrolysis and spectral data (UV, NMR, MS) as the 7-β-glucosides of pectolinarigenin, apigenin, and chrysoeriol; luteolin 3′-O-β-glucoside; the 3-β-glucuronides of kaempferol, isorhamnetin, and 6-methoxykaempferol; the 3,7-di-β-glucosides of quercetin and patuletin; the 3-β-glucosides of betuletol and quercetagetin 6,3′,4′-trimethyl ether; and the 7-[6″-O-(2-methylbutyryl)]=glucosides of luteolin and eupafolin. The latter four are new natural compounds. Differences between these two Arnica species are discussed.
Key words
Arnica montana - Arnica chamissonis subsp. foliosa - Asteraceae - flavonoid glycosides