New Acylated Flavonol Glycosides and a Phenolic Profile of Pritzelago alpina, a Forgotten Edible Alpine Plant.
Chem Biodivers
; 13(2): 188-97, 2016 Feb.
Article
em En
| MEDLINE
| ID: mdl-26880431
ABSTRACT
Thirteen acylated flavonoid glycosides, 1-13, including eleven new congeners, 3-13, were isolated from the aerial parts of Pritzelago alpina (Brassicaceae) by a combination of column chromatography on Sephadex LH-20, and preparative and semi-preparative HPLC. The structures were established by extensive NMR and MS experiments in combination with acid hydrolysis and sugar analysis by GC/MS. The new compounds were shown to be kaempferol and quercetin glycosides acylated for most of them by a branched short chain fatty acid or a hydroxycinnamic acid residue on the sugar portion. As shown by a HPLC-DAD analysis of a MeOH extract, these compounds are the main phenolic constituents in the aerial parts of the plant.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fenóis
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Brassicaceae
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Flavonóis
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Glicosídeos
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article