Characterization of flavonoid and naphthopyranone derivatives from Eriocaulon ligulatum using liquid chromatography tandem mass spectrometry.
Nat Prod Commun
; 4(12): 1651-6, 2009 Dec.
Article
em En
| MEDLINE
| ID: mdl-20120100
ABSTRACT
Liquid chromatography-electrospray ionization multistage ion trap mass spectrometry (LC-ESI-IT-MS(n)) was used to analyze the secondary metabolites in the methanol extract of the capitulae of Eriocaulon ligulatum. The major components were mono- and diglycosides of flavonoids and naphthopyranones. Eleven compounds, including four new flavonol glycosides, were identified based on their fragmentation patterns in MS experiments and on NMR analysis of the isolated compounds. The described data may contribute to a better understanding of the taxonomic classification of the Eriocaulaceae family.
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Base de dados:
MEDLINE
Assunto principal:
Flavonoides
/
Cromonas
/
Eriocaulaceae
/
Naftalenos
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article