Characterization of flavonoid and naphthopyranone derivatives from Eriocaulon ligulatum using liquid chromatography tandem mass spectrometry
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Data
2009-12-01
Autores
Santos, Lourdes Campaner dos [UNESP]
da Silva, Marcelo Aparecido [UNESP]
Rodrigues, Clenilson Martins [UNESP]
Carbone, Virginia
Napolitano, Assunta
Bassarello, Carla
Mari, Angela
Piacente, Sonia
Pizza, Cosimo
Vilegas, Wagner [UNESP]
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Editor
Natural Products Inc
Resumo
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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Palavras-chave
LC/MS/MS, Eriocaulon ligulatum, flavonoids, naphthopyranones
Como citar
Natural Product Communications. Westerville: Natural Products Inc, v. 4, n. 12, p. 1651-1656, 2009.