Xanthones and flavonoids from Leiothrix curvifolia and Leiothrix flavescens

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Data

2001-04-01

Autores

Santos, L. C.
Piacente, S.
De Riccardis, F.
Eletto, A. M.
Pizza, C.
Vilegas, Wagner [UNESP]

Título da Revista

ISSN da Revista

Título de Volume

Editor

Elsevier B.V.

Resumo

8-Carboxymethyl-1,6-dihydroxy-3,5-dimethoxyxanthone 8-carboxymethyl-1,5,6-trihydroxy-3-methoxyxanthone and 8-carboxy-methyl-1,3,5,6-tetrahydroxyxanthone were isolated from the capitula of Leiothrix curvifolia and Leiothrix flavescens and characterized by spectroscopic methods, mainly 1D and 2D NMR experiments, as well as by electrospray mass spectrometry. Eight known flavonoids were also isolated and they were identified by 1D and 2D NMR experiments and comparison with literature data. (C) 2001 Elsevier B.V. Ltd. All rights reserved.

Descrição

Palavras-chave

xanthone, flavonoids, Leiothrix sp., Eriocaulaceae

Como citar

Phytochemistry. Oxford: Pergamon-Elsevier B.V., v. 56, n. 8, p. 853-856, 2001.