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Type: Artigo de periódico
Title: Constituintes polares das folhas de Machaonia brasiliensis (Rubiaceae)
Title Alternative: Polar constituents of the leaves of Machaonia brasiliensis (Rubiaceae)
Author: Santos, Anderson Rogério dos
Barros, Michely Pereira de
Santin, Silvana Maria de Oliveira
Sarragiotto, Maria Helena
Souza, Maria Conceição de
Eberlin, Marcos Nogueira
Meurer, Eduardo Cesar
Abstract: Chemical investigation of the MeOH extract of the leaves of Machaonia brasiliensis (Rubiaceae) resulted in the isolation and identification of 3beta-O-beta-glucopyranosyl stigmasterol, 3beta-O-beta-glucopyranosyl sitosterol, secologanoside, 7-O-beta-glucopyranosyl quercetagetin, 4,5-O-dicaffeoylquinic acid and 5-O-caffeoylquinic acid. The structures of these compounds were established by spectroscopic analysis, including 2D NMR experiments. The chemotaxonomic relevance of the isolation of secologanoside is discussed.
Subject: Machaonia brasiliensis
chlorogenic acids
Editor: Sociedade Brasileira de Química
Rights: aberto
Identifier DOI: 10.1590/S0100-40422004000400002
Date Issue: 1-Aug-2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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