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Type: Artigo de periódico
Title: Polar constituents of the leaves of Machaonia brasiliensis (Rubiaceae).
Author: dos Santos, AR
de Barros, MP
Santin, SMD
Sarragiotto, MH
de Souza, MC
Eberlin, MN
Meurer, EC
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
Country: Brasil
Editor: Soc Brasileira Quimica
Citation: Quimica Nova. Soc Brasileira Quimica, v. 27, n. 4, n. 525, n. 527, 2004.
Rights: aberto
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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