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Type: Artigo de periódico
Title: Ipomopsin and hymenain, two biscoumarins from seeds of Hymenaea courbaril
Author: Simoes, K
Du, J
Pessoni, RAB
Cardoso-Lopes, EM
Vivanco, JM
Stermitz, FR
Braga, MR
Abstract: A new biscoumarin (7-hydroxy-6,6'-dimethoxy-3,7'-dicoumarinyl ether), named hymenain (1) and the known biscoumarin ipomopsin (2) were isolated from the germinated seeds of Hymenaea courbaril var. stilbocarpa. Their structures were elucidated by spectroscopic methods. Scopoletin was also detected in the extracts by TLC and CC-MS analyses. Hymenain and ipomopsin showed direct scavenging effect on a stable free radical, 2,2-diphenyl-1-picryl-hydrazyl (DPPH) with the EC(50) values of 100 and 300 mu M, respectively. (C) 2008 Phytochemical Society of Europe. Published by Elsevier Ltd. All rights reserved.
Subject: Hymenaea courbaril
Free radical scavenging activity
7-Hydroxy-6,6 '-dimethoxy-3,7 '-dicoumarinyl ether
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.phytol.2008.11.003
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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