Artículos de revistas
Ipomopsin and hymenain, two biscoumarins from seeds of Hymenaea courbaril
Registro en:
Phytochemistry Letters. Elsevier Science Bv, v. 2, n. 2, n. 59, n. 62, 2009.
1874-3900
WOS:000265523100002
10.1016/j.phytol.2008.11.003
Autor
Simoes, K
Du, J
Pessoni, RAB
Cardoso-Lopes, EM
Vivanco, JM
Stermitz, FR
Braga, MR
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) 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. 2 2 59 62 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) National Science Foundation [NSF-IBN 0335203] DOD-SERDP [SI1388] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) FAPESP [2004/04477-7, 2005/04139-7] National Science Foundation [NSF-IBN 0335203] DOD-SERDP [SI1388]