A new isoflavone glycoside from dalbergia nigra
The new 5-hydroxy-6, 7-dimethoxy-4'-O-(6-O-D-apio-beta-D-furanosyl-beta-D-glucopyranosyl)i soflavone (1) has been isolated from Dalbergia nigra. The structure was elucidated using extensive spectroscopic analysis (1D and 2D NMR, MS, IR, UV).
Mathias
L
Setor de Quimica de Produtos Naturais-CCT/CCTA, Universidade Estadual do Norte Fluminense, 28015-620 Campos-RJ, Brazil, and Departamento de Quimica, Universidade Federal de Sao Carlos, Sao Carlos-SP, Brazil.
Vieira
IJC
Braz-Filho
R
Rodrigues-Filho
E