Otro
Constituintes químicos das flores de Pterogyne nitens (Caesalpinioideae)
Registro en:
Química Nova. Sociedade Brasileira de Química, v. 31, n. 4, p. 802-806, 2008.
0100-4042
10.1590/S0100-40422008000400018
S0100-40422008000400018
WOS:000256956200018
S0100-40422008000400018.pdf
Autor
Regasini, Luis Octávio
Fernandes, Daniara Cristina
Castro-Gamboa, Ian
Silva, Dulce Helena Siqueira
Furlan, Maysa
Bolzani, Vanderlan da Silva
Barreiro, Eliezer Jesus
Cardoso-Lopes, Elaine Monteiro
Young, Maria Cláudia Marx
Torres, Luce Brandão
Vellosa, José Carlos Rebuglio
Oliveira, Olga Maria Mascarenhas de
Resumen
The phytochemical investigation of the flowers of Pterogyne nitens (Caesalpinioideae) resulted in the isolation and identification of nine phenolic derivatives, quercetin 3-O-sophoroside, taxifolin, astilbin, ourateacatechin, caffeic, ferulic, sinapic, chlorogenic and gallic acid, besides two guanidine alkaloids, pterogynine, pterogynidine. This is the first time these compounds have been reported in P. nitens flowers. As this is a monospecific genus, these secondary metabolites may have taxonomical significance. Their structures were assigned on the basis of spectroscopic analyses, including two-dimensional NMR techniques. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)