Constituintes químicos das flores de Pterogyne nitens (Caesalpinioideae)

• Autor(a) principal: Regasini, Luis Octávio [UNESP]
• Data de Publicação: 2008
• Outros Autores: Fernandes, Daniara Cristina [UNESP], Castro-Gamboa, Ian [UNESP], Silva, Dulce Helena Siqueira [UNESP], Furlan, Maysa [UNESP], Bolzani, Vanderlan da Silva [UNESP], Barreiro, Eliezer Jesus, Cardoso-Lopes, Elaine Monteiro, Young, Maria Cláudia Marx, Torres, Luce Brandão, Vellosa, José Carlos Rebuglio, Oliveira, Olga Maria Mascarenhas de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/S0100-40422008000400018; http://hdl.handle.net/11449/26377
• topic: Pterogyne nitens; flavonoids; guanidine alkaloids

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.