Constituintes químicos das flores de Pterogyne nitens (Caesalpinioideae)

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 guanid...

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Detalhes bibliográficos
Autores: Regasini, Luis Octávio [UNESP], 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
Estado:Versão publicada
Data de publicação:2008
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositório:Repositório Institucional da UNESP
Idioma:português
OAI Identifier:oai:repositorio.unesp.br:11449/26377
Acesso em linha:http://dx.doi.org/10.1590/S0100-40422008000400018
http://hdl.handle.net/11449/26377
Access Level:Acceso aberto
Palavra-chave:Pterogyne nitens
flavonoids
guanidine alkaloids
Descrição
Resumo: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.

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