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Constituintes químicos das flores de Pterogyne nitens (Caesalpinioideae)

2008; Brazilian Chemical Society; Volume: 31; Issue: 4 Linguagem: Inglês

10.1590/s0100-40422008000400018

1678-7064

Luís Octávio Regasini, Daniara Cristina Fernandes, Ian Castro‐Gamboa, Dulce Helena Siqueira Silva, Maysa Furlan, Vanderlan da Silva Bolzani, Eliezer J. Barreiro, Elaine Monteiro Cardoso-Lopes, Maria Cláudia Marx Young, Luce Brandão Torres, José Carlos Rebuglio Vellosa, Olga Maria Mascarenhas de Faria Oliveira,

Phytochemistry Medicinal Plant Applications

THE FLOWERS OF 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 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.