Portal de Periódicos da CAPES

Artigo Acesso aberto Produção Nacional Revisado por pares

BIBTEX RIS

Constituintes químicos dos frutos de Copaifera langsdorffii Desf.

2008; Brazilian Chemical Society; Volume: 31; Issue: 5 Linguagem: Inglês

10.1590/s0100-40422008000500025

1678-7064

José de Sousa Lima Neto, Nilce V. Gramosa, Edilberto R. Silveira,

Sesquiterpenes and Asteraceae Studies

CHEMICAL CONSTITUENTS OF THE FRUITS OF Copaifera langsdorffii Desf.Phytochemical investigation of the hexane extract of fruit shells of Copaifera langsdorffii Desf.(Caesalpinioideae) afforded ent-kaur-16-en-19-oic acid, polyalthic acid, nivenolide and the mixture of caryophyllene oxide and ent-kaur-16-en-19-oic acid.The chloroform extract of unripe seeds led to the isolation of coumarin and the GC/MS analysis of the extract allowed the identification of 81.8% of the fatty acid composition after hydrolysis followed by methylation.The main fatty acid identified was oleic acid (33.1%).The isolation of all secondary metabolites was accomplished by modern chromatographic methods and the structure determination was accomplished by spectrometric methods (IR, MS, NMR 1 H and 13 C).