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BIBTEX RIS

Salicilatos isolados de folhas e talos de Salix martiana Leyb. (Salicaceae)

2009; Brazilian Chemical Society; Volume: 32; Issue: 4 Linguagem: Inglês

10.1590/s0100-40422009000400029

ISSN

1678-7064

Autores

Carromberth Carioca Fernandes, Lorena Mayara de Carvalho Cursino, Jussival de Abreu Pinheiro Novaes, Camilla Avelino Demetrio, Orlando Libório Pereira Júnior, Cecília Veronica Núñez, Iêda Leão do Amaral,

Tópico(s)

Phytochemistry Medicinal Plant Applications

Resumo

STEMS OF Salix martiana Leyb.(SALICACEAE).Salix martiana Leyb. is an endemic species from the Amazon river floodplain areas (varzeas), of the State of Amazonas.Stems and leaves were extracted with dichloromethane, methanol and hydro-alcohol and these extracts were fractionated by using conventional chromatographic techniques.The major substances isolated, salicin and trichocarposide (6-0-p-coumaroyl salicin), were determined through analyses of NMR 1D ( 1 H and 13 C) and NMR 2D (gHSQC and gHMBC).These compounds were isolated for the first time in Salix martiana Leyb.(Salicaceae).The percentage of these compounds in S. martiana is very high.The extracts were analyzed for their DPPH antioxidant capacity and the methanolic from the leaves and the hydro-alcoholic from the stems were the more active.

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