Please use this identifier to cite or link to this item:
https://repositorio.ufba.br/handle/ri/3788
metadata.dc.type: | Artigo de Periódico |
Title: | Estudo fitoquímico da madeira de Guarea macrophylla (Meliaceae) |
Other Titles: | Química Nova |
Authors: | Lago, João Henrique G. Roque, Nídia Franca |
metadata.dc.creator: | Lago, João Henrique G. Roque, Nídia Franca |
Abstract: | In the present work, the crude ethanol extract from wood of G. macrophylla was submitted to liquid/liquid partition between hexane, CH2Cl2, EtOAc and n-BuOH. Each phase was individually chromatographed over silica gel, Sephadex LH-20 or Amberlite XAD-2 to give eight terpene derivatives, such as five sesquiterpenoids (caryophyllene oxide, guai-6-en-10β-ol, spathulenol, aromadendrane-4β,10α-diol and aloaromadendrane-4α,10β-diol) as well as three triterpenoids (cicloart-24-ene-3β,23(R*)-diol, cicloart-24-ene-3β,23(S*)-diol, and cicloart-23E-ene-3β,25-diol). Additionally, were isolated three fatty acids (linolenic, linoleic and stearic), two steroids (sitosterol and stigmasterol) and sacarose. The structures of all these compounds were characterized by spectrometric analysis, mainly mass spectrometry and NMR and comparison of these data described in the literature. |
Keywords: | Meliaceae, Guarea macrophylla cycloartane triterpenoids |
URI: | http://www.repositorio.ufba.br/ri/handle/ri/3788 |
Issue Date: | 2009 |
Appears in Collections: | Artigo Publicado em Periódico (Química) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
v32n9a22.pdf | 3,17 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.