Journal of the Brazilian Chemical Society
On-line version ISSN 1678-4790
CARVALHO, Mário G. de; OLIVEIRA, Márcia C. C. de and WERLE, Alceni A.. Chemical constituents from Luxemburgia nobilis (EICHL). J. Braz. Chem. Soc. [online]. 2000, vol.11, n.3, pp. 232-236. ISSN 1678-4790. http://dx.doi.org/10.1590/S0103-50532000000300005.
Chromatographic fractionation of the hexane extract from the branches of Luxemburgia nobilis (Ochnaceae) afforded b-sitosterol, stigmasterol, betulinic acid, linoleic acid, methyl-14-methylpentadecanoate, 13-epimanoyl oxide, hexadecanoic acid, tetraeicosanoic acid, hexaeicosanoic acid, the depside atranorin (1) and two new triglycerides (2 and 3). The structures were defined by IR, MS and 1H- and 13C-NMR spectral analysis involving comparison with literature data. The FAB-MS spectra analysis of the thiomethyl ethers (4 and 5) were used to define the structures of the triglycerides.
Keywords : Luxemburgia nobilis; Ochnaceae; triglycerides.