Revista Colombiana de Química
versão impressa ISSN 0120-2804
Two new chalcones: 2’, 6’-dihydroxy-4-isopenteniloxy-3,4(3’’ ’,3’’ ’-dimethylpyrano) chalcone and 4,2’, 6’- trihydroxy-3’,4’-metilenodioxo-3-isopentenilchalcone were isolated from the wood ethanolic extract of Beilschmiedia tovarensis. Isolation was performed by chromatographic techniques. The elucidation of the structure of the compounds was accomplished by spectroscopic techniques (IR, NMR-1H, 13C and MS). Also, the crude wood extract was tested in vitro for biological activity, having significant results for antimicrobial activity in Gram (+) stumps: Sataphylococcus aureus and Enterococcus faecalis. Test of antimalarial and antituberculosis activities gave negative results.
Palavras-chave : Lauraceae; Beilschmiedia tovarensis; chalcona; antimicrobial activity.