Journal of the Brazilian Chemical Society
On-line version ISSN 1678-4790
AMER, Masouda E. et al. Alkaloids and flavone acyl glycosides from Acanthus arboreus. J. Braz. Chem. Soc. [online]. 2004, vol.15, n.2, pp. 262-266. ISSN 1678-4790. http://dx.doi.org/10.1590/S0103-50532004000200016.
Phytochemical study of Acanthus arboreus resulted in the isolation of three novel alkaloids: 6-hydroxy-benzoxazolinone, 4-hydroxyacanthamine and acanthaminoside. In addition, a new acyl flavonoid apigenin-7-O-b-D-(6"-trans-p -coumaroyl)-3"-O-acetyl glucopyranoside was also isolated. The known compounds were identified as apigenin, apigenin-7- O-b-D-(6"-trans-p-coumaroyl) -glucoside, vanillic acid, lupeol, stigmasterol and sitosterol glucoside. The structures were determined by physical, chemical and spectral techniques.
Keywords : Acanthus arboreus; Acanthaceae; alkaloids; flavone acyl glycosides; antimicrobial activity.