Abstract
Phytochemical investigation of the hexane, ethyl acetate and methanolic extracts of roots and leaf stalks of Euterpe precatoria Mart. (acai), afforded stigmast-4-en-6b-ol-3-one (3); p-hydroxy benzoic acid (4); 3b-O-D-glucopyranosyl-sitosterol (5); b-sitosterol palmitate (6); mixtures of b-sitosterol and stigmasterol (1 and 2), a-, b-amirin and lupeol (7, 8 and 9), friedelin-3-one and 28-hydroxy-friedelin-3-one (10 and 11) and a-, b-D-glucose (12, 13). Except for 1, 2 and 4, the other isolated constituents are described in the genus for the first time. Compounds 3 and 5 gave good results in the brine shrimp bioassay, which detects compounds with potential uses as antitumor agents, pesticides, etc..
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