Constituintes químicos da raiz e do talo da folha do açaí (Euterpe precatoria Mart., Arecaceae) Chemical constituents from roots and leaf stalks of açaí (Euterpe precatoria Mart., Arecaceae)

Química Nova

关键词: steroids;    triterpenoids;    açaí;   

DOI  :  10.1590/S0100-40422005000400011

来源: DOAJ

【 摘 要 】

Phytochemical investigation of the hexane, ethyl acetate and methanolic extracts of roots and leaf stalks of Euterpe precatoria Mart. ("açaí"), afforded stigmast-4-en-6beta-ol-3-one (3); p-hydroxy benzoic acid (4); 3beta-O-D-glucopyranosyl-sitosterol (5); beta-sitosterol palmitate (6); mixtures of beta-sitosterol and stigmasterol (1 and 2), alpha-, beta-amirin and lupeol (7, 8 and 9), friedelin-3-one and 28-hydroxy-friedelin-3-one (10 and 11) and alpha-, beta-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..

【 授权许可】

Unknown