Lupane-type Triterpenoids Isolated from the Plant Tetracera scandens

From the MeOH fraction of aerial parts of the medicinal plant Tetracera scandens, four compounds 1-4 were isolated by repeated column chromatography. Their structures were identified as lupeol (1), betulinic acid (2), acid betulinic 28-methyl ester (3), and b-sitosterol (4) on the basis of spectroscopic analyses. This is the first report of the existence of lupeol and acid betulinic 28-methyl ester from the plant T. scandens.

Keywords: Tetracera scandens; lupane-type triterpenoid; lupeol; betulinic acid; betulinic acid 28-methyl ester.

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