Lipid constituents of Tridax procumbens

Abstract

Eight new compounds, isolated from Tridax procumbens, have been characterized as methyl 14-oxooctadecanoate, methyl 14-oxononacosanoate, 3-methylnonadecylbenzene, heptacosanyl cyclohexane car☐ylate, 1(2,2-dimethyl-3-hydroxypropyl)-2-isobutyl phthalate, 12-hydroxytetracosan- 15-one, 32-methyl-30-oxotetratriacont-31-en-1-ol and 30-methyl-28-oxodotriacont-29-en-1-oic acid by spectral data and chemical studies. Nine known compounds isolated for the first time from the plant, were identified as dotriacontanol, β-amyrone, Δ¹²-dehydrolupen-3-one, β-amyrin, lupeol, fucosterol, 9-oxoheptadecane, 10-oxononadecane and sitosterol. Although Δ¹²-dehydrolupen-3-one is reported synthetically, this is the first report of this compound from a natural source.