The phytochemical study of the MeOH extract from the fruits of Ardisia kivuensis was carried out using repeated silica gel column chromatography followed by Sephadex LH-20 to afford a new alkenylmethylresorcinol, ardisinol III (1) along with three known compounds, oleanolic acid, β-sitosterol and pentacosanoic acid. The structure of 1 was elucidated using spectroscopic analysis (NMR and MS), and comparison with published data. Compound 1 had weak antioxidant activity (IC50 109.8 μg/mL) while other compounds were not active as compared to L-ascorbic acid (IC50 3.9 μg/mL).
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