Abstract
Three new prenylated flavonoids, macarindicins A–C (1–3), as well as seven known compounds (4–10) were isolated from the twigs of Macaranga indica. Their structures were elucidated on the basis of extensive spectroscopic interpretation. Compounds 2 and 3 enriched the diversity of prenyl moiety in genus Macaranga especially in the aspect of various lengths of prenyl chain. All the known compounds were isolated from M. indica for the first time and this plant was found to contain large number of ellagic acid. Compounds 1–10 were tested for their cytotoxicity against four cancer cell lines (MCF-7, Hep G2, Hela and P388) and showed IC50 values in the range of 2.61–20.35μg/mL.
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