Cytotoxic limonoids from the bark of Walsura cochinchinensis
2019
Abstract Three new limonoids, walsucochinones A-C ( 1 – 3 ), along with eight known compounds, were isolated from an ethyl acetate extract of the bark of Walsura cochinchinensis . Their structures were determined using spectroscopic techniques, mainly 1-D and 2-D NMR. The ethyl acetate extract showed cytotoxic activity against MCF-7 human breast cancer cells and cytotoxicity of the isolated compounds were evaluated in vitro using the SRB assay. Walsucochinone C ( 3 ) exhibited the most active effect with IC 50 value of 16.4 ± 0.2 μM.
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