Figure 4.

Effects of compound 20 (a), 21 (b), 22 (c) on cell viability of the prostate cancer cell line LnCAP and HEK293 as the control cell line. Cells were treated with increasing concentrations of compounds, with a final DMSO concentration of 0.5 vol %. Cell viability was measured by MTT assays. Results represent three independent experiments with four technical replicates each. Boxed molecule shows the electrochemically generated benzoxazinone backbone precursor for the synthesis of compounds 20, 21 and 22.