Figure 3.

Inhibitory activity of bromophenol derivatives (A: compounds 4a–4i; B: compounds 5a–5i; C: compounds 6a–6f, 7a–7c and Sunitinib) against five human cancer cell lines; the percent inhibition rate of tumor cell at 10 µg/mL inhibitor; the cells were seeded in a 96-well plate and incubated overnight. Then, the cells were treated with various amounts of compounds and incubated for 48 h. Cell proliferation was evaluated with the MTT Assay. Sunitinib (SN) as the positive control.