their cytotoxicity against a panel of five humancancercelllines (HL-60, SMMC-7721, A-549, MCF-7 and SW480) using MTT assays. Most of them showed cytotoxicity and most of all, compounds 1a and 2h showed the highest cytotoxicpotency by HL-60 cancercelllines with IC50 values of 5.96 μM and 6.90 μM respectively; compound 3e showed the highest cytotoxicpotency against SMMC-7221 cancercell line with