Table 2.

Inhibition rates at 50 μM (%) of compounds 2 and 3a–3k in three cancer cell lines. (The treatment time used in cytotoxicity studies is 48 h).

Compounds	MCF-7	HepG2	HeLa
2	26 ± 6	54 ± 2	20 ± 1
3a	30 ± 2	52 ± 1	31 ± 7
3b	25 ± 2	46 ± 2	33 ± 7
3c	28 ± 2	30 ± 5	26 ± 2
3d	15 ± 7	44 ± 1	25 ± 2
3e	68 ± 2	63 ± 0	70 ± 1
3f	77 ± 1	69 ± 1	74 ± 0
3g	52 ± 1	48 ± 2	45 ± 2
3h	23 ± 1	41 ± 5	22 ± 2
3i	36 ± 7	53 ± 1	53 ± 2
3j	19 ± 2	39 ± 7	32 ± 4
3k	56 ± 1	63 ± 2	61 ± 3
Cisplatin	78 ± 1	86 ± 1	82 ± 1