Table 2.

IC₅₀ values (μM) for selected compounds (1, 2, 5–8, 10, and 11) against HCT-15 and K562 cell lines.

Compounds	IC50 µM
	HCT-15	K562
1	13.9 ± 0.6	9.2 ± 0.4
2	2.3 ± 0.1	2.3 ± 0.3
5	4.8 ± 0.4	13.3 ± 0.6
6	5.8 ± 0.7	22.1 ± 0.9
7	6.2 ± 0.9	6.3 ± 0.6
8	5.0 ± 0.4	4.5 ± 0.2
10	2.8 ± 0.1	3.0 ± 0.4
11	12.7 ± 0.1	8.8 ± 0.3
Adriamycin	0.0050 ± 0.0009	0.0140 ± 0.0009

Data shown is the mean ± standard error from three independent experiments. IC₅₀: half maximal inhibitory concentration.