Table 4.

Results of antiproliferative activity testing (IC₅₀ values less than 10 μM are marked with an asterisk, while a dash denotes an IC₅₀ value higher than 100 μM).

compound	IC50 (μM), 72 h, MTT test
	MCF-7	MDA-MB-231	PC-3	HeLa	HT-29	A549	MRC-5
3	—	1.06*	78.55	8.68*	—	—	N/Aa
4	14.42	70.64	9.60*	—	—	17.73	N/A
7	—	9.18*	—	—	—	—	—
8	—	—	43.11	—	—	4.25*	N/A
11	—	96.31	26.29	18.16	—	—	N/A
12	—	82.42	11.19	43.71	—	36.57	—
13	—	—	—	69.61	16.39	—	—
14	—	—	—	6.97*	24.07	—	—
15	—	—	—	21.65	23.59	—	N/A
16	—	98.90	33.90	43.04	68.07	—	—
17	—	—	—	95.91	—	19.56	—
18	22.92	22.46	82.60	19.48	27.15	79.75	—
19	—	14.79	—	12.07	34.35	—	N/A
20	N/A	87.47	—	—	61.74	—	—
21	37.24	21.67	—	9.31*	98.50	—	N/A
22	—	45.57	—	—	6.06*	—	—
23	—	7.60*	11.44	—	—	—	N/A
24	—	5.18*	12.26	77.61	—	—	—
DOX [53]	0.20*	0.09*	84.23	0.07*	0.15*	4.91*	0.10*

^aIC₅₀ value not available due to nonlinear dose dependence or hormetic effect.