Table 1.

Antitumor cell line growth activities of compounds against three tumor cell lines in vitro. Data are expressed as mean ± SD (n = 3).

Compound	IC50 (μM)
	MCF-7	HeLa	Hep-G2
Curcumin	9.40 ± 0.49	17.67 ± 1.10	22.88 ± 1.26
1	21.91 ± 1.73	23.32 ± 3.95	40.31 ± 1.10
2	53.46 ± 4.73	>80	>80
3	13.80 ± 0.88	6.78 ± 0.19	37.80 ± 0.71
4	45.74 ± 3.32	19.47 ± 1.54	81.71 ± 0.69
5	26.94 ± 1.20	15.60 ± 2.33	42.39 ± 5.58
6	>80	67.39 ± 5.59	>80
7	28.15 ± 1.37	13.66 ± 0.56	56.37 ± 2.18
8	12.90 ± 0.53	8.43 ± 0.32	17.37 ± 0.68
9	17.52 ± 2.60	9.57 ± 0.22	22.54 ± 1.99
10	39.22 ± 4.90	29.81 ± 1.46	48.82 ± 3.30
11	8.60 ± 0.20	18.14 ± 0.77	25.66 ± 1.97
12	6.64 ± 0.46	15.61 ± 0.65	19.70 ± 0.69
13	8.99 ± 0.49	11.52 ± 0.58	19.04 ± 1.22
14	9.35 ± 0.76	20.80 ± 1.74	31.83 ± 1.22
15	8.71 ± 0.86	13.72 ± 0.89	22.36 ± 0.99
16	9.22 ± 0.14	16.41 ± 0.09	29.07 ± 0.96
17	9.21 ± 0.56	10.56 ± 0.31	22.37 ± 1.92
18	9.61 ± 1.03	14.28 ± 1.17	28.47 ± 1.37