Table 2.

Antiproliferative activity of compounds 1–5 against three human cancer cell lines.

Compound	IC50 (µM) for the Different Carcinoma Cell Lines
	A549 (Lung)	HepG2 (Liver)	MCF-7 (Breast)
1	72.7 ± 1.1	86.6 ± 3.2	106.5 ± 4.2
2	55.7 ± 2.5	148.4 ± 5.6	128.0 ± 2.8
3	208.5 ± 6.8	220.4 ± 3.6	225.4 ± 5.1
4	89.4 ± 2.3	126.8 ± 6.4	170.7 ± 4.5
5	97.5 ± 2.6	242.6 ± 6.4	158.2 ± 5.5
Doxorubicin	2.1 ± 0.08	2.2 ± 0.15	1.9 ± 0.05