Table 2.

Cytotoxicity (IC₅₀ μM) of compounds 1–5.

Compound	Cell Lines
	DLD-1	HCT-116	T-47D	K562
1	– a	– a	– a	– a
2	– a	– a	– a	– a
3	0.001	0.001	0.001	0.001
4	2.4	2.7	0.3	0.05
5	1.1	8.0	0.7	0.7
6	– a	– a	– a	– a
7	– a	– a	– a	– a
8	– a	– a	– a	– a
Actinomycin D	1.9	0.2	0.6	0.03

^a IC₅₀ > 10 μM.