Table 4. Effects of NSC749235, NSC764638, and DNR^* on the growth of two cancer cell lines after 24 and 48 h, as indicated by the IC₅₀ ^a values (μM).

	24 h			48 h
Cell line type	NSC749235	NSC764638	DNR*	NSC749235	NSC764638	DNR*
HeLa	14.54 ± 0.54	>50	1.58 ± 0.11	5.54 ± 0.27	>50	0.46 ± 0.06
A549	17.5 ± 0.13	>50	1.05 ± 0.13	12.35 ± 0.68	>50	0.65 ± 0.02

^*DNR represents Daunorubicin.

^aIC₅₀ indicates the concentrations that inhibited cell growth by 50%.