Table 1.

IC₅₀ values of (2) and UNBS1450 (positive control) on U937 cells at 24, 48, and 72 h.

IC50 Values (µg/mL)		U937	Jurkat	K562	Raji
Compound (2)	24 h	9.3 ± 1.2	23.7 ± 9.5	NA	NA
	48 h	7.7 ± 1.7	12.2 ± 5.7	20.5 ± 2.3	NA
	72 h	6.1 ± 07	9.6 ± 1.1	11.9 ± 0.4	NA
UNBS1450	24 h	0.010 ± 0.001	0.014 ± 0.001	0.033 ± 0.006	0.025 ± 0.007
	48 h	0.007 ± 0.001	0.008 ± 0.001	0.013 ± 0.005	0.014 ± 0.004
	72 h	0.004 ± 0.001	0.006 ± 0.001	0.015 ± 0.001	0.008 ± 0.001

NA: No activity.