Table 1. IC₅₀ and SI Data for Compounds 2, 3a–j, and Cisplatin.

compound	IC50 (μM)		SIa
	A549 cell line	L929 cell line
2	>500	>500
3a	91.35 ± 21.89	>500	>5.47
3b	410.15 ± 220.38	>500
3c	>500	>500
3d	>500	>500
3e	176.23 ± 56.50	>500	>2.84
3f	250.61 ± 45.87	>500
3g	46.60 ± 6.15	276.67 ± 28.87	5.94
3h	>500	>500
3i	83.59 ± 7.30	>500	>5.98
3j	>500	>500
Cisplatin	23.89 ± 2.71

^aSI = IC₅₀ for L929 cells/IC₅₀ for A549 cells.