Table 1: Screening data for compounds 7-12.

Cmpd	R & R1	CC50 (µM)
		HT29	PC3	MDA-MB-231
SSA		0.65±0.03	3.12±0.15	2.67±0.08
7	R1 = SCH3, R = benzyl	21.83±2.29	>50.00	46.51±1.92
8	R1 = SCH3, R = furan-2-ylmethyl	4.27±0.33	9.94±0.77	7.77±0.54
9	R1 = SCH3, R = 1-pipyridinylethyl	1.81±0.06	4.78±0.20	3.73±0.21
10	R1 = SCH3, R = CH2CH2N(CH3)2	1.97±0.18	4.38±0.25	3.42±1.50
11	R1 = SOCH3, R = benzyl	15.14±1.42	41.46±5.00	48.57±7.85
12	R1 = SO2CH3, R = benzyl	3.39±0.28	7.02±0.48	4.52±0.77