Table 3.

Cytotoxic activity of synthesized PT compounds

Compound	IC50a(μM)±SD for cancer cell lines
	PC3	A549	MCF-7	HeLa	BGC-823
5	6.75±0.57	136.1±10.1	559.6±45.5	N/Ab	N/Ab
6	5.32±0.43	996.5±80.7	373.6±23.7	17.1±0.9	9.54±0.78
8	NAb	770.1±65.6	397.5±15.8	NAb	19.3±1.66
9	NAb	892.5±46.8	565.3±22.4	NAb	NAb
10	66.3±5.56	62.9±5.69	603.5±44.5	63.1±2.8	25.9±1.49
11	8.51±0.73	194.2±10.6	32.5±2.79	105.4±11.2	12.7±0.85
12	10.8±0.08	0.89±0.07	0.33±0.04	56.7±4.9	7.64±0.19
1	19.7±1.55	16.8±2.13	87.2±8.46	19.1±2.1	2.41±0.22
Adriamycinc	0.68±0.07	0.54±0.04	1.65±0.11	1.35±0.08	1.33±0.09

^aValues are means of three experiments.

^bNA = no activity.

^cAdriamycin was used as a positive control.