Table 4.

IR% values of 1–5 on human cancer cell lines at the 100 μg/mL ^a.

Compound	K562	HL-60	HeLa	BGC-823
1	73.7%	70.0%	68.8%	66.0%
2	60.1%	79.4%	51.9%	67.1%
3	77.5%	82.0%	84.1%	79.9%
4	33.1%	43.3%	38.0%	27.5%
5	87.5%	86.5%	88.5%	86.4%

^a The cells were treated with the samples at 37 °C for 24 h and then the IR% was measured by the MTT method.