Compound

Hep-G2

IC50 (µg/mL)

MCF-7

IC50 (µg/mL)

IC50/24hr

IC50/48hr

IC50/72hr

IC50/24hr

IC50/48hr

IC50/72hr

2a

50.2

92.8

51.1

80.2

35.9

20.9

2b

54.6

63.6

39.2

71.3

42.4

21.5

2c

32.4

25.1

10.7

34.5

28.4

19.9

4a

12.8

19.6

8.3

14.9

18.7

11.1

4b

10.7

15.4

6.7

13.1

16.4

9.7

5-flurouracil

11.5

19.5

11.2

12.1

21.6

11.6