Table 9. IC50 Values (μM) Calculated for the Ligand Precursors and Corresponding Vanadium Complexes Against the HT-29, HeLa, and NIH-3T3 Cells Upon 48 h of Exposurea.
| complex | HT-29 | selectivity index (SI) | HeLa | selectivity index (SI) | NIH-3T3 |
|---|---|---|---|---|---|
| H2L1 | 14.7 ± 0.6 | 1.6 | 15.7 ± 1.9 | 1.5 | 23.5 ± 0.6 |
| 1 | 7.2 ± 0.6 | 1.2 | 9.3 ± 0.2 | 0.9 | 8.7 ± 1.1 |
| H2L2 | 17.9 ± 0.8 | 1.3 | 16.5 ± 1.4 | 1.4 | 23.1 ± 2.3 |
| 2 | 6.1 ± 2.0 | 2.2 | 8.2 ± 0.2 | 1.6 | 13.3 ± 1.3 |
| H2L3 | 12.6 ± 2.1 | >4 | 6.3 ± 0.1 | >8 | >50 |
| 3 | 16.2 ± 0.4 | 0.6 | 11.1 ± 0.9 | 0.9 | 10.3 ± 2.2 |
| H2L4 | 13.1 ± 3.2 | 3.7 | 7.5 ± 0.3 | 6.6 | 49.2 ± 1.6 |
| 4 | 18.7 ± 1.6 | 0.6 | 17.1 ± 0.1 | 0.7 | 11.4 ± 3.1 |
| cisplatinb | 32.7 ± 0.6 | 25.5 ± 0.8 |