Table 3.
Activities of compounds 9, 12, 13 and 16 in a βIII-tubulin overexpressing cell line.
| Agent | MCF-7 WT EC50 (nM) | MCF-7 TUBB3 βIII-tubuliu EC50 (nM) | Resistance Ratio MCF-7 TUBB3/WT |
|---|---|---|---|
| 9 | 2.0 ± 0.3 | 3.3 ± 0.4 | 1.1 |
| 12 | 35.2 ± 4.7 | 16.8 ±1.5 | 0.5 |
| 13 | 7.7 ±0.7 | 9.7 ±1.0 | 1.3 |
| 16 | 1.7 ±0.2 | 2.6 ±0.4 | 1.6 |
| Paclitaxel | 194.2 | 2065.8 | 10.6 |