Table 2. Binding Affinities and Selectivities for Hsp90α > Hsp90β Obtained by FP Assay.
| IC50 (μM)a |
|||
|---|---|---|---|
| compd | Hsp90α | Hsp90β | fold selectivity |
| 11 | 37.87 ± 1.24 | >50 | >1 |
| 14 | 6.15 ± 0.76 | >50 | >8 |
| 16 | 0.478 ± 0.010 | 5.23 ± 0.02 | ∼11 |
| 18 | 36.00 ± 1.56 | >50 | >1 |
IC50 values are reported as the mean of triplicates ± SD.