Table 4.
BCL-XL Degraders Designed with Various Linkers Tethering through an N-Methylamino Group to Pomalidomide
|  | |||||
|---|---|---|---|---|---|
| Compd | Linker | IC50 (nM)a | Compd | Linker | IC50 (nM)a | 
| 13a |  | 770 | 16b |  | 38.7 | 
| 13b |  | 769 | 16c |  | 60.9 | 
| 14a |  | 177 | 16d |  | 147 | 
| 14b |  | 179 | 16e |  | >2000 | 
| 15a |  | 29.2 | 17a |  | 35.0 | 
| 15b |  | 35.0 | 17b (XZ739) |  | 10.1 | 
| 16a |  | 32.5 | 17c |  | 19.3 | 
IC50 values are the means of at least three independent experiments; reduction of MOLT-4 cell viability after 48 h treatment.