Table 3. IC50 values for the inhibition of TSPO WT and TSPO A147T over-expressing 293T cell proliferation.
| Compound | TSPO WT IC50 (μM) | TSPO A147T IC50 (μM) | TSPO A147T IC50/TSPO WT IC50 |
| PK 11195 | >100 | >100 | n/a |
| DPA-713 | >100 | >100 | n/a |
| XBD-173 | >100 | >100 | n/a |
| 3b | >100 | >100 | n/a |
| 5a | 50.5 ± 5.0 | 47.1 ± 1.2 | 0.9 |