The proton NMR data for tazofelone and its quinol metabolite in CD3CN at ambient temperature
| Position | Chemical Shift | |
|---|---|---|
| Tazofelone | Quinol | |
| 5 | 3.96 | 3.46 |
| 2 | 4.23/4.02 | 4.18/4.08 |
| 3 | 6.61 | 6.58 |
| 6 | 3.32/2.88 | 2.60/1.83 |
| 8/12 | 7.16 | 6.54/6.53 |
| t-Butyl | 7.16 | 1.211/1.209 |
| Phenol | 5.43 | 4.73 |