Table 5.
RCYs of [18F]18 under various conditions.
| Solvent | Base | T (ºC) | Time (min) | RCY a (%) |
|---|---|---|---|---|
| MeCN | 0.5M NaOH | 80 | 5 | 1 |
| DMF | K2CO3, 18-crown-6 | 110 | 10 | 7 |
| MeCN | 0.5M NaOH | 100 | 15 | 13 |
Overall from starting [11C]fluoride ion.
RCYs of [18F]18 under various conditions.
| Solvent | Base | T (ºC) | Time (min) | RCY a (%) |
|---|---|---|---|---|
| MeCN | 0.5M NaOH | 80 | 5 | 1 |
| DMF | K2CO3, 18-crown-6 | 110 | 10 | 7 |
| MeCN | 0.5M NaOH | 100 | 15 | 13 |
Overall from starting [11C]fluoride ion.