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FMDS 11C-methylation reaction conditions screening.
 | |||
|---|---|---|---|
| Entry | Fluoride source | [11C]Methylation agent and solvent(s) | RCY (%) |
| 1 | TASF | [11C]CH3OTf, THF/DCM (0.5 mL/0.25 mL) | 12.7% |
| 2 | TASF | [11C]CH3I, THF/DCM (0.5 mL/0.25 mL) | 40.7% |
| 3 | CsF | [11C]CH3OTf, DMF (0.75 mL) | 26.6% |
| 4 | CsF | [11C]CH3I, DMF (0.75 mL) | 43.7 ± 16.4%, n = 3 |
