Table 1.
Use of Varying the Solvent for the Radiolabeling of Tosylate 8 (n = 3)
 | |||
|---|---|---|---|
| entry | solvent | % rcy (isolated) | % rcp (HPLC) |
| 1 | DMSO | 32 (± 2) | 84 (± 15) |
| 2 | DMF | 14 (± 6) | 78 (± 11) |
| 3 | t-BuOH | 7 (± 2) | 53 (± 12) |
| 4 | ACN | 35 (± 2) | 91 (± 4) |
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