Table 1. In vitro radiolabeling results of [125I] 7 and [125I] 8.
| entrya | concentrationb (μmol) | substrate | time (min) | product | % RCYc |
|---|---|---|---|---|---|
| 1 | 50 | 4 | 5 | [125I] 7 | 26 |
| 2 | 50 | 4 | 30 | [125I] 7 | >99 |
| 3 | 25 | 4 | 30 | [125I] 7 | 91 |
| 4 | 5 | 4 | 30 | [125I] 7 | 80 |
| 5 | 50 | 8 | 30 | [125I] 8 | >99 |
| 6 | 25 | 8 | 30 | [125I] 8 | 93 |
| 7 | 5 | 8 | 30 | [125I] 8 | 69 |
Solvent: DMSO/PBS, Cu2+ (0.1 equiv), 25 °C.
Final concentration in the reaction mixture.
Radiochemical yield determined by radio-HPLC.