Table 5.
Synthesis of N,Ndiethyl-2-(2-(4-(2-fluoroethoxy)phenyl)-5,7-dimethylpyrazolo[l,5-a]pyrimidin-3-yl)acetamide (7, DPA-714).
Entry | MAOS | Reaction Conditions | Temperature | Time | Yielda |
---|---|---|---|---|---|
16c | No | NaH, THF | RT | 16 h | 80% |
26d | No | NaH, THF | RT | 16 h | 58% |
3 | Yes | NaH, THF | 120 °C | 15 min | 79% |
Isolated yield. See reference.6c,6d