Table 5. Sonogashira coupling reactions to prepare pyrazole-containing PAC analogues.
| |||
|---|---|---|---|
| Alkyne | Iodide | Product | Yield |
| 3 |
|
|
39% |
| 4 |
|
|
52% |
| 5 |
|
|
20% |
| |||
|---|---|---|---|
| Alkyne | Iodide | Product | Yield |
| 3 |
|
|
39% |
| 4 |
|
|
52% |
| 5 |
|
|
20% |