反应详情

温度

110 °C

A mixture of 6-chloro-1H-pyrazolo[4,3-c]pyridine (2.0 mmol; 307 mg), tert-butyl 4-(6-bromopyrazin-2-yl)-1,4-diazepane-1-carboxylate (2.199 mmol; 785.5 mg), N,N′-Dimethylethylenediamine (4.0 mmol; 352.4 mg; 0.398 mL), cuprous iodide (2.0 mmol; 380.72 mg), and potassium carbonate (2.1990 mmol; 307 mg) in 1,4-Dioxane (15 mL) was purged with Argon, then sealed and stirred at 110° C. overnight. The mixture was cooled to room temperature, then filtered through Celite. The filtrate was concentrated; the residue was purified on silica eluted with 0 to 100% EtOAc in Heptane to afford tert-butyl 4-[6-(6-chloropyrazolo[4,3-c]pyridin-1-yl)pyrazin-2-yl]-1,4-diazepane-1-carboxylate as an off-white solid (217.2 mg, 25%). MS (ESI) m/z: δ 430 [M+H]+

1. customwas purged with Argon
2. customsealed
3. temperatureThe mixture was cooled to room temperature
4. filtrationfiltered through Celite
5. concentrationThe filtrate was concentrated
6. customthe residue was purified on silica
7. washeluted with 0 to 100% EtOAc in Heptane