反应详情

温度

210 °C

To a solution of 2-amino-3,5-dibromopyrazine 106 (0.2 g, 0.79 mmol.) and (S)-1-Boc-2-benzylpiperazine 107 (0.44 g, 1.59 mmol) in dioxane (2 mL) and trifluoromethylbenzene (2 mL) was added diisopropylethylamine (0.31 g, 2.4 mmol). The reaction mixture was heated in a microwave reactor at 210° C. for 20 minutes. Ethyl acetate (100 mL) was added. The organic layer was washed with water and brine. The organic layer was dried over sodium sulfate. The organic solvent was evaporated under reduced pressure. The crude product was purified by RP-HPLC to yield the desired 2-amino-5-bromo-3-[(S)-4-Boc-3-benzylpiperazinyl]pyrazine 108 (0.24 g, 0.536 mmol).

1. washThe organic layer was washed with water and brine
2. dry with materialThe organic layer was dried over sodium sulfate
3. customThe organic solvent was evaporated under reduced pressure
4. customThe crude product was purified by RP-HPLC