反应详情

To a solution of 2-amino-N-(5-chloro-4-(piperazin-1-yl)pyridin-3-yl)-6-fluoropyrazolo[1,5-a]pyrimidine-3-carboxamide (51 mg, 0.13 mmol) (synthesized according to a procedure similar to Example 2) in THF (4 mL) was added oxetan-3-one (14.31 mg, 11.63 μL, 0.1986 mmol) and triacetoxyborohydride (Sodium Ion (1)) (56.12 mg, 0.2648 mmol), and the mixture was stirred at rt for 4 h. The reaction mixture was partitioned between an aqueous saturated solution of NaHCO3 and ethyl acetate. The organic extract was washed with brine, dried over MgSO4 and concentrated under reduced pressure. The residue was purified by fractionlynx to yield 2-amino-N-(5-chloro-4-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-3-yl)-6-fluoropyrazolo[1,5-a]pyrimidine-3-carboxamide. MS (ES+) 447.2.

1. customThe reaction mixture was partitioned between an aqueous saturated solution of NaHCO3 and ethyl acetate
2. extractionThe organic extract
3. washwas washed with brine
4. dry with materialdried over MgSO4
5. concentrationconcentrated under reduced pressure
6. customThe residue was purified by fractionlynx