反应详情

温度

-60 °C

A mixture cooled to −60° C. containing 4,6-dichloro-2-cyclohexylpyrimidine (505 mg, 2.19 mmol), 5-fluoro-1H-pyrazolo[3,4-b]pyridin-3-amine (400 mg, 2.63 mmol) and THF (20 mL) was treated drop wise with a 1M solution of lithium bis(trimethylsilyl)amide in THF (5.46 mL, 5.46 mmol). The reaction mixture was then allowed to warm to 0° C. over 1 h before water was added. The reaction mixture partitioned between water and EtOAc, washed with sat. NaCl solution and dried (Na2SO4) and concentrated in-vacuo. The resulting residue was purified by column chromatography (eluting with MeOH/DCM, 5/95) to give the title compound as a solid (380 mg, 50%). MS (ES+) m/e=347. 1H NMR: (DMSO) 1.10-1.96 (10H, m), 2.56-2.69 (1H, m), 7.65 (1H, brs), 8.27-8.39 (1H, m), 8.58 (1H, s), 10.72 (1H, s), 13.34 (1H, s).

1. additionwas added
2. customThe reaction mixture partitioned between water and EtOAc
3. washwashed with sat. NaCl solution
4. dry with materialdried (Na2SO4)
5. concentrationconcentrated in-vacuo
6. customThe resulting residue was purified by column chromatography (eluting with MeOH/DCM, 5/95)