反应详情

To a solution of 4-(3-amino-6-(tetrahydro-2H-pyran-4-yl)pyrazin-2-yl)-2-fluorobenzoic acid (126 mg, 0.398 mmol) in DMF (1328 μl) was added (S)-2-azido-1-(3-chloro-5-fluorophenyl)ethanamine (100.0 mg, 0.398 mmol), DIEA (348 μl, 1.991 mmol), EDC (153 mg, 0.797 mmol), and aza-HOBt (81 mg, 0.597 mmol). The reaction mixture was stirred for 15 h. After water was added, the reaction mixture was worked up with EtOAc. The organic layer was dried over Na2SO4, filtered off, and concentrated in vacuo. The crude product was purified by flash chromatography (gradient EtOAc in heptane) to provide (S)-4-(3-amino-6-(tetrahydro-2H-pyran-4-yl)pyrazin-2-yl)-N-(2-azido-1-(3-chloro-5-fluorophenyl)ethyl)-2-fluorobenzamide (118 mg, 58%). LCMS (m/z): 514.2 (MH+), 0.91 min.

1. dry with materialThe organic layer was dried over Na2SO4
2. filtrationfiltered off
3. concentrationconcentrated in vacuo
4. customThe crude product was purified by flash chromatography (gradient EtOAc in heptane)