反应详情

3-Cyclopropyl-1H-pyrazolo[3,4-b]pyridin-5-amine (0.0744 g, 0.427 mmol), 2-chloro-6-fluoro-3-(propylsulfonamido)benzoic acid (0.139 g, 0.470 mmol), EDCI (0.0901 g, 0.470 mmol), and HOBt (0.0635 g, 0.470 mmol) were dissolved in DMF (2 mL) and stirred for 24 hours. The reaction mixture was diluted with ethyl acetate and washed with water (4 X), saturated aqueous sodium bicarbonate solution (2×), and brine, dried over sodium sulfate and concentrated. The crude product was triturated with 1:1 DCM/Et2O to afford 2-chloro-N-(3-cyclopropyl-1H-pyrazolo[3,4-b]pyridin-5-yl)-6-fluoro-3-(propylsulfonamido)benzamide (128 mg, 66% yield) as a solid. 1H NMR (400 MHz, d6-DMSO) 813.21 (s, 1H), 11.08 (s, 1H), 9.74 (s, 1H), 8.66 (s, 1H), 8.55 (s, 1H), 7.59-7.63 (m, 1H), 7.40-7.46 (m, 1H), 3.11-3.15 (m, 2H), 2.29-2.31 (m, 1H), 1.79-1.80 (m, 2H), 0.95-1.00 (m, 7H); MS (APCI-neg) m/z=452.2, 454.1 (M+H).

1. washwashed with water (4 X), saturated aqueous sodium bicarbonate solution (2×), and brine
2. dry with materialdried over sodium sulfate
3. concentrationconcentrated
4. customThe crude product was triturated with 1:1 DCM/Et2O