反应详情

To a mixture of 4-[1-(4-fluorophenyl)-6,7-dihydro-5H-pyrazolo[4,3-b]pyridin-4-yl]-3-[5-methyl-3-(trifluoromethyl)pyrazol-1-yl]-4-oxo-butanoic acid (0.029 g, 0.08 mmol) and NH3 (0.3 mL, sat. in CH2Cl2) in DMF (0.6 mL) was added HATU (0.040 g, 0.10 mmol). The mixture was stirred at rt for 30 min. It was then quenched with water. The mixture was partitioned between IPA/CHCl3 (1:2, 50 mL) and sat. NaHCO3 (30 mL). The organic layer was separated, dried over Na2SO4, concentrated in vacuo, and purified by reverse phase HPLC to afford the desired product (0.014 g, 37%). 1H NMR (400 MHz, CDCl3) δ 8.44 (s, 1H), 7.42 (dd, J=9.2, 4.6 Hz, 2H), 7.16 (dd, J=8.4, 8.0 Hz, 2H), 6.53 (s, 1H), 6.34 (s, 1H), 6.32 (s, 1H), 5.92 (m, 1H), 3.80 (m, 1H), 3.41 (m, 1H), 3.33 (m, 1H), 3.00 (m, 1H), 2.76 (m, 2H), 2.37 (s, 3H), 1.98 (m, 1H), 1.88 (m, 1H); MS: (ES) m/z calculated for C21H20F4N6O2 [M+H]+ 465.1, found 465.1.

1. customIt was then quenched with water
2. customThe mixture was partitioned between IPA/CHCl3 (1:2, 50 mL) and sat. NaHCO3 (30 mL)
3. customThe organic layer was separated
4. dry with materialdried over Na2SO4
5. concentrationconcentrated in vacuo
6. custompurified by reverse phase HPLC