反应详情

温度

80 °C

A mixture of 3-[3-(4,5-dihydro-1H-imidazol-2-yl)pyrazolo[3,4-b]pyridin-1-yl]-1-[1-(4-fluorophenyl)-5-isopropylpyrazol-4-yl]pyrrolidin-2-one (0.085 g, 0.18 mmol) and Dess-Martin periodinane (0.153 g, 0.36 mmol) in DMSO (2.5 mL) was stirred at 80° C. for 1 hr. It was then cooled to room temperature, quenched with sat. aq. NaHCO3 (50 mL), and extracted with EtOAc (50 mL). The organic layer was separated, dried over anhydrous sodium sulfate, concentrated in vacuo and purified by flash chromatography (SiO2, 0˜7% MeOH/EtOAc gradient elution) to give the title compound (0.070 g, 82%). 1H NMR (400 MHz, CDCl3) δ 10.42 (s, 1H, br), 8.74 (dd, J=8.4, 1.6 Hz, 1H), 8.54 (dd, J=4.8, 1.6 Hz, 1H), 7.64 (s, 1H), 7.40 (dd, J=6.8, 4.6 Hz, 2H), 7.23 (m, 1H), 7.18 (dd, J=8.6 Hz, 2H), 6.94 (s, 1H, br), 5.94 (dd, J=9.2, 9.2 Hz, 1H), 3.94 (m, 3H), 3.07 (heptet, J=6.8, 1H), 2.75-2.95 (m, 2H), 1.33 (d, J=7.6 Hz, 3H), 1.28 (d, J=7.2 Hz, 3H); MS: (ES) m/z calculated for C25H23FN8O [M+H]+471.2. found 471.2.

1. temperatureIt was then cooled to room temperature
2. customquenched with sat. aq. NaHCO3 (50 mL)
3. extractionextracted with EtOAc (50 mL)
4. customThe organic layer was separated
5. dry with materialdried over anhydrous sodium sulfate
6. concentrationconcentrated in vacuo
7. custompurified by flash chromatography (SiO2, 0˜7% MeOH/EtOAc gradient elution)