反应详情

To a solution of 6-{7-amino-4-[1-(trans-4-{[tert-butyl(dimethyl)silyl]oxy}cyclohexyl)-1H-pyrazol-4-yl]furo[2,3-c]pyridin-2-yl}-2,3-dihydro-1H-isoindol-1-one in THF (2.4 mL) was added tetra-n-butylammonium fluoride (1.0 M in THF, 2.4 mL, 2.4 mmol). After 4 h, the reaction was diluted into EtOAc and washed with sodium bicarbonate and water. The aqueous layer was concentrated. The residual solid was rinsed with MeOH and EtOAc thoroughly, then purified by ISCO chromatography (0 to 10% 7 N NH3/MeOH:EtOAc) to afford 1.5 mg (3%) of the title compound. 1H NMR (400 MHz, CD3OD): δ 8.44 (s, 1H), 8.34 (d, J=7.8 Hz, 1H), 8.16 (s, 1H), 7.92 (d, J=5.3 Hz, 2 H), 7.76 (d, J=8.1 Hz, 1H), 7.63 (s, 1H), 4.56-4.58 (m, 2H), 4.23-4.34 (m, 1H), 3.67-3.78 (m, 1H), 2.11-2.25 (m, 4H), 1.97-2.08 (m, 2H), 1.54 (m, 2H); MS (ESI): 430.17 [M+H]+; HPLC tR=0.90 min (TOF: polar—3 min).

1. washwashed with sodium bicarbonate and water
2. concentrationThe aqueous layer was concentrated
3. washThe residual solid was rinsed with MeOH and EtOAc thoroughly
4. custompurified by ISCO chromatography (0 to 10% 7 N NH3/MeOH:EtOAc)