Methanol → HCID 58095110, compound

Participants

Reaction Steps

To a mixture of 2-(2-aminopyridin-4-yl)-4-(2,4-dichlorophenyl)-5-(1H-pyrazol-5-yl)thiophene-3-carbonitrile (0.10 g, 0.12 mmol) and Pyridine (0.3923 mL, 4.851 mmol) in DCM (0.2 mL, 3 mmol) was added Acetic anhydride (0.114 mL, 1.21 mmol) at 0° C. The ice bath was removed after 2 h and stirring was continued at rt overnight. The solvent was evaporated and the residue was stirred in MeOH (5 mL, 100 mmol) and Water (1 g, 60 mmol) containing Sodium bicarbonate (0.6112 g, 7.276 mmol). The mixture was concentrated and the residue was collected with EtOAc. The mixture was washed with brine and dried. The solvent was evaporated and the residue was purified by column chromatography to afford the title compound (0.024 g, 41%). LC/MS (FA) ES+ 454, 456. 1H NMR (400 MHz, DMSO-d6) δ: 13.28 (1H, s), 10.78 (1H, s), 8.58 (1H, s), 8.50 (1H, dd, J=5.27, 0.63 Hz), 7.93 (1H, d, J=1.71 Hz), 7.71 (1H, d, J=2.37 Hz), 7.63 (2H, dd, J=5.25, 1.77 Hz), 7.53 (1H, dd, J=5.25, 1.77 Hz), 5.49 (1H, d, J=2.38 Hz), 2.13 (3H, s)

Provenance & Evidence