Sodium hydride → 6-[2-(2-Chloro-6-fluorophenyl)-2H-pyrazolo[4,3-c]pyridin-4-ylamino]isonicotinonitrile

Participants

Reaction Steps

Sodium hydride (12 mg, 0.30 mmol) was added to a solution of 2-amino-4-cyanopyridine (36 mg, 0.30 mmol) in DMF (2 mL) in a microwave vial and stirred for 5 minutes. 4-Chloro-2-(2-chloro-6-fluorophenyl)-2H-pyrazolo[4,3-c]pyridine (76 mg, 0.27 mmol) was added and then the vial was sealed, purged with nitrogen and irradiated at 150° C. for 10 minutes in the microwave. The reaction mixture was cooled and partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography (50% ethyl acetate in cyclohexane) to afford the title compound as a yellow solid (10 mg, 10% yield). 1H NMR (400 MHz, DMSO-d6): δ 9.61 (s, 1H), 8.77 (dd, J=5.2, 0.9 Hz, 1H), 7.99 (d, J=7.3 Hz, 1H), 7.85 (s, 1H), 7.81-7.80 (m, 2H), 7.73 (d, J=8.2 Hz, 1H), 7.67 (t, J=9.0 Hz, 1H), 7.58 (dd, J=7.3, 0.9 Hz, 1H). LCMS (Method B): RT=2.98 min, m/z: 365 [M+H+].

Provenance & Evidence