Hydrochloric Acid → HCID 70829816, compound

Participants

Reaction Steps

1H-pyrrolo[2,3-b]pyridine-5-carbonitrile (13, 301 mg, 2.10 mmol), propane-1-sulfonic acid (2,4-difluoro-3-formyl-phenyl)-amide (12, 1.11 g, 4.20 mmol) and potassium hydroxide (354 mg, 6.31 mmol) were combined in a vial with 4.2 mL of methanol. The reaction was stirred for 3 hours at room temperature. The reaction solution was neutralized with 0.1 N aqueous hydrochloric acid and extracted 3× with ethyl acetate. The organic layers were combined and washed with brine, then dried over sodium sulfate, filtered and the filtrate concentrated under vacuum. This was allowed to stir over the weekend at room temperature, then extracted with ethyl acetate and water. The organic layer was washed with brine and then dried over magnesium sulfate, filtered, and the solvents were removed from the filtrate under vacuum. The resulting material was purified by silica gel column chromatography eluting with ethyl acetate in hexanes to provide the desired compound (14, 315 mg). MS(ESI) [M−H+]−=405.3.

Provenance & Evidence