Phosphorus oxychloride → HCID 68328277, compound

Participants

Reaction Steps

To a solution of 4-fluoro-3-(5-(5-(isopropylamino)-1,3,4-oxadiazol-2-yl)-1-tosyl-1H-indol-3-yl)benzoic acid (500 mg, 0.936 mmol) and methylamine hydrochloride (97 mg, 1.40 mmol) in pyridine (10 mL) was added POCl3 (0.13 mL, 1.40 mmol). The reaction was stirred at RT for 1 h, then quenched with ice cold water (20 mL) to get a precipitate. The precipitate was filtered, washed with water (2×100 mL) and dried. The crude product was purified with basic alumina chromatography (eluting with EtOAc) to give 4-fluoro-3-(5-(5-(isopropylamino)-1,3,4-oxadiazol-2-yl)-1-tosyl-1H-indol-3-yl)-N-methylbenzamide (250 mg, 48%). MS (ESI, pos. ion) m/z: 548.2 (M+1).

Provenance & Evidence