Ethyl Acetate → HCID 59577353, compound

Participants

Reaction Conditions

Reaction Steps

ethyl 4-{[2-{[5-(3,5-difluorobenzyl)-1H-indazol-3-yl]carbamoyl}-5-(4-methylpiperazin-1-yl)phenyl]amino}piperidine-1-carboxylate (198 mg, 0.313 mmol) were dissolved in 62% aqueous HBr (4 mL) in a screw cap pirex tube and stirred at 70° C. for 1 hour. The mixture was then diluted with water and 30% ammonium hydroxide and extracted with ethyl acetate. The organic phase was dried over Na2SO4 and concentrated to dryness. After purification by chromatography on silica gel (DCM/MeOH/NH3 7% in MeOH, 80:10:10) 127 mg of pure product were obtained (72% yield). The product was slurried with ethyl acetate, filtered, washed with n-hexane and dried at 45° C. under high vacuum for 3 hours to give 88 mg of title compound as white solid.

Provenance & Evidence