(3-tert-butyl-1-(3,4-difluorophenyl)-1H-pyrazol-5-yl)methanamine hydrochloride → 1-((3-tert-butyl-1-(3,4-difluorophenyl)-1H-pyrazol-5-yl)methyl)-3-(3-fluoro-4-(3-hydroxyazetidin-1-yl)phenyl)urea

Participants

Reaction Steps

To a stirred solution of (3-tert-butyl-1-(3,4-difluorophenyl)-1H-pyrazol-5-yl)methanamine hydrochloride (85 mg, 0.282 mmol, 1.0 eq) in acetonitrile (6.7 mL) was added TEA (0.16 mL, 1.1 mmol, 4.0 eq) followed by phenyl 3-fluoro-4-(3-hydroxyazetidin-1-yl)phenylcarbamate (86 mg, 0.287 mmol, 1.02 eq) and stirred at reflux for 16 h. The solvent of the reaction mixture was evaporated and the residue was purified by column chromatography (EtOAc/cyclohexane (1:2) as eluent) to get 1-((3-tert-butyl-1-(3,4-difluorophenyl)-1H-pyrazol-5-yl)methyl)-3-(3-fluoro-4-(3-hydroxyazetidin-1-yl)phenyl)urea (62 mg, 46%).

Provenance & Evidence