(3-tert-butyl-1-(3-chlorophenyl)-1H-pyrazol-5-yl)methanamine hydrochloride → 1-((3-tert-butyl-1-(3-chlorophenyl)-1H-pyrazol-5-yl)methyl)-3-(3-fluoro-4-(3-hydroxyoxetan-3-yl)phenyl)urea

Participants

Reaction Steps

To a stirred solution of (3-tert-butyl-1-(3-chlorophenyl)-1H-pyrazol-5-yl)methanamine hydrochloride (96 mg, 0.32 mmol, 1.0 eq) in MeCN (8 mL) was added TEA (0.178 mL, 1.28 mmol, 4.0 eq) followed by phenyl 3-fluoro-4-(3-hydroxyoxetan-3-yl)phenylcarbamate (99 mg, 0.3 3 mmol, 1.02 eq) at RT and stirred at reflux for 16 h. The solvent was evaporated and the crude product was purified by CC (EtOAc/cyclohexane 1:1 as eluent) to get 1-((3-tert-butyl-1-(3-chlorophenyl)-1H-pyrazol-5-yl)methyl)-3-(3-fluoro-4-(3-hydroxyoxetan-3-yl)phenyl)urea (116 mg; 77%).

Provenance & Evidence