1-Hydroxybenzotriazole → N-((3-tert-butyl-1-(3-(trifluoromethoxy)phenyl)-1H-pyrazol-5-yl)methyl)-2-(3-fluoro-4-((2-hydroxyethoxy)methyl)phenyl)propanamide

Participants

Reaction Steps

To a stirred solution of (3-tert-butyl-1-(3-(trifluoromethoxy)phenyl)-1H-pyrazol-5-yl)methanamine hydrochloride (119 mg, 0.351 mmol, 1 eq) in THF/DMF (1/20, v/v, 3 mL) was added 2-(3-fluoro-4-((2-hydroxyethoxy)methyl)phenyl)propanoic acid (84 mg, 0.35 mmol, 1 equiv.), HOBt (49 mg. 0.35 mmol, 1 equiv.), TBTU (112 mg, 0.351 mmo, 1 equiv.) and DIPEA (0.234 mL, 178 mg, 1.40 mmol, 4 equiv.) and the mixture was stirred for at room temperature overnight. The reaction mixture was evaporated and the residue was purified by column chromatography (EtOAc/cyclohexane (1:2) as eluent) to give N-((3-tert-butyl-1-(3-(trifluoromethoxy)phenyl)-1H-pyrazol-5-yl)methyl)-2-(3-fluoro-4-((2-hydroxyethoxy)methyl)phenyl)propanamide (137 mg, 73%).

Provenance & Evidence