反应详情

温度

22 °C

To an ice-water cooled solution of 1-(5-tert-butyl-2-methyl-2H-pyrazol-3-yl)-3-{3-fluoro-5-(piperidin-4-yloxy)-phenyl}-urea (390.6 mg, 1.0 mmol) and triethylamine (280 μL, mmol) in dichloromethane (5 mL) is added trichloroacetyl chloride (115 μL, 1.0 mmol). The reaction mixture is allowed to warm up to 22° C. and stirred for 1 hour. After removal of solvent, the residue is purified on a silica gel chromatography with hexanes and ethyl acetate to provide a white solid (520.0 mg, 97% yield, ES+(m/z) 535.9 [M+H]).

1. customAfter removal of solvent
2. customthe residue is purified on a silica gel chromatography with hexanes and ethyl acetate
3. customto provide a white solid (520.0 mg, 97% yield, ES+(m/z) 535.9 [M+H])