Diisopropylethylamine → N-(4-(2-(benzyloxy)ethoxy)-3-(trifluoromethyl)phenyl)-2-(4-bromo-2,3-difluorophenyl)acetamide

Participants

Reaction Conditions

Reaction Steps

To a solution of 4-(2-(benzyloxy)ethoxy)-3-(trifluoromethyl)aniline (20 mg, 0.064 mmol), 2-(4-bromo-2,3-difluorophenyl)acetic acid (48.4 mg, 0.077 mmol) and DIEA (0.034 mL, 0.193 mmol) in DCM (3 mL) stirred under a N2 atmosphere at 20° C. was added HATU (29.3 mg, 0.077 mmol) in one charge. The reaction mixture was stirred at 20° C. for 2 h. Then the solution was distributed between DCM and saturated NaHCO3 solution. The combined organic extract was washed with brine, dried over Na2SO4, filtered and concentrated. The crude material was purified by preparative TLC (PE/EA=5:1, Rf 0.3) to yield a light yellow solid of N-(4-(2-(benzyloxy)ethoxy)-3-(trifluoromethyl)phenyl)-2-(4-bromo-2,3-difluorophenyl)acetamide (12 mg, 0.019 mmol, 29.9% yield): 1H NMR (400 MHz, CDCl3) δ 7.69-7.59 (m, 2H), 7.36-7.24 (m, 6H), 7.05 (t, J=7.3 Hz, 1H), 6.96 (d, J=8.4 Hz, 1H), 4.64 (s, 2H), 4.20 (t, J=4.4 Hz, 2H), 3.86 (t, J=4.8 Hz, 2H), 3.71 (s, 2H); ES-LCMS m/z 546.0 (M+H).

Provenance & Evidence