1H NMR (400 MHz, CDCl3) δ 8.58 (d, J = 7.7 Hz, 2H), 7.76 (d, J = 7.6 Hz, 2H), 7.65 (t, J = 7.1 Hz, 1H), 7.54 (t, J = 7.7 Hz, 2H), 7.48 (t, J = 7.2 Hz, 2H), 7.38 (t, J = 7.4 Hz, 1H), 2.70 (s, 3H). 13C{1H} NMR (101 MHz, CDCl3) δ 178.65, 155.59, 147.99, 137.27, 135.21, 133.75, 130.99, 128.75, 128.41, 128.06, 126.95, 125.86, 12.35. HRMS (ESI) (M+H)+Calcd. for C17H14NO2: 264.1021, Found: 264.1017.
