1H NMR (400 MHz, CDCl3) δ 8.27 (d, J = 7.4 Hz, 2H), 7.59 (t, J = 7.3 Hz, 1H), 7.54 – 7.44 (m, 7H), 7.30 (s, 1H), 4.02 (s, 3H). 13C{1H} NMR (101 MHz, CDCl3) δ 184.4, 144.0, 139.1, 137.6, 132.6, 130.7, 129.3, 129.0, 128.9, 128.6, 128.1, 34.5. HRMS (EI) m/z: calcd for C17H14N2O, 262.1106; found, 262.1107.