1H NMR (400 MHz, CDCl3) δ 7.66 – 7.62 (m, 1H), 7.49 – 7.44 (dd, J = 13.3, 7.2 Hz, 1H), 7.28 – 7.24 (m, 1H), 7.14 – 7.08 (dd, J = 15.0, 7.5 Hz, 3H), 6.98 (m, 1H), 6.90 (d, J = 7.8 Hz, 1H), 3.78 – 3.61 (m, 2H), 3.31 (s, 3H), 1.41 (s, 3H); 13C NMR (100 MHz, CDCl3) δ: 25.0, 26.4, 45.3, 50.8, 50.8, 108.0, 116.4, 116.6, 121.5, 122.0, 124.3, 124.7, 127.7, 130.6, 134.7, 133.7, 143.8, 161.9 (d, 1JC-F = 253.0 Hz), 180.5, 194.1; HRMS (EI) m/z calcd for C18H16FNO2 [M+]: 297.1165; found 297.1159.