¹H NMR (400 MHz, CDCl₃) δ 8.70 – 8.45 (m, 2H), 7.83 (d, J = 7.7 Hz, 1H), 7.69 (d, J = 7.5 Hz, 1H), 7.62 (t, J = 7.8 Hz, 1H), 7.58 – 7.49 (m, 3H), 7.42 (s, 1H), 7.29 – 7.23 (m, 3H), 6.92 (d, J = 6.7 Hz, 2H), 5.72 (s, 2H). ¹³C{¹H} NMR (101 MHz, CDCl₃) δ 182.5, 143.5, 138.0, 138.0, 136.9, 134.2, 132.6, 131.5 (d, J = 33.0 Hz), 130.7 (d, J = 32.9 Hz), 130.2, 129.5, 129.3, 129.1 (dd, J = 6.9, 3.3 Hz), 128.9, 128.6, 127.8, 127.7, 126.4 (dd, J = 7.7, 3.8 Hz), 126.0 (dd, J = 7.4, 3.8 Hz), 125.9, 125.0 (d, J = 27.4 Hz), 122.3 (d, J = 27.4 Hz), 49.6. HRMS (EI) m/z: calcd for C₂₅H₁₆F₆N₂O, 474.1167; found, 474.1164.