¹H NMR (400 MHz, CDCl₃) δ 7.79 (t, J = 1.5 Hz, 1H), 7.63 – 7.58 (m, 2H), 7.54 (dd, J = 8.8, 6.2 Hz, 1H), 7.49 – 7.41 (m, 4H), 7.40 – 7.33 (m, 2H), 7.17 – 7.04 (m, 2H). ¹³C{H} NMR (101 MHz, CDCl₃) δ 163.18 (d, J = 245.8 Hz), 143.16 (d, J = 7.7 Hz), 140.60 (d, J = 2.2 Hz), 130.27 (d, J = 8.4 Hz), 129.40, 126.55, 125.92, 122.81 (d, J = 2.8 Hz), 114.28 (d, J= 21.1 Hz), 114.09 (d, J = 22.0 Hz). m/z (GC-MS): 266。