¹H NMR (400 MHz, CDCl₃) δ 7.75 (d, J = 1.5 Hz, 1H), 7.62 – 7.48 (m, 3H), 7.45 – 7.32 (m, 5H), 7.11 – 7.00 (m, 3H), 3.85 (s, 3H). ¹³C{H} NMR (101 MHz, CDCl₃) δ 163.16 (d, J = 245.4 Hz), 156.46, 143.65 (d, J = 7.7 Hz), 139.66 (d, J = 2.1 Hz), 139.16, 130.86, 130.34, 130.13 (d, J = 8.4 Hz), 129.07, 128.86, 128.49, 128.38, 125.66, 122.85 (d, J = 2.8 Hz), 120.88, 114.09 (d, J = 21.9 Hz), 113.94 (d, J = 21.2 Hz), 111.24, 55.58. m/z (GC-MS): 278。