¹H NMR (400 MHz, CDCl₃) δ 8.11 (d, J = 8.3 Hz, 1H), 7.98 – 7.84 (m, 2H), 7.76 (t, J = 1.5 Hz, 1H), 7.64 (dt, J = 7.7, 1.4 Hz, 1H), 7.61 – 7.42 (m, 7H), 7.34 (dtd, J = 9.4, 7.8, 1.7 Hz, 1H), 7.06 (ddd, J = 14.8, 10.7, 4.5 Hz, 2H), 3.87 (s, 3H).¹³C{H} NMR (101 MHz, CDCl₃) δ 156.50, 140.31, 140.21, 138.33, 133.83, 131.63, 131.43, 130.91, 130.41, 128.70, 128.58, 128.34, 128.22, 128.00, 127.55, 127.00, 126.22, 125.94, 125.70, 125.40, 120.85, 111.20. m/z (GC-MS): 310。