¹H NMR (400 MHz, CDCl₃) δ 7.76 (s, 1H), 7.40 – 7.31 (m, 3H), 7.25 (d, J = 7.2 Hz, 2H), 7.16 (d, J = 10.0 Hz, 2H), 6.95 (d, J = 8.8 Hz, 1H), 6.54 (s, 1H), 5.59 (s, 1H), 5.34 (s, 1H). ¹³C NMR (101 MHz, CDCl₃) δ 144.69, 136.56, 135.05, 130.91, 129.81, 129.34, 128.66, 126.81, 124.85, 123.39, 113.46, 113.27, 108.57, 102.57. GC-MS (m/z): 297。