¹H NMR (400 MHz, CDCl₃) δ 7.50 (m, 4H), 7.45 (m, 1H), 7.41 – 7.32 (m, 4H), 7.26 (m, 1H), 7.20 (d, J = 12.9 Hz, 1H), 6.09 (d, J = 12.9 Hz, 1H), 5.01 (s, 2H). ¹³C NMR (101 MHz, CDCl₃) δ 147.66, 136.71, 136.21, 128.56, 128.06, 127.57, 125.74, 125.13, 106.88, 71.88. GC-MS (m/z): 210。