¹H NMR (400 MHz, CDCl₃) δ 7.78 – 7.69 (m, 1H), 7.58 – 7.48 (m, 2H), 7.25 – 7.12 (m, 6H), 6.70 (t, J = 3.3 Hz, 1H), 5.62 (d, J = 2.0 Hz, 1H), 5.44 (d, J = 2.4 Hz, 1H). ¹³C NMR (101 MHz, CDCl₃) δ 144.00, 136.25, 135.90, 131.75, 129.76, 129.29, 128.44, 123.30, 122.14, 121.01, 120.34, 111.72, 108.56, 103.41. GC-MS (m/z): 297。