¹H NMR (400 MHz, CDCl₃) δ 7.33 (s, 1H), 6.30 (s, 1H), 6.12 (s, 1H), 4.79 (t, J = 5.1 Hz, 1H), 4.12 (dd, J = 11.4, 4.5 Hz, 2H), 3.77 (t, J = 12.0 Hz, 2H), 2.94 (d, J = 5.1 Hz, 2H), 2.26 – 1.97 (m, 1H), 1.34 (d, J = 13.4 Hz, 1H). ¹³C NMR (101 MHz, CDCl₃) δ 150.70, 141.40, 110.27, 107.06, 100.36, 66.97, 34.54, 25.58. GC-MS (m/z): 168。