¹H NMR (400 MHz, CDCl₃) δ 7.12 (d, J = 7.6 Hz, 1H), 7.07 – 6.94 (m, 2H), 5.04 (t, J = 4.8 Hz, 1H), 4.03 – 3.90 (m, 2H), 3.89 – 3.76 (m, 2H), 2.96 (d, J = 4.9 Hz, 2H), 2.32 (s, 3H), 2.29 (s, 3H). ¹³C NMR (101 MHz, CDCl₃) δ 136.56, 136.19, 131.43, 131.00, 130.25, 126.55, 104.49, 64.90, 37.41, 20.93, 19.73. GC-MS (m/z): 192。