¹H NMR (400 MHz, CDCl₃) δ 7.14 (dd, J = 20.2, 7.7 Hz, 4H), 5.04 (t, J = 4.8 Hz, 1H), 4.04 – 3.89 (m, 2H), 3.88 – 3.79 (m, 2H), 2.93 (d, J = 4.8 Hz, 2H), 2.32 (s, 3H). ¹³C NMR (101 MHz, CDCl₃) δ 136.09, 133.02, 129.47, 129.04, 104.81, 64.94, 40.32, 21.03. GC-MS (m/z): 178。