¹H NMR (400 MHz, CDCl₃) δ 7.28 (dd, J = 14.2, 7.7 Hz, 1H), 7.05 (dd, J = 15.5, 8.8 Hz, 2H), 6.96 (dd, J = 11.8, 5.2 Hz, 1H), 5.10 (t, J = 4.7 Hz, 1H), 4.01 – 3.92 (m, 2H), 3.92 – 3.83 (m, 2H), 2.99 (d, J = 4.7 Hz, 2H). ¹³C NMR (101 MHz, CDCl₃) δ 162.68 (d, J = 245.2 Hz), 138.53 (d, J = 7.6 Hz), 129.59 (d, J = 8.3 Hz), 125.33 (d, J = 2.8 Hz), 116.56 (d, J = 21.2 Hz), 113.42 (d, J = 21.0 Hz), 104.13, 64.95, 40.39 (d, J = 1.6 Hz). HRMS (EI): calcd for C₁₀H₁₁FO₂: 182.0743, found: 182.0746。