¹H NMR (400 MHz, CDCl₃) δ 8.20 (d, J = 8.3 Hz, 1H), 7.92 (d, J = 8.0 Hz, 1H), 7.84 (d, J = 7.7 Hz, 1H), 7.66 – 7.47 (m, 4H), 5.31 (t, J = 4.8 Hz, 1H), 4.08 – 3.94 (m, 2H), 3.92 – 3.80 (m, 2H), 3.54 (d, J = 4.8 Hz, 2H). ¹³C NMR (101 MHz, CDCl₃) δ 133.70, 132.40, 132.23, 128.54, 127.71, 127.30, 125.75, 125.35, 123.90, 104.13, 64.78, 37.60. HRMS (EI): calcd for C₁₄H₁₄O₂: 214.0994, found: 214.0992。