¹H NMR (400 MHz, CDCl₃) δ 7.82 (t, J = 7.1 Hz, 3H), 7.75 (s, 1H), 7.53 – 7.41 (m, 3H), 5.18 (t, J = 4.7 Hz, 1H), 4.01 – 3.92 (m, 2H), 3.91 – 3.82 (m, 2H), 3.16 (d, J = 4.7 Hz, 2H). ¹³C NMR (101 MHz, CDCl₃) δ 133.64, 133.45, 132.31, 128.15, 128.07, 127.76, 127.59, 127.55, 125.84, 125.39, 104.61, 64.97, 40.86. HRMS (EI): calcd for C₁₄H₁₄O₂: 214.0994, found: 214.0990。