¹H NMR (400 MHz, CDCl₃) δ 7.36 – 7.22 (m, 4H), 5.54 (s, 1H), 5.17 (s, 1H), 3.57 – 3.44 (m, 2H), 2.65 – 2.63 (m, 2H), 1.85 – 1.66 (m, 6H). ¹³C NMR (101 MHz, CDCl₃) δ 175.70, 148.36, 135.06, 134.09, 128.57, 127.04, 111.36, 51.90, 37.49, 29.87, 28.68, 23.36. HRMS (EI): calcd for C₁₄H₁₆ClNO: 249.0920, found: 249.0916。