¹H NMR (400 MHz, CDCl₃) δ 7.48 (d, J = 8.6 Hz, 0.19 ´ 2H), 7.27 (d, J = 8.6 Hz, 0.81 ´ 2H), 6.93 (d, J = 8.6 Hz, 0.19 ´2H), 6.87 (d, J = 8.6 Hz, 0.81 ´ 2H), 6.59 (d, J = 15.6 Hz, 0.81 ´ 1H), 6.48 (d, J = 15.6 Hz, 0.81 ´ 1H), 6.42 (d, J = 10.8 Hz, 0.19 ´ 1H), 6.15 (d, J = 10.8 Hz, 0.19 ´ 1H), 3.85 (s, 0.19 ´ 3H), 3.84 (s, 0.81 ´ 3H), 2.81 (t, J = 7.4 Hz, 2H), 1.81 – 1.66 (m, 2H), 1.55 – 1.42 (m, 2H), 1.06 – 0.95 (m, 3H). ¹³C NMR (101 MHz, CDCl₃) δ 158.68, 130.11, 129.90, 127.04, 126.63, 125.05, 124.89, 122.59, 114.04, 113.61, 55.28, 55.24, 35.48, 32.53, 32.27, 31.59, 21.91, 21.70, 13.64, 13.62. HRMS (EI): calcd for C₁₃H₁₈OS: 222.1078, found: 222.1080。