¹H NMR (400 MHz, CDCl₃) δ 7.56 (d, J = 7.9 Hz, 2H), 7.39 (d, J = 7.9 Hz, 2H), 5.09 (t, J = 4.5 Hz, 1H), 3.97 – 3.89 (m, 2H), 3.87 – 3.80 (m, 2H), 3.03 (d, J = 4.5 Hz, 2H). ¹³C NMR (101 MHz, CDCl₃) δ 140.17, 130.09, 128.91 (d, J = 32.4 Hz), 125.14 (q, J = 3.7 Hz), 124.28 (d, J = 271.9 Hz), 103.98, 65.04, 40.50. HRMS (EI): calcd for C₁₀H₁₄S₂: 198.0537, found: 198.0535。