¹H NMR (400 MHz, CDCl₃) δ 7.29 (t, J = 3.6 Hz, 1H), 7.13 (s, 1H), 7.06 (d, J = 4.9 Hz, 1H), 5.10 (t, J = 4.6 Hz, 1H), 4.02 – 3.93 (m, 2H), 3.93 – 3.84 (m, 2H), 3.03 (d, J = 4.6 Hz, 2H). ¹³C NMR (101 MHz, CDCl₃) δ 136.14, 128.99, 125.21, 122.39, 104.04, 65.01, 35.21. HRMS (EI): calcd for C₈H₁₀O₂S: 170.0402, found: 170.0400。