¹H NMR (400 MHz, CDCl₃) δ 7.28 (dd, J = 5.0, 2.9 Hz, 1H), 7.09 (dd, J = 5.0, 1.0 Hz, 1H), 7.03 (d, J = 13.0 Hz, 0.91 ´1H), 6.99 – 6.94 (m, 1H), 6.12 (d, J = 6.7 Hz, 0.09 ´ 1H), 5.89 (d, J = 13.0 Hz, 0.91 ´ 1H), 5.40 (d, J = 6.7 Hz, 0.09 ´ 1H), 3.81 (s, 0.09 ´ 3H), 3.69 (s, 0.91 ´ 3H). ¹³C NMR (101 MHz, CDCl₃) δ 148.93, 146.73, 137.38, 128.35, 125.80, 124.49, 124.35, 121.36, 117.95, 100.52, 100.11, 60.39, 56.36. HRMS (EI): calculated for C₇H₈OS: 140.0296; found: 140.0299。