1H NMR (400 MHz, CDCl3) δ 7.58 (s, 1H), 7.55 (d, J = 7.3 Hz, 1H), 7.37 (d, J = 7.3 Hz, 1H), 7.33 (t, J = 14.8 Hz, 1H), 5.91 (s, 1H), 5.67 (s, 1H), 3.53 (s, 2H), 2.41 (s, 3H), 2.13 (s, 3H); 13C NMR (100 MHz, CDCl3) δ 197.2, 143.9, 138.1, 137.5, 133.2, 129.9, 128.1, 126.8, 125.8, 35.3, 21.3, 15.5. HRMS (EI): calcd for C12H14OS: 206.0765; found: 206.0757.