¹H NMR (400 MHz, CDCl₃) δ 7.51 – 7.44 (m, 2H), 7.40 (d, J = 7.2 Hz, 3H), 7.38 – 7.34 (m, 2H), 7.31 (dd, J = 5.1, 2.5 Hz, 3H), 6.76 (s, 1H), 3.27 (dt, J = 13.5, 6.7 Hz, 1H), 1.46 (s, 3H), 1.44 (s, 3H). ¹³C NMR (101 MHz, CDCl₃) δ 142.11, 139.62, 138.39, 129.70, 128.18, 127.35, 126.99, 126.74, 124.70, 38.24, 23.62. HRMS (EI): calcd for C₁₇H₁₈S: 254.1129, found: 254.1128。