mp=180-183 ^oC;¹H NMR (400 MHz, CDCl₃) δ 7.68 (d, J = 8.0 Hz, 1H), 7.59 – 7.52 (m, 3H), 7.45 – 7.41 (m, 2H), 7.05 – 7.03 (d, J = 7.3 Hz, 1H), 6.64 – 6.61 (m, 1H), 3.90 (d, J = 14.5 Hz, 1H), 3.65 (d, J = 14.5 Hz, 1H), 3.51 (s, 3H), 1.37 (s, 3H); ¹³C NMR (100 MHz, CDCl₃) δ: 25.9, 30.5, 45.1, 61.8, 71.7, 123.9, 124.1, 127.8, 128.9, 132.3, 133.5, 139.5, 141.2, 143.6, 178.3; HRMS (EI) m/z calcd for C₁₇H₁₆INO₃S [M⁺]: 440.9896; found, 440.9888.