长沙资材科技有限公司

¹H NMR (400 MHz, CDCl₃) δ 7.58 – 7.52 (m, 3H), 7.42 – 7.39 (m, 7H), 7.11 – 7.03 (m, 2H), 6.91 – 6.87 (m, 1H), 3.92 (d, J = 14.5 Hz, 1H), 3.72 (d, J = 14.5 Hz, 1H), 2.70 (s, 3H), 1.44 (s, 3H); ¹³C NMR (100 MHz, CDCl₃) δ: 25.8, 30.6, 45.0, 62.2, 121.8, 122.9, 125.7, 125.8, 127.7, 127.8, 128.9, 130.0, 130.3, 131.5, 133.3, 138.7, 140.1, 140.2, 178.6; HRMS (EI) m/z calcd for C₂₃H₂₁NO₃S [M⁺]: 391.1242; found, 391.1236.