长沙资材科技有限公司

¹H NMR (400 MHz, CDCl₃) δ 7.83 (d, J = 7.7 Hz, 2H), 7.50 – 7.54 (m, 1H), 7.38 – 7.42 (m, 2H), 7.28 (s, 1H), 7.14 (d, J= 7.2 Hz, 1H), 6.96 – 7.00 (m, 1H), 6.90 (d, J = 7.8 Hz, 1H), 3.69 (q, J = 17.9 Hz, 2H), 3.31 (s, 3H), 1.44 (s, 3H); ¹³C NMR (100 MHz, CDCl₃) δ: 24.9, 26.4, 45.2, 46.0, 108.1, 121.7, 122.1, 127.8, 127.9, 128.4, 133.1, 133.7, 136.3, 143.8, 180.5, 196.1; HRMS (EI) m/z calcd for C₁₈H₁₇NO₂ [M⁺]: 279.1259; found 279.1258.