长沙资材科技有限公司

¹H NMR (400 MHz, CDCl₃) δ: 8.01 – 7.98 (dd, J = 8.5, 5.5 Hz, 2H), 7.11 – 7.15 (m, 2H), 4.44 – 4.35 (m, 1H), 3.90 – 3.86 (dd, J = 14.8, 7.0 Hz, 1H), 3.76 – 3.74 (dd, J = 14.8, 7.4 Hz, 1H), 3.37 – 3.33 (dd, J = 16.1, 6.3 Hz, 1H), 3.05 – 3.00(dd, J = 16.1, 6.4 Hz, 1H), 2.22 – 2.16 (td, J = 12.8, 6.5 Hz, 1H), 1.98 – 1.89 (m, 2H), 1.62 – 1.53 (ddd, J = 16.1, 12.5, 7.9 Hz, 1H). ¹³C NMR (100 MHz, CDCl₃) δ: 25.5, 31.6, 44.5, 67.8, 75.3, 115.6 (d, J_C-F = 22.0 Hz), 130.8 (d, J_C-F = 9.3 Hz), 133.5 (d, J_C-F = 3.0 Hz), 165.7 (d, J_C-F = 254.0 Hz), 196.8.