NMR:
1H NMR (400 MHz, CDCl3 ) δ 8.39 (d, J = 8.1 Hz, 1H), 8.16 (d, J = 7.1 Hz, 1H), 7.86 (s, 2H), 7.76 – 7.69 (m, 2H), 7.66 (s, 1H), 7.48 – 7.39 (m, 1H), 7.34 (dd, J = 8.1, 1.3 Hz, 1H), 7.25 (s, 1H),7.21 – 7.08 (m, 3H), 6.96 (dd, J = 7.2, 1.6 Hz, 1H), 5.79 (s, 1H), 5.29 (s, 2H), 4.33 (t, J = 6.4 Hz, 2H), 2.88 (t, J = 6.4 Hz, 2H), 2.34 (s, 6H).
13C NMR (100 MHz, DMSO-d6 ) δ 166.07, 162.24 (d, JC-F = 243.9 Hz), 156.18, 146.41, 139.52 (d, JC-F = 7.6 Hz), 137.66, 133.57, 132.30, 131.58, 130.70 (d, JC-F = 8.2 Hz), 129.41, 128.98, 124.67, 124.23, 123.59 (d, JC-F = 2.4 Hz), 122.68, 120.33, 119.27, 114.89 (d, JC-F = 20.9 Hz), 114.33 (d, JC-F = 22.0 Hz), 111.74, 111.66, 110.86, 69.13, 55.77, 46.35, 42.87.
