1H NMR (400 MHz, CDCl3) δ: 7.85 – 7.89 (m, 1H), 7.52 – 7.48 (dd, J = 13.3, 6.7 Hz, 1H), 7.20 – 7.24 (m, 1H), 7.15 – 7.10 (dd, J = 10.8, 8.8 Hz, 1H), 4.45 – 4.38 (m, 1H), 3.89 – 3.85 (dd, J = 14.6, 7.2 Hz, 1H), 3.77 – 3.74 (dd, J = 14.7, 7.4 Hz, 1H), 3.33 – 3.31 (ddd, J = 17.0, 6.6, 2.4 Hz, 1H), 3.16 – 3.14 (ddd, J = 17.0, 5.7, 2.9 Hz, 1H), 2.20 – 2.16 (m, 1H), 1.95 – 1.90 (dd, J = 14.3, 7.3 Hz, 2H), 1.61 – 1.52 (m, 1H). 13C NMR (100 MHz, CDCl3) δ: 25.6, 31.6, 49.5 (d, JC-F = 6.9 Hz), 67.8, 74.8 (d, JC-F = 1.9 Hz), 116.6 (d, JC-F = 24 Hz), 124.4 (d, JC-F = 3.4 Hz), 125.7, 130.6 (d, JC-F = 2.5 Hz), 134.5 (d, JC-F = 9.0 Hz), 161.9 (d, JC-F = 253.0 Hz), 196.5 (d, JC-F = 3.8 Hz).
