NMR:
1H NMR (300 MHz, [D6]DMSO) δ=2.27 (s, 3H), 5.61 (s, 2 H), 7.38 (d, J=8.3 Hz, 2 H), 7.74-7.84 (m, 1H), 7.86 - 7.95 (m, 3H), 7.97 (br s, 1H), 8.24 - 8.33 (m, 2H), 8.40 (br s, 1H), 10.48 ppm (s, 1H);
13C NMR (101 MHz, [D6]DMSO) δ=9.3 (s, CH3), 53.1 (s, CH2), 111.0 (s, C), 113.3 (d, JC-F= 20.3 Hz, CH), 114.8 (s, C), 116.4 (s, CH), 118.6 (s, C), 119.7 (d, JC-F= 25.7 Hz, CH), 121.4 (q, JC-F= 269.1 Hz, C), 122.4(s, C), 128.1 (d, JC-F= 10.3 Hz, CH), 128.2 (s, 2CH), 132.9 (s, 2CH), 136.2 (q, JC-F= 35.6 Hz, C), 138.7 (s, C), 141.7 (s, C), 142.6 (s, C), 147.9 (d, JC-F= 13.0 Hz, C), 151.4 (s, C), 163.0 (d, JC-F= 250.4 Hz, C), 165.5 (s, C), 166.1 ppm (s, C);
