NMR:
1H NMR (600 MHz, DMSO-d6) δ 9.07 (dd, J = 1.8, 1.0 Hz, 1H), 8.73 (d, J = 7.4 Hz, 1H), 8.44 (d, J = 0.7 Hz, 1H), 8.28–8.19 (m, 2H), 7.82 (t, J = 1.9 Hz, 1H), 7.68 (dd, J = 9.5, 1.8 Hz, 1H), 7.63–7.57 (m, 2H), 7.36 (t, J = 7.9 Hz, 1H), 7.22 (s, 1H), 7.16 (ddd, J = 8.0, 2.3, 1.0 Hz, 1H), 4.46–4.42 (m, 1H), 2.96 (t, J = 7.0 Hz, 2H), 2.28 (dd, J = 11.3, 4.5 Hz, 2H), 2.27–2.16 (m, 6H), 2.13–2.10 (m, 2H), 1.75–1.65 (m, 2H), 1.37–1.34 (m, 4H), 1.30–1.21 (m, 2H).
13C NMR (151 MHz, DMSO) δ 163.1, 145.5, 144.9, 139.4, 134.3, 129.3, 128.2, 123.5, 120.1, 119.9, 118.0, 115.7, 115.6, 110.2, 57.2, 53.9, 44.6, 40.1, 30.1, 25.4, 23.9, 14.8.
