j3FLcmvf8YS9xNhi
1H NMR (400 MHz, CDCl3) δ 8.48 (d, J = 4.1 Hz, 1H), 7.65 (d, J = 8.2 Hz, 1H), 7.39 – 7.33 (m, 5H), 7.32 – 7.29 (m, 3H), 7.28 (s, 1H), 7.18 – 7.13 (m, 2H), 7.09 (dd, J = 8.3, 4.7 Hz, 1H), 6.93 (d, J = 3.5 Hz, 1H), 6.58 (d, J = 3.4 Hz, 1H). 13C NMR (101 MHz, CDCl3) δ 146.78, 143.99, 140.51, 137.84, 133.63, 130.42, 129.86, 129.24, 128.75, 128.36, 128.00, 127.87, 127.78, 120.49, 116.93, 116.88, 104.64. HRMS (EI): calcd for C21H16N2: 296.1313, found: 296.1311。