¹H NMR (400 MHz, CDCl₃) δ 7.64 (d, J =8.0 Hz, 1H), 7.53 (d, J = 8.0 Hz, 1H), 7.43 – 7.37 (m, 9H), 7.34 – 7.20 (m, 4H), 6.72 (d, J = 3.4 Hz, 1H), 6.42 (d, J = 3.4 Hz, 1H). ¹³C NMR (101 MHz, CDCl₃) δ 141.23, 138.54, 136.56, 131.34, 130.25, 128.74, 128.38, 128.33, 127.80, 127.77, 127.55, 127.12, 122.39, 121.49, 120.87, 120.86, 109.84, 103.86. HRMS (EI): calcd for C₂₂H₁₇N: 295.1361, found: 295.1356。