熔点：134.8-137.2 ^oC。¹H NMR (400 MHz, CDCl₃) δ 8.92 (s, 1H), 8.20 (d, J = 8.3 Hz, 1H), 8.12 (d, J = 8.3 Hz, 1H), 8.00 – 7.89 (m, 3H), 7.86 (s, 1H), 7.79 – 7.72 (m, 1H), 7.64 (t, J = 7.6 Hz, 1H), 7.59 – 7.49 (m, 3H), 2.69 (s, 3H). ¹³C{¹H} NMR (101 MHz, CDCl₃) δ 151.5, 147.0, 140.8, 136.0, 134.4, 133.2, 132.5, 130.0, 128.9, 128.8, 128.0, 127.9, 127.8, 127.7, 126.7, 126.5, 126.3, 124.1, 15.7. HRMS (ESI) m/z: calcd for C₂₀H₁₆N [M+H], 270.1283; found, 270.1280.