熔点: 138.7-141.2 oC，1H NMR (400 MHz, CDCl3) δ 9.37 (s, 1H), 8.50 (d, J= 7.6 Hz, 1H), 8.41 (s, 1H), 8.28 (s, 1H), 8.10 (d, J = 3.6 Hz, 1H), 8.03 – 7.83 (m, 6H), 7.74 – 7.58 (m, 2H), 7.54 (s, 2H). 13C{1H} NMR (101 MHz, CDCl3) δ 178.61, 157.81, 142.78, 136.53, 136.01, 134.16, 133.44, 132.39, 132.27, 130.25, 130.25, 129.14, 128.72, 128.38, 128.30, 127.80, 127.27, 126.83, 126.66, 126.55, 125.51, 125.01, 123.43, 119.07. HRMS (ESI) (M+H)+ Calcd. for C24H16NO2: 350.1176, Found: 350.1175.
