熔点: 144.7-146.5 oC,1H NMR (400 MHz, CDCl3) δ 8.55 (d, J = 8.0 Hz, 2H), 8.14 (s, 1H), 7.76 (d, J = 8.4 Hz, 2H), 7.53 (d, J = 8.0 Hz, 2H), 7.43 (d, J = 8.4 Hz, 2H). 13C{1H} NMR (101 MHz, CDCl3) δ 177.16, 157.31, 141.75, 140.86, 136.47, 134.79, 133.09, 132.39, 129.17, 128.90, 128.25, 127.07. HRMS (ESI) (M+H)+ Calcd. for C16H10NO2Cl2: 319.0083, Found: 319.0082.