熔点: 130.7-133.5 oC,1H NMR (400 MHz, CDCl3) δ 8.53 (d, J = 6.8 Hz, 2H), 8.18 (s, 1H), 7.84 (s, 1H), 7.73 (d, J = 6.8 Hz, 1H), 7.66 (d, J = 7.8 Hz, 1H), 7.53 (t, J = 7.2 Hz, 1H), 7.43 – 7.36 (m, 2H). 13C{1H} NMR (101 MHz, CDCl3) δ 177.09, 157.20, 141.63, 136.98, 136.19, 135.01, 134.81, 134.06, 131.48, 130.77, 130.25, 129.88, 129.22, 129.02, 125.91, 123.92. HRMS (ESI) (M+H)+ Calcd. for C16H10NO2Cl2: 319.0083, Found: 319.0081.