熔点: 105-108 oC,1H NMR (400 MHz, CDCl3) δ 8.81-8.74 (m, 2H), 8.21 (s, 1H), 7.97-7.86 (m, 2H), 7.37-7.35 (m, 1H), 7.33 (s, 1H), 7.32-7.27 (m, 1H), 7.24 (m, 1H). 13C{1H} NMR (101 MHz, CDCl3) δ 176.90, 166.47 (d, J = 257.1 Hz), 163.08 (d, J = 248.8 Hz), 157.41, 141.88, 135.94, 133.89 (d, J =9.5 Hz), 131.25 (d, J = 2.9 Hz), 127.68 (d, J = 8.3 Hz), 126.07, 116.02 (d, J = 22.4 Hz), 115.79 (d, J = 22.4 Hz). HRMS (ESI) (M+H)+ Calcd. for C16H10NO2F2: 286.0675, Found: 286.0675.