熔点：69.3-71.2 ^oC。¹H NMR (400 MHz, CDCl₃) δ 9.16 (s, 1H), 8.25 (s, 1H), 8.13 (d, J = 8.4 Hz, 1H), 7.86 (d, J = 8.1 Hz, 1H), 7.74 – 7.62 (m, 3H), 7.56 (t, J = 7.5 Hz, 1H), 7.06 (d, J = 8.7 Hz, 2H), 3.88 (s, 3H). ¹³C{¹H} NMR (101 MHz, CDCl₃) δ 159.8, 149.8, 146.9, 133.5, 132.4, 130.2, 129.1, 129.1, 128.5, 128.1, 127.8, 126.9, 114.7, 55.4. HRMS (EI) m/z: calcd for C₁₆H₁₃NO, 235.0997; found, 235.0995.