¹H NMR (400 MHz, CDCl₃) δ 7.78 (d, J = 1.4 Hz, 1H), 7.62 – 7.49 (m, 5H), 7.45 – 7.35 (m, 2H), 7.29 (d, J = 7.9 Hz, 2H), 7.12 – 7.01 (m, 2H), 3.86 (s, 3H), 2.44 (s, 3H). ¹³C{H} NMR (101 MHz, CDCl₃) δ 156.49, 140.87, 138.92, 138.49, 136.90, 130.89, 130.67, 129.41, 128.67, 128.29, 128.25, 128.22, 127.08, 125.58, 120.82, 111.21, 55.56, 21.08. m/z (GC-MS): 274。