1H NMR (400 MHz, CDCl3) δ 8.27 (s, 1H), 7.57 – 7.50 (m, 3H), 7.41 – 7.32 (m, 3H), 7.27 (dd, J = 13.5, 5.6 Hz, 2H), 7.13 (d, J = 7.6 Hz, 2H). 13C{1H} NMR (101 MHz, CDCl3) δ 149.59, 134.79, 131.34, 131.16, 130.72, 130.52, 130.02, 129.87, 129.19, 128.68. GC-MS (m/z): 225.