1H NMR (400 MHz, CDCl3) δ 8.01 (d, J = 13.7 Hz, 1H), 7.63 – 7.53 (m, 3H), 7.47 (tdd, J = 8.5, 5.2, 3.6 Hz, 3H). 13C{1H} NMR (101 MHz, CDCl3) δ 139.04, 137.06, 132.11, 130.01, 129.35, 129.10. GC-MS (m/z): 149.
