1H NMR (400 MHz, CDCl3) δ 7.56 – 7.47 (m, 4H), 7.46 – 7.25 (m, 11H), 6.95 (s, 1H). 13C NMR (101 MHz, CDCl3) δ 141.43, 141.06, 139.15, 136.46, 129.71, 129.47, 129.07, 128.34, 128.26, 127.75, 127.25, 127.15, 126.73, 124.06. GC-MS (m/z): 288。