1H NMR (400 MHz, CDCl3) δ 7.54 – 7.47 (m, 2H), 7.45 – 7.34 (m, 4H), 7.33 – 7.19 (m, 4H), 6.59 (s, 1H), 3.97 (t, J = 6.6 Hz, 2H), 1.91 – 1.75 (m, 2H), 1.07 (t, J = 7.4 Hz, 3H). 13C NMR (101 MHz, CDCl3) δ 145.51, 140.74, 137.82, 129.79, 128.39, 128.19, 127.83, 126.30, 126.29, 119.99, 75.04, 23.17, 10.38. GC-MS (m/z): 238。
