熔点:138.2 - 139.9 ^oC.¹H NMR (400 MHz, CDCl3) δ 8.20 (d, J = 7.6 Hz, 2H), 7.64 (t, J = 7.3 Hz, 1H), 7.53 (t, J = 7.4 Hz, 2H), 7.41 (d, J = 7.6 Hz, 2H), 7.35 (t, J = 7.3 Hz, 2H), 7.29 (d, J = 6.9 Hz, 1H), 6.09 (s, 1H), 2.92 (s, 2H), 2.88 (s, 1H), 2.66 (d, J = 14.9 Hz, 1H), 2.54 (d, J = 12.6 Hz, 1H), 2.27 (td, J = 12.1, 5.0 Hz, 1H). ¹³C NMR (101 MHz, CDCl3) δ 193.50, 140.51, 136.78, 134.03, 133.91, 129.36, 128.80, 128.44, 127.54, 125.23, 120.69, 118.97, 44.59, 33.97, 30.10, 24.63. HRMS (EI): calcd for C₂₀H₁₇NO: 287.1310, found: 287.1311.