熔点: 184.3 - 185.9 ^oC. ¹H NMR (400 MHz, CDCl₃) δ 8.40 – 8.33 (m, 2H), 8.20 – 8.12 (m, 2H), 7.46 – 7.39 (m, 2H), 7.36 (dd, J = 10.2, 4.8 Hz, 2H), 7.28 (s, 1H), 6.23 – 6.16 (m, 1H), 3.62 (tdd, J = 8.0, 5.4, 2.7 Hz, 1H), 2.67 – 2.61 (m, 2H), 2.60 – 2.44 (m, 2H), 2.26 – 2.18 (m, 1H), 1.98 – 1.87 (m, 1H). ¹³C NMR (101 MHz, CDCl₃) δ 201.69, 150.28, 141.45, 140.87, 136.46, 129.33, 128.36, 127.08, 125.06, 123.98, 122.44, 41.96, 28.42, 27.01, 25.98. HRMS (EI): calcd for C₁₉H₁₇NO₃: 307.1208, found: 307.1215.