沸点: 125.1 – 126.7 ^oC。 ¹H NMR (400 MHz, CDCl3) δ 7.66 (d, J = 8.4 Hz, 1H), 7.60 (d, J = 1.5 Hz, 1H), 7.43 (d, J = 7.7 Hz, 2H), 7.35 (t, J = 7.6 Hz, 2H), 7.28 (s, 1H), 6.93 (d, J = 8.4 Hz, 1H), 6.21 (d, J = 4.2 Hz, 1H), 3.98 (s, 3H), 3.97 (s, 3H), 3.64 – 3.53 (m, 1H), 2.64 – 2.60 (m, 2H), 2.52 (ddd, J = 42.4, 12.1, 3.8 Hz, 2H), 2.22 - 2.14 (m, 1H), 1.92 (ddd, J = 16.9, 10.5, 5.9 Hz, 1H). ¹³C NMR (101 MHz, CDCl3) δ 201.93, 153.26, 149.23, 141.74, 136.23, 129.43, 128.31, 126.88, 125.03, 123.25, 122.76, 110.58, 110.03, 56.10, 56.02, 40.82, 29.08, 27.24, 26.54. HRMS (ESI): calcd for C₂₁H₂₃O₃ [M + H]: 323.1647, found: 323.1649.