1H NMR (400 MHz, CDCl3) δ 7.46 (d, J = 6.9 Hz, 4H), 7.41 – 7.29 (m, 6H), 4.07 (t, J = 12.2 Hz, 1H), 2.23 – 2.11 (m, 2H), 1.87 (d, J = 12.7 Hz, 2H), 1.77 (d, J = 11.9 Hz, 2H), 1.69 (d, J = 11.9 Hz, 1H), 1.44 – 1.29 (m, 3H). 13C{1H} NMR (101 MHz, CDCl3) δ 170.7, 135.9, 129.9, 129.6, 128.8, 128.4, 51.2, 30.0, 26.0, 25.1. HRMS (EI) m/z: calcd for C22H21NO2, 331.1572; found, 331.1576.