¹H NMR (400 MHz, CDCl₃) δ 7.53 (s, 1H), 7.37 (d, J = 7.8 Hz, 1H), 7.33 (d, J = 8.1 Hz, 1H), 7.18 (t, J = 7.6 Hz, 1H), 6.72 (d, J = 16.0 Hz, 1H), 6.00 (d, J = 16.0 Hz, 1H), 2.01 (d, J = 12.9 Hz, 2H), 1.71 (dd, J = 30.0, 16.7 Hz, 5H), 1.51 (t, J= 12.5 Hz, 2H), 1.33 – 1.20 (m, 1H). ¹³C{¹H} NMR (101 MHz, CDCl₃) δ 138.11, 131.81, 130.87, 130.14, 129.18, 128.83, 125.37, 122.79, 121.75, 41.67, 36.24, 24.79, 22.78. HRMS (ESI) m/z calcd for C₁₅H₁₆BrNNa⁺ [M+Na]⁺: 312.0358, found 312.0354.