화합물 171 - E 1 LC / MS ESI 438 . 3 ( M + H ) +. 1 H NMR ( 400 MHz , MeOD ) δ 7 . 50 - 7 . 43 ( m , 3 H ) , 7 . 12 - 7 . 03 ( m , 2 H ) , 6 . 52 ( d , J = 7 . 6 Hz , 1 H ) , 5 . 01 ( s , 1 H ) , 3 . 91 ( s , 3 H ) , 3 . 47 - 3 . 43 ( m , 3 H ) , 3 . 33 - 3 . 00 ( m , 3 H ) , 2 . 80 - 2 . 77 ( m , 2 H ) , 2 . 65 - 2 . 62 ( m , 2 H ) , 2 . 40 - 2 . 10 ( m , 2 H ) , 1 . 95 - 1 . 85 ( m , 2 H ) , 1 . 75 - 1 . 68 ( m , 3 H ) , 1 . 52 ? 1 . 24 ( m , 6 H ) .