1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 40 - 7 . 29 ( m , 5 H ) , 7 . 02 ( d , J = 8 . 0 Hz , 1 H ) , 6 . 95 ( d , J = 2 . 0 Hz , 1 H ) , 6 . 87 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 5 . 75 및 5 . 71 ( AB q , J = 6 . 4 Hz , 2 H ) , 5 . 18 - 5 . 07 ( m , 2 H ) , 4 . 44 - 4 . 28 ( m , 1 H ) , 4 . 13 - 4 . 05 ( m , 2 H ) , 3 . 98 - 84 ( m , 1 H ) , 3 . 14 - 3 . 03 ( m , 1 H ) , 2 . 74 - 2 . 56 ( m , 2 H ) , 2 . 35 - 2 . 31 ( m , 1 H ) , 1 . 71 - 1 . 41 ( m , 7 H ) , 1 . 39 - 1 . 21 ( m , 11 H ) , 1 . 07 - 0 . 98 ( m , 1 H ) , 0 . 89 - 0 . 85 ( m , 6 H ) .