1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 34 ( br , 5 H ) , 7 . 01 ( d , J = 8 . 4 Hz , 1 H ) , 6 . 94 ( d , J = 2 . 4 Hz , 1 H ) , 6 . 83 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 5 . 75 및 5 . 73 ( AB q , J = 6 . 4 Hz , 2 H ) , 5 . 13 ( br , 2 H ) , 4 . 40 ( br , 1 H ) , 3 . 89 ( br , 1 H ) , 3 . 09 ( d , J = 8 . 8 Hz , 1 H ) , 2 . 70 - 2 . 62 ( m , 2 H ) , 2 . 34 ( t , J = 7 . 6 Hz , 2 H ) , 1 . 75 - 1 . 40 ( m , 6 H ) , 1 . 39 - 1 . 23 ( m , 9 H ) , 1 . 06 - 0 . 90 ( m , 2 H ) , 0 . 85 ( t , J = 7 . 2 Hz , 3 H ) .