1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 37 - 7 . 33 ( m , 5 H ) , 7 . 03 ( d , J = 8 . 4 Hz , 1 H ) , 6 . 94 ( s , 1 H ) , 6 . 85 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 5 . 75 및 5 . 72 ( AB q , J = 6 . 8 Hz , 2 H ) , 5 . 20 - 5 . 12 ( m , 2 H ) , 4 . 37 ( br d , J = 42 . 0 Hz , 1 H ) , 3 . 94 - 3 . 84 ( m , 1 H ) , 3 . 14 - 3 . 06 ( m , 1 H ) , 2 . 78 - 2 . 54 ( m , 2 H ) , 2 . 33 ( d , J = 12 . 4 Hz , 1 H ) , 1 . 67 - 1 . 23 ( m , 10 H ) , 1 . 07 - 1 . 03 ( m , 3 H ) , 0 . 91 - 0 . 87 ( m , 2 H ) .