1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 39 - 7 . 32 ( m , 5 H ) , 7 . 03 ( t , J = 8 . 4 Hz , 1 H ) , 6 . 96 ( s , 1 H ) , 6 . 88 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 5 . 77 및 5 . 72 ( AB q , J = 6 . 4 Hz , 2 H ) , 5 . 18 - 5 . 13 ( m , 2 H ) , 4 . 70 - 4 . 63 ( m , 1 H ) , 4 . 37 ( br d , J = 43 . 2 Hz , 1 H ) , 3 . 96 - 3 . 84 ( m , 1 H ) , 3 . 15 - 3 . 05 ( m , 1 H ) , 2 . 76 - 2 . 56 ( m , 2 H ) , 2 . 34 ( d , J = 10 . 8 Hz , 1 H ) , 1 . 94 - 1 . 91 ( m , 2 H ) , 1 . 77 - 1 . 37 ( m , 10 H ) , 1 . 35 - 1 . 20 ( m , 7 H ) , 1 . 09 - 0 . 99 ( m , 1 H ) .