1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 38 - 7 . 19 ( m , 10 H ) , 7 . 09 - 7 . 00 ( m , 1 H ) , 6 . 94 ( s , 1 H ) , 6 . 86 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 5 . 75 및 5 . 71 ( AB q , J = 6 . 8 Hz , 2 H ) , 5 . 17 - 5 . 12 ( m , 2 H ) , 4 . 46 - 4 . 31 ( m , 3 H ) , 3 . 92 - 3 . 84 ( m , 1 H ) , 3 . 29 - 3 . 05 ( m , 1 H ) , 2 . 99 ( t , J = 7 . 2 Hz , 2 H ) , 2 . 74 - 2 . 60 ( m , 2 H ) , 2 . 35 - 2 . 29 ( m , 1 H ) , 1 . 74 - 1 . 43 ( m , 5 H ) , 1 . 40 - 1 . 22 ( m , 4 H ) , 1 . 10 - 0 . 98 ( m , 1 H ) .