1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 39 - 7 . 31 ( 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 . 76 및 5 . 72 ( AB q , J = 6 . 4 Hz , 2 H ) , 5 . 17 - 5 . 12 ( m , 2 H ) , 4 . 86 - 4 . 78 ( m , 1 H ) , 4 . 43 - 4 . 31 ( m , 1 H ) , 3 . 95 - 3 . 82 ( m , 1 H ) , 3 . 14 - 3 . 04 ( m , 1 H ) , 2 . 72 - 2 . 56 ( m , 2 H ) , 2 . 38 - 2 . 32 ( m , 1 H ) , 2 . 20 - 2 . 06 ( m , 3 H ) , 1 . 73 - 1 . 59 ( m , 3 H ) , 1 . 56 - 1 . 43 ( m , 3 H ) , 1 . 42 - 1 . 30 ( m , 4 H ) , 1 . 26 ( d , J = 6 . 4 Hz , 3 H ) , 1 . 08 - 1 . 01 ( m , 1 H ) , 0 . 91 ( t , J = 7 . 2 Hz , 3 H ) .