1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 40 - 7 . 29 ( m , 5 H ) , 7 . 05 - 7 . 00 ( m , 1 H ) , 6 . 96 ( s , 1 H ) , 6 . 87 ( dd , J = 8 . 4 , 2 . 8 Hz , 1 H ) , 5 . 75 및 5 . 70 ( AB q , J = 6 . 4 Hz , 2 H ) , 5 . 17 - 5 . 12 ( m , 2 H ) , 5 . 00 - 4 . 92 ( m , 1 H ) , 4 . 42 - 4 . 31 ( m , 1 H ) , 3 . 96 - 3 . 82 ( m , 1 H ) , 3 . 16 - 3 . 03 ( m , 1 H ) , 2 . 76 - 2 . 56 ( m , 2 H ) , 2 . 45 - 2 . 31 ( m , 3 H ) , 2 . 25 - 2 . 08 ( m , 2 H ) , 1 . 88 - 1 . 76 ( m , 1 H ) , 1 . 73 - 1 . 45 ( m , 6 H ) , 1 . 42 - 1 . 22 ( m , 4 H ) , 1 . 08 - 1 . 00 ( m , 1 H ) .