1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 38 - 7 . 28 ( m , 5 H ) , 7 . 02 ( t , J = 8 . 8 Hz , 1 H ) , 6 . 95 ( s , 1 H ) , 6 . 87 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 5 . 74 및 5 . 70 ( AB q , J = 6 . 8 Hz , 2 H ) , 5 . 20 - 5 . 11 ( m , 2 H ) , 4 . 86 - 4 . 80 ( m , 1 H ) , 4 . 41 - 4 . 30 ( m , 1 H ) , 3 . 95 - 3 . 82 ( m , 1 H ) , 3 . 13 - 3 . 03 ( m , 1 H ) , 2 . 71 - 2 . 58 ( m , 2 H ) , 2 . 35 - 2 . 31 ( m , 1 H ) , 2 . 00 - 1 . 92 ( m , 2 H ) , 1 . 76 - 1 . 60 ( m , 6 H ) , 1 . 57 - 1 . 34 ( m , 9 H ) , 1 . 32 - 1 . 21 ( m , 4 H ) , 1 . 07 - 1 . 01 ( m , 1 H ) .