1 H NMR ( 400 MHz , CDCl 3 ) δ 9 . 33 ( br s , 1 H ) , 7 . 28 - 7 . 16 ( m , 5 H ) , 7 . 12 ( d , J = 8 . 2 Hz , 1 H ) , 7 . 08 - 7 . 01 ( m , 1 H ) , 6 . 96 - 6 . 90 ( m , 2 H ) , 5 . 73 및 5 . 68 ( AB q , J = 6 . 4 Hz , 2 H ) , 5 . 08 - 4 . 98 ( m , 1 H ) , 3 . 63 ( m , 1 H ) , 3 . 20 - 2 . 98 ( m , 4 H ) , 2 . 82 - 2 . 73 ( m , 1 H ) , 2 . 34 ( d , J = 13 . 6 Hz , 1 H ) , 2 . 09 ( d , J = 12 . 8 Hz , 1 H ) , 1 . 95 - 1 . 88 ( m , 1 H ) , 1 . 69 - 1 . 36 ( m , 7 H ) , 1 . 29 ( d , J = 5 . 6 Hz , 3 H ) , 1 . 28 - 1 . 22 ( m , 1 H ) , 1 . 10 - 1 . 01 ( m , 1 H ) .