1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 30 ( br , 5 H ) , 6 . 99 ( d , J = 6 . 0 Hz , 1 H ) , 6 . 96 ( d , J = 2 . 4 Hz , 1 H ) , 6 . 82 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 5 . 76 및 5 . 68 ( Ab q , J = 6 . 4 Hz , 2 H ) , 5 . 12 ( br , 2 H ) , 4 . 41 ( br , 1 H ) , 3 . 86 ( br , 1 H ) , 3 . 09 ( br , 1 H ) , 2 . 70 - 2 . 65 ( m , 2 H ) , 2 . 34 ( d , J = 13 . 2 Hz , 1 H ) , 1 . 99 ( br , 1 H ) , 1 . 88 ( d , J = 2 . 4 Hz , 6 H ) , 1 . 73 - 1 . 64 ( m , 8 H ) , 1 . 58 - 1 . 50 ( m , 5 H ) , 1 . 35 - 1 . 23 ( m , 4 H ) , 1 . 09 - 1 . 03 ( m , 1 H ) .