1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 39 - 7 . 32 ( m , 5 H ) , 7 . 02 ( t , J = 8 . 8 Hz , 1 H ) , 6 . 97 ( s , 1 H ) , 6 . 84 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 5 . 76 및 5 . 72 ( AB q , J = 6 . 4 Hz , 2 H ) , 5 . 20 - 5 . 09 ( m , 2 H ) , 4 . 37 ( br d , J = 43 . 6 Hz , 1 H ) , 3 . 95 - 3 . 84 ( m , 1 H ) , 3 . 15 - 3 . 05 ( m , 1 H ) , 2 . 72 - 2 . 59 ( m , 2 H ) , 2 . 34 ( d , J = 12 . 0 Hz , 1 H ) , 1 . 73 - 1 . 42 ( m , 6 H ) , 1 . 39 - 1 . 25 ( m , 3 H ) , 1 . 21 ( s , 9 H ) , 1 . 11 - 1 . 00 ( m , 1 H ) .