1 H NMR ( 400 MHz , CD 3 OD ) δ 7 . 72 ( d , J = 8 . 0 Hz , 2 H ) , 7 . 22 ( d , J = 8 . 0 Hz , 2 H ) , 7 . 10 ( d , J = 8 . 4 Hz , 1 H ) , 6 . 99 ( d , J = 2 . 4 Hz , 1 H ) , 6 . 87 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 5 . 77 및 5 . 71 ( AB q , J = 6 . 4 Hz , 2 H ) , 3 . 38 - 3 . 36 ( m , 1 H ) , 3 . 14 ( dd , J = 18 . 8 , 6 . 4 Hz , 1 H ) , 2 . 91 - 2 . 85 ( m , 2 H ) , 2 . 61 - 2 . 53 ( m , 1 H ) , 2 . 37 - 2 . 34 ( m , 4 H ) , 1 . 87 - 1 . 84 ( m , 1 H ) , 1 . 76 - 1 . 69 ( m , 1 H ) , 1 . 62 ( d , J = 11 . 6 Hz , 1 H ) , 1 . 51 ( d , J = 12 . 0 Hz , 1 H ) , 1 . 40 - 1 . 32 ( m , 4 H ) , 1 . 28 - 1 . 19 ( m , 1 H ) , 1 . 16 ( s , 9 H ) , 1 . 02 - 0 . 98 ( m , 1 H ) .