1 H NMR ( 400 MHz , CD 3 OD ) δ 7 . 81 ( dd , J = 8 . 0 , 2 . 0 Hz , 1 H ) , 7 . 27 - 7 . 23 ( m , 1 H ) , 7 . 17 ( d , J = 8 . 4 Hz , 1 H ) , 7 . 05 ( d , J = 2 . 4 Hz , 1 H ) , 6 . 94 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 6 . 77 - 6 . 72 ( m , 2 H ) , 5 . 79 및 5 . 73 ( AB q , J = 6 . 4 Hz , 2 H ) , 3 . 65 ( br , 1 H ) , 3 . 25 ( d , J = 6 . 0 Hz , 1 H ) , 3 . 08 ( dd , J = 13 . 2 , 3 . 6 Hz , 1 H ) , 2 . 95 ( br d , J = 19 . 2 Hz , 1 H ) , 2 . 72 - 2 . 65 ( m , 1 H ) , 2 . 45 ( d , J = 14 . 0 Hz , 1 H ) , 1 . 93 ( d , J = 12 . 4 Hz , 1 H ) , 1 . 85 - 1 . 77 ( m , 1 H ) , 1 . 68 ( d , J = 12 . 4 Hz , 1 H ) , 1 . 58 - 1 . 39 ( m , 4 H ) , 1 . 34 - 1 . 21 ( m , 2 H ) , 1 . 17 ( s , 9 H ) , 1 . 10 - 1 . 06 ( m , 1 H ) .