1 H NMR ( 400 MHz , CD 3 OD ) δ 7 . 18 ( d , J = 8 . 0 Hz , 1 H ) , 7 . 04 ( d , J = 2 . 0 Hz , 1 H ) , 6 . 93 ( dd , J = 8 . 4 , 2 . 4 Hz , 1 H ) , 5 . 79 및 5 . 73 ( AB q , J = 6 . 8 Hz , 2 H ) , 4 . 32 ( s , 2 H ) , 3 . 68 ( br , 1 H ) , 3 . 29 - 3 . 22 ( m , 1 H ) , 3 . 12 - 3 . 08 ( m , 1 H ) , 2 . 99 ( br d , J = 19 . 2 Hz , 1 H ) , 2 . 70 - 2 . 63 ( m , 1 H ) , 2 . 44 ( d , J = 13 . 6 Hz , 1 H ) , 2 . 00 - 1 . 96 ( m , 1 H ) , 1 . 89 - 1 . 81 ( m , 1 H ) , 1 . 70 ( d , J = 13 . 6 Hz , 1 H ) , 1 . 59 - 1 . 40 ( m , 4 H ) , 1 . 32 - 1 . 21 ( m , 2 H ) , 1 . 17 ( s , 9 H ) , 1 . 13 - 1 . 06 ( m , 1 H ) .