1 H NMR ( 400 MHz , 클로로포름 - d ) δ 7 . 21 ( d , J = 0 . 9 Hz , 1 H ) , 7 . 12 ( d , J = 1 . 0 Hz , 1 H ) , 4 . 77 ( ddt , J = 9 . 4 , 7 . 2 , 4 . 7 Hz , 1 H ) , 4 . 69 ( td , J = 6 . 6 , 2 . 7 Hz , 2 H ) , 4 . 63 ( dt , J = 10 . 4 , 6 . 0 Hz , 2 H ) , 3 . 82 - 3 . 62 ( m , 1 H ) , 2 . 82 ( pd , J = 8 . 8 , 7 . 9 , 3 . 9 Hz , 3 H ) , 2 . 53 ( td , J = 8 . 5 , 6 . 3 Hz , 1 H ) , 2 . 41 ( dtd , J = 13 . 8 , 8 . 6 , 5 . 4 Hz , 1 H ) , 2 . 25 - 2 . 04 ( m , 1 H ) .