1 H NMR ( 400 MHz , 클로로포름 - d ) δ 8 . 37 ( s , 2 H ) , 4 . 79 ( s , 1 H ) , 4 . 69 ( dt , J = 10 . 0 , 6 . 5 Hz , 2 H ) , 4 . 55 ( t , J = 6 . 1 Hz , 1 H ) , 4 . 48 ( t , J = 5 . 9 Hz , 1 H ) , 3 . 98 ( p , J = 6 . 3 Hz , 1 H ) , 3 . 57 ( s , 1 H ) , 3 . 46 ( dd , J = 11 . 0 , 1 . 6 Hz , 1 H ) , 3 . 36 ( dd , J = 10 . 8 , 2 . 0 Hz , 1 H ) , 2 . 98 ( dd , J = 9 . 6 , 2 . 0 Hz , 1 H ) , 2 . 82 ( d , J = 9 . 6 Hz , 1 H ) , 1 . 97 ( d , J = 9 . 9 Hz , 1 H ) , 1 . 86 ( d , J = 9 . 8 Hz , 1 H ) .