1 H NMR ( 400 MHz , 클로로포름 - d ) δ 8 . 04 ( d , J = 1 . 4 Hz , 1 H ) , 7 . 74 ( d , J = 1 . 5 Hz , 1 H ) , 4 . 72 ( t , J = 6 . 3 Hz , 2 H ) , 4 . 58 ( t , J = 5 . 8 Hz , 2 H ) , 3 . 77 ( dd , J = 11 . 6 , 2 . 3 Hz , 2 H ) , 3 . 69 ( ddd , J = 11 . 9 , 6 . 5 , 5 . 5 Hz , 1 H ) , 3 . 23 ( dd , J = 4 . 8 , 2 . 6 Hz , 2 H ) , 3 . 18 ( dd , J = 11 . 5 , 2 . 3 Hz , 2 H ) , 1 . 92 - 1 . 83 ( m , 2 H ) , 1 . 73 - 1 . 65 ( m , 2 H ) .