1 H NMR ( 400 MHz , 클로로포름 - d ) δ 8 . 38 ( s , 1 H ) , 4 . 71 ( t , J = 6 . 2 Hz , 2 H ) , 4 . 67 - 4 . 46 ( m , 2 H ) , 4 . 40 - 4 . 24 ( m , 2 H ) , 3 . 69 ( p , J = 6 . 1 Hz , 1 H ) , 3 . 29 - 3 . 10 ( m , 4 H ) , 1 . 89 - 1 . 73 ( m , 2 H ) , 1 . 74 - 1 . 47 ( m , 2 H ) .