1 H NMR ( 400 MHz , 클로로포름 - d ) δ 8 . 32 ( d , J = 2 . 1 Hz , 1 H ) , 7 . 53 ( d , J = 8 . 4 Hz , 1 H ) , 6 . 26 ( d , J = 8 . 6 Hz , 1 H ) , 4 . 56 ( t , J = 6 . 8 Hz , 2 H ) , 4 . 51 - 4 . 32 ( m , 4 H ) , 3 . 73 ( s , 1 H ) , 3 . 26 - 3 . 11 ( m , 2 H ) , 3 . 08 ( s , 1 H ) , 3 . 00 - 2 . 85 ( m , 2 H ) , 2 . 71 - 2 . 58 ( m , 1 H ) , 2 . 21 - 1 . 98 ( m , 1 H ) .