1 H NMR ( 400 MHz , 클로로포름 - d ) δ 10 . 32 ( d , J = 1 . 1 Hz , 1 H ) , 7 . 91 ( d , J = 1 . 3 Hz , 1 H ) , 7 . 63 ( d , J = 1 . 3 Hz , 1 H ) , 7 . 48 - 7 . 36 ( m , 2 H ) , 7 . 16 ( t , J = 60 . 8 Hz , 1 H ) .