1 H NMR ( 400 MHz , CDCl 3 ) δ 9 . 36 ( s , 1 H ) , 9 . 07 ( br d , J = 9 . 0 Hz , 1 H ) , 8 . 10 ( d , J = 2 . 0 Hz , 1 H ) , 7 . 97 ( d , J = 9 . 0 Hz , 1 H ) , 7 . 73 ( dd , J = 9 . 0 , 2 . 0 Hz , 1 H ) , 7 . 38 - 7 . 26 ( m , 5 H ) , 4 . 59 ( AB 사 중선 , JAB = 12 . 0 Hz , Δν AB = 7 . 2 Hz , 2 H ) , 4 . 34 - 4 . 22 ( m , 1 H ) , 4 . 18 ( ddd , J = 12 . 0 , 4 . 5 , 1 . 5 Hz , 1 H ) , 3 . 69 - 3 . 62 ( m , 1 H ) , 3 . 62 - 3 . 52 ( m , 2 H ) , 3 . 49 ( dd , ABC 패턴 의 성분 , J = 10 . 3 , 4 . 3 Hz , 1 H ) , 2 . 21 - 2 . 12 ( m , 2 H ) , 1 . 88 - 1 . 76 ( m , 1 H ) , 1 . 66 - 1 . 55 ( m , 1 H ) .