1 H NMR ( 400 MHz , CD 3 OD ) δ 9 . 14 ( s , 1 H ) , 8 . 72 - 8 . 55 ( br s , 1 H ) , 8 . 17 ( d , J = 8 . 5 Hz , 1 H ) , 7 . 71 ( dd , J = 9 . 0 , 2 . 0 Hz , 1 H ) , 5 . 23 - 4 . 97 ( v br m , 1 H ) , 4 . 36 ( dd , J = 11 . 8 , 5 . 3 Hz , 1 H ) , 4 . 18 - 4 . 08 ( m , 1 H ) , 4 . 03 - 3 . 95 ( m , 1 H ) , 3 . 86 ( ddd , J = 12 . 0 , 12 . 0 , 2 . 5 Hz , 1 H ) , 2 . 88 ( dd , ABX 패턴 의 절반 , J = 17 . 1 , 4 . 0 Hz , 1 H ) , 2 . 77 ( dd , ABX 패턴 의 절반 , J = 17 . 1 , 6 . 5 Hz , 1 H ) , 2 . 73 - 2 . 42 ( m , 6 H ) , 2 . 33 - 1 . 93 ( m , 4 H ) .