1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ = 8 . 88 ( br s , 1 H ) , 8 . 51 ( br s , 1 H ) , 8 . 16 ( s , 1 H ) , 8 . 05 ( s , 1 H ) , 6 . 38 ( d , J = 15 . 6 Hz , 1 H ) , 6 . 33 ( d , J = 14 . 1 Hz , 1 H ) , 6 . 14 - 6 . 09 ( m , 2 H ) , 6 . 01 ( d , J = 49 . 2 Hz , 1 H ) , 5 . 42 ( d , J = 49 . 6 Hz , 1 H ) , 5 . 02 - 4 . 87 ( m , 2 H ) , 4 . 76 - 3 . 92 ( m , 8 H ) , 3 . 75 - 3 . 56 ( m , 2 H )