1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ = 9 . 03 ( br s , 1 H ) , 8 . 31 ( br s , 1 H ) , 8 . 26 ( br s , 1 H ) , 8 . 13 ( br s , 1 H ) , 6 . 43 - 6 . 24 ( m , 2 H ) , 5 . 97 - 5 . 83 ( m , 2 H ) , 5 . 71 ( br d , J = 51 . 6 Hz , 1 H ) , 5 . 64 ( br d , J = 50 . 0 Hz , 1 H ) , 5 . 12 - 4 . 99 ( m , 1 H ) , 4 . 96 - 4 . 90 ( m , 1 H ) , 4 . 68 - 4 . 32 ( m , 6 H ) , 4 . 14 - 3 . 97 ( m , 2 H ) , 3 . 77 - 3 . 62 ( m , 2 H ) .