1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ 8 . 78 ( d , J = 2 . 1 Hz , 1 H ) , 8 . 69 ( s , 1 H ) , 8 . 59 ( s , 1 H ) , 8 . 00 ( d , J = 5 . 1 Hz , 1 H ) , 7 . 67 ( s , 1 H ) , 7 . 24 ( d , J = 5 . 2 Hz , 1 H ) , 6 . 96 ( d , J = 4 . 6 Hz , 1 H ) , 4 . 57 - 4 . 35 ( m , 2 H ) , 4 . 07 - 3 . 87 ( m , 1 H ) , 3 . 59 ( d , J = 6 . 5 Hz , 2 H ) , 3 . 45 ( s , 3 H ) , 3 . 16 ( s , 1 H ) , 2 . 77 - 2 . 65 ( m , 1 H ) , 2 . 54 ( d , J = 11 . 7 Hz , 2 H ) , 2 . 33 ( d , J = 13 . 6 Hz , 2 H ) , 1 . 33 - 1 . 31 ( m , 6 H ) .