1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ 8 . 76 ( s , 2 H ) , 8 . 54 ( s , 1 H ) , 8 . 45 ( s , 1 H ) , 7 . 93 ( d , J = 5 . 1 Hz , 1 H ) , 7 . 22 ( d , J = 5 . 1 Hz , 1 H ) , 4 . 40 ( dd , J = 48 . 7 , 9 . 0 Hz , 1 H ) , 3 . 91 ( dd , J = 36 . 5 , 14 . 5 Hz , 1 H ) , 3 . 72 ( p , J = 6 . 6 Hz , 1 H ) , 3 . 56 - 3 . 40 ( m , 1 H ) , 2 . 73 ( d , J = 3 . 8 Hz , 3 H ) , 2 . 18 ( t , J = 7 . 8 Hz , 6 H ) , 2 . 02 ( t , J = 7 . 4 Hz , 6 H ) , 1 . 28 ( d , J = 1 . 7 Hz , 6 H ) .