1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ 8 . 66 ( dd , J = 8 . 6 , 5 . 6 Hz , 1 H ) , 8 . 33 ( s , 1 H ) , 8 . 21 ( d , J = 9 . 3 Hz , 1 H ) , 7 . 76 ( t , J = 9 . 9 Hz , 2 H ) , 7 . 66 ( d , J = 8 . 5 Hz , 2 H ) , 7 . 34 ( d , J = 7 . 8 Hz , 2 H ) , 7 . 23 ( d , J = 7 . 7 Hz , 3 H ) , 6 . 84 ( d , J = 10 . 1 Hz , 0 H ) , 6 . 78 ( d , J = 8 . 9 Hz , 1 H ) , 4 . 61 ( dd , J = 8 . 2 , 4 . 0 Hz , 2 H ) , 4 . 45 ( d , J = 10 . 0 Hz , 1 H ) , 4 . 31 ( d , J = 10 . 0 Hz , 1 H ) , 4 . 18 ( d , J = 12 . 4 Hz , 2 H ) , 3 . 99 ( s , 0 H ) , 3 . 74 ( s , 2 H ) , 3 . 70 ( s , 3 H ) , 3 . 65 ( s , 2 H ) , 2 . 91 ( d , J = 8 . 1 Hz , 2 H ) , 2 . 80 ( d , J = 9 . 8 Hz , 1 H ) , 2 . 11 ( d , J = 10 . 9 Hz , 1 H ) , 1 . 33 - 1 . 23 ( m , 1 H ) , 1 . 16 ( s , 4 H ) , 1 . 15 ( s , 3 H ) , 1 . 12 ( s , 2 H ) , 1 . 03 ( s , 3 H ) .