1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ 8 . 50 ( s , 2 H ) , 8 . 20 ( d , J = 9 . 5 Hz , 1 H ) , 8 . 12 ( s , 1 H ) , 7 . 55 ( t , J = 61 . 0 Hz , 1 H ) , 7 . 46 ( d , J = 8 . 6 Hz , 2 H ) , 7 . 35 ( d , J = 7 . 7 Hz , 2 H ) , 7 . 24 ( d , J = 8 . 3 Hz , 2 H ) , 6 . 95 ( s , 1 H ) , 4 . 44 ( s , 1 H ) , 4 . 40 ( s , 2 H ) , 4 . 31 ( s , 1 H ) , 4 . 15 ( d , J = 15 . 7 Hz , 4 H ) , 3 . 95 ( d , J = 12 . 9 Hz , 1 H ) , 3 . 75 ( s , 2 H ) , 3 . 70 ( s , 3 H ) , 3 . 67 ( s , 3 H ) , 3 . 50 ( s , 2 H ) , 3 . 03 ( d , J = 2 . 8 Hz , 3 H ) , 2 . 90 ( t , J = 12 . 3 Hz , 2 H ) , 2 . 80 ( d , J = 10 . 7 Hz , 1 H ) , 1 . 17 ( s , 3 H ) , 1 . 15 ( s , 3 H ) , 1 . 12 ( s , 3 H ) , 1 . 04 ( s , 3 H ) .