1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ 8 . 49 ( s , 2 H ) , 7 . 53 ( t , J = 59 . 7 Hz , 1 H ) , 7 . 45 ( d , J = 8 . 2 Hz , 2 H ) , 7 . 34 ( d , J = 7 . 8 Hz , 2 H ) , 7 . 23 ( d , J = 8 . 1 Hz , 2 H ) , 7 . 14 ( d , J = 10 . 1 Hz , 1 H ) , 6 . 94 ( d , J = 2 . 8 Hz , 1 H ) , 6 . 82 ( d , J = 10 . 0 Hz , 1 H ) , 4 . 50 - 4 . 39 ( m , 1 H ) , 4 . 38 ( s , 2 H ) , 4 . 34 - 4 . 26 ( m , 1 H ) , 4 . 14 ( d , J = 12 . 5 Hz , 2 H ) , 4 . 10 - 3 . 99 ( m , 2 H ) , 3 . 94 ( d , J = 13 . 1 Hz , 1 H ) , 3 . 80 - 3 . 72 ( m , 2 H ) , 3 . 69 ( s , 3 H ) , 3 . 66 ( s , 3 H ) , 3 . 45 - 3 . 38 ( m , 2 H ) , 2 . 94 - 2 . 82 ( m , 3 H ) , 2 . 82 - 2 . 73 ( m , 1 H ) , 1 . 16 ( s , 3 H ) , 1 . 14 ( s , 3 H ) , 1 . 11 ( s , 3 H ) , 1 . 06 - 0 . 99 ( m , 3 H ) .