1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ 8 . 75 ( d , J = 2 . 2 Hz , 1 H ) , 8 . 66 ( d , J = 2 . 2 Hz , 1 H ) , 8 . 60 ( s , 1 H ) , 8 . 00 ( d , J = 5 . 1 Hz , 1 H ) , 7 . 86 ( s , 1 H ) , 7 . 21 ( d , J = 5 . 0 Hz , 1 H ) , 6 . 76 ( d , J = 1 . 2 Hz , 1 H ) , 4 . 41 ( ddd , J = 49 . 1 , 9 . 4 , 2 . 1 Hz , 1 H ) , 4 . 24 - 4 . 15 ( m , 1 H ) , 4 . 05 - 3 . 82 ( m , 1 H ) , 3 . 59 - 3 . 42 ( m , 1 H ) , 3 . 02 - 2 . 90 ( m , 1 H ) , 2 . 42 ( s , 3 H ) , 2 . 17 - 1 . 90 ( m , 6 H ) , 1 . 90 - 1 . 74 ( m , 2 H ) , 1 . 28 ( d , J = 1 . 7 Hz , 6 H ) .