1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ 8 . 74 ( d , J = 2 . 2 Hz , 1 H ) , 8 . 67 ( d , J = 2 . 2 Hz , 1 H ) , 8 . 63 ( s , 1 H ) , 8 . 02 ( d , J = 5 . 1 Hz , 1 H ) , 7 . 93 ( s , 1 H ) , 7 . 21 ( d , J = 5 . 1 Hz , 1 H ) , 4 . 55 - 4 . 33 ( m , 2 H ) , 3 . 94 ( ddd , J = 36 . 6 , 14 . 5 , 2 . 1 Hz , 1 H ) , 3 . 62 - 3 . 43 ( m , 1 H ) , 3 . 41 - 3 . 31 ( m , 1 H ) , 2 . 98 ( s , 3 H ) , 2 . 36 - 2 . 21 ( m , 2 H ) , 2 . 21 - 2 . 10 ( m , 1 H ) , 2 . 09 - 1 . 98 ( m , 1 H ) , 1 . 98 - 1 . 84 ( m , 3 H ) , 1 . 83 - 1 . 69 ( m , 1 H ) , 1 . 29 ( d , J = 1 . 6 Hz , 6 H ) .