1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ 8 . 76 ( d , J = 2 . 2 Hz , 1 H ) , 8 . 69 ( d , J = 2 . 2 Hz , 1 H ) , 8 . 61 ( s , 1 H ) , 8 . 05 ( d , J = 5 . 1 Hz , 1 H ) , 7 . 91 ( s , 1 H ) , 7 . 23 ( d , J = 5 . 1 Hz , 1 H ) , 4 . 98 ( d , J = 5 . 9 Hz , 2 H ) , 4 . 52 - 4 . 33 ( m , 4 H ) , 4 . 23 - 4 . 11 ( m , 1 H ) , 3 . 93 ( dd , J = 36 . 2 , 14 . 4 Hz , 1 H ) , 3 . 58 - 3 . 42 ( m , 1 H ) , 3 . 30 - 3 . 18 ( m , 2 H ) , 3 . 19 - 3 . 07 ( m , 1 H ) , 2 . 23 - 2 . 12 ( m , 2 H ) , 1 . 78 - 1 . 61 ( m , 5 H ) , 1 . 29 ( d , J = 1 . 7 Hz , 6 H ) .