1 H NMR ( 400 MHz , 메탄올 - d 4 ) δ 8 . 84 - 8 . 71 ( m , 2 H ) , 8 . 71 - 8 . 58 ( m , 3 H ) , 8 . 15 - 7 . 88 ( m , 3 H ) , 7 . 23 ( d , J = 5 . 0 Hz , 1 H ) , 5 . 03 ( ddd , J = 12 . 3 , 7 . 4 , 5 . 0 Hz , 1 H ) , 4 . 38 ( ddd , J = 49 . 0 , 9 . 4 , 2 . 1 Hz , 1 H ) , 4 . 03 - 3 . 73 ( m , 3 H ) , 3 . 60 - 3 . 33 ( m , 3 H ) , 1 . 25 ( d , J = 1 . 6 Hz , 6 H ) .