1 H NMR ( 400 MHz , 클로로포름 - d ) δ 8 . 02 ( s , 0 H ) , 7 . 59 ( d , J = 8 . 0 Hz , 2 H ) , 7 . 00 ( d , J = 7 . 9 Hz , 2 H ) , 5 . 37 ( s , 1 H ) , 5 . 04 ( s , 1 H ) , 4 . 02 ( s , 1 H ) , 3 . 83 ( s , 1 H ) , 3 . 74 - 3 . 58 ( m , 1 H ) , 2 . 95 ( s , 1 H ) , 2 . 88 ( d , J = 0 . 7 Hz , 1 H ) , 2 . 85 ( d , J = 7 . 7 Hz , 1 H ) , 2 . 80 ( s , 6 H ) , 1 . 38 ( s , 8 H ) , 1 . 01 ( d , J = 10 . 5 Hz , 1 H ) , 0 . 90 ( s , 8 H ) , 0 . 66 ( d , J = 4 . 7 Hz , 4 H ) .