1 H NMR ( 300 MHz , 클로로포름 - d ) δ ppm 1 . 41 ( s , 9 H ) 2 . 35 ( s , 6 H ) 2 . 62 ( br . t , J = 1 . 00 , 1 . 00 Hz , 2 H ) 3 . 56 ( t , J = 4 . 90 Hz , 2 H ) 3 . 84 ( m , J = 7 . 20 Hz , 1 H ) 3 . 92 ( s , 3 H ) 4 . 44 ( br . s . , 2 H ) 6 . 98 ( d , J = 8 . 69 Hz , 1 H ) 7 . 46 - 7 . 71 ( m , 5 H ) 8 . 14 ( d , J = 9 . 44 Hz , 1 H ) 8 . 29 ( s , 1 H ) 8 . 46 ( s , 1 H ) 8 . 72 - 8 . 82 ( m , 2 H )