1 H NMR ( 300 MHz , CDCl 3 ) 7 . 33 ( m , 5 H ) , 5 . 17 ( m , 1 H ) , 4 . 56 ~ 4 . 53 ( m , 1 H ) , 3 . 65 ~ 3 . 48 ( m , 2 H ) , 2 . 33 ~ 1 . 96 ( m , 6 H ) , 1 . 67 ~ 1 . 59 ( m , 2 H ) , 1 . 29 ~ 1 . 23 ( m , 8 ) , 0 . 86 ( t , J = 7 . 6 , 3 H ) .