1 H - NMR ( 400 MHz , CDCl 3 ) δ = 2 . 56 - 2 . 68 ( m , 4 H , 2 CH 2 ) , 2 . 87 - 2 . 91 ( m , 2 H , CH 2 ) , 3 . 06 - 3 . 11 ( m , 4 H , 2 CH 2 ) , 3 . 86 ( s , 3 H , OMe ) , 3 . 97 ( d , 1 H , J = 2 . 716 Hz , CHA ) , 3 . 98 ( d , 1 H , J = 1 . 104 Hz , CHB ) , 4 . 11 - 4 . 19 ( m , 1 H , CH ) , 6 . 81 - 7 . 24 ( m , 8 H , Ph ) .