1 H - NMR ( 400 MHz , CDCl 3 ) δ = 2 . 55 - 2 . 66 ( m , 8 H , CH 2 ) , 3 . 74 ( d , 2 H , J = 1 . 972 , CH 2 ) , 3 . 76 ( s , 3 H , OMe ) , 3 . 94 ( t , 2 H , J = 4 . 986 , CH 2 ) , 4 . 10 - 4 . 15 ( m , 2 H , CH 2 ) , 6 . 80 - 7 . 22 ( m , 7 H , Ph ) .