1 H - NMR ( 400 MHz , CDCl 3 ) δ = 2 . 40 - 2 . 57 ( 8 H , m , 4 CH 2 ) , 2 . 64 - 2 . 66 ( 2 H , m , CH 2 ) , 3 . 04 - 3 . 13 ( 2 H , m , CH 2 ) , 3 . 44 ( 2 H , s , CH 2 ) , 3 . 87 - 3 . 93 ( H , m , CH ) , 7 . 13 - 7 . 15 ( 1 H , dd , J 1 = 8 . 2 , J 2 = 1 . 9 , Ph ) , 7 . 36 - 7 . 38 ( 1 H , d , J = 8 . 1 , Ph ) , 7 . 41 - 7 . 43 ( 3 H , m , Ph ) , 7 . 50 - 7 . 52 ( 2 H , d , J = 8 . 2 , Ph ) .