1 H NMR ( 399 . 9 MHz , CDCl 3 ) δ 1 . 81 ( 2 H , m ) , 2 . 02 ( 2 H , m ) , 2 . 86 ( 1 H , m ) , 3 . 04 - 3 . 17 ( 5 H , m ) , 3 . 30 - 3 . 49 ( 5 H , m ) , 3 . 69 ( 2 H , m ) , 4 . 39 ( 2 H , m ) , 7 . 13 ( 1 H , d ) , 7 . 24 ( 2 H , d ) , 7 . 39 ( 2 H , d ) , 7 . 93 ( 1 H , d ) ; m / z = 463 [ M + H ] +.