1 H NMR ( 300 MHz , CDCl 3 , rt ) : δ ( ppm ) 0 . 89 ~ 0 . 94 ( m , 9 H , CH 3 ) , 1 . 30 ~ 1 . 49 ( m , 22 H , CH 2 ) , 1 . 60 ~ 1 . 86 ( m , 9 H , CH 2 ) , 2 . 38 ( t , 2 H , J = 7 . 6 Hz , CH 2 CO ) , 3 . 34 ( d , J = 7 . 6 Hz , 2 H , NCH 2 ) , 3 . 41 ( t , J = 7 . 0 Hz , 2 H , NCH 2 ) , 3 . 55 ( t , J = 7 . 2 Hz , 2 H , NCH 2 ) , 3 . 99 ( t , J = 7 . 0 Hz , 2 H , NCH 2 ) , 4 . 28 ( t , J = 7 . 3 Hz , 2 H , OCH 2 ) , 5 . 28 ( s , 2 H , OCH 2 Ar ) , 6 . 70 ( d , J = 8 . 7 Hz , 2 H , aromatic protons ) , 7 . 21 ( t , J = 8 . 7 Hz , 2 H , aromatic protons ) , 7 . 37 ( d , J = 8 . 7 Hz , 2 H , aromatic protons ) , 7 . 45 ( t , J = 8 . 7 Hz , 2 H , aromatic protons ) , 8 . 07 ( d , J = 8 . 7 Hz , 2 H , aromatic protons ) , 8 . 45 ( d , J = 8 . 7 Hz , 2 H , aromatic protons ) .