Using O=C(O)COc1ccc(N2CCN(CCC3CCNCC3)CC2)cc1 to produce CCCCOC(=O)COc1ccc(N2CCN(CCC3CCNCC3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.