Using CCCN1CCC(Oc2ccc3[nH]c(=O)c4cccnc4c3c2)CC1 to produce CCCN1CCC(Oc2ccc3[nH]c(=O)c4c(c3c2)NCCC4)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.