Using O=C(CN1CCC(N2Cc3ccccc3NC2=O)CC1)c1ccc(Cl)cc1 to produce O=C1Nc2ccccc2CN1C1CCN(CC(O)c2ccc(Cl)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.