Using C1COCCN1, CN1CCc2c(c3cc(Cl)ccc3n2CCC(=O)O)C1 to produce CN1CCc2c(c3cc(Cl)ccc3n2CCC(=O)N2CCOCC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.