Using O=C(O)c1ccc(Cl)nc1Cl, Nc1ccc(C(=O)N2CCOCC2)cc1 to produce O=C(O)c1ccc(Cl)nc1Nc1ccc(C(=O)N2CCOCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.