Using CCOC(=O)c1nc(-c2ccc(N3CCOCC3)cc2)[nH]c1-c1ccc(Cl)cc1 to produce O=C(O)c1nc(-c2ccc(N3CCOCC3)cc2)[nH]c1-c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.