Using Oc1c(-c2ccccc2Cl)ncc2cc(Cl)ncc12, NC(=O)C1CC1 to produce O=C(Nc1cc2cnc(-c3ccccc3Cl)c(O)c2cn1)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.