Using CCOC(=O)c1nc(-c2ccc(Cl)cc2Cl)c(-c2ccc(Cl)cc2)s1, N to produce NC(=O)c1nc(-c2ccc(Cl)cc2Cl)c(-c2ccc(Cl)cc2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.