Using Nc1ccccc1C(=O)Nc1ccc(Cl)cc1, O=Cc1ccc(Cl)nc1 to produce O=c1c2ccccc2nc(-c2ccc(Cl)nc2)n1-c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.