Using NNC1=Nc2ccc(Cl)cc2C(c2ccccc2)=NC1, O=C(Cl)c1ccccc1 to produce O=C(NNC1=Nc2ccc(Cl)cc2C(c2ccccc2)=NC1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.