Using NNC1=Nc2sc(Cl)cc2C(c2ccccc2Cl)=NC1, O=C(Cl)CCl to produce ClCc1nnc2n1-c1sc(Cl)cc1C(c1ccccc1Cl)=NC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.