Using CC(=O)NNC1C=NC(c2ccccc2)=c2cc(Cl)ccc2=N1 to produce Cc1nnc2n1-c1ccc(Cl)cc1C(c1ccccc1)=NC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.