Using Cc1cnc2n1-c1ccc(Cl)cc1C(c1ccccc1)=NC2, O=C(OO)c1cccc(Cl)c1 to produce Cc1cnc2n1-c1ccc(Cl)cc1C(c1ccccc1)=[N+]([O-])C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.