Using Cn1c(Oc2ccc(Nc3ncnc(Cl)c3[N+](=O)[O-])cc2)nc2ccccc21 to produce Cn1c(Oc2ccc(Nc3ncncc3N)cc2)nc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.