Using COc1cccc(-c2cccc(-n3cnc4cc([N+](=O)[O-])ccc43)c2)c1 to produce COc1cccc(-c2cccc(-n3cnc4cc(N)ccc43)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.