Using Cc1cc(C2C3CC4CC(C3)CC2C4)c(O)cc1[N+](=O)[O-] to produce Cc1cc(C2C3CC4CC(C3)CC2C4)c(O)cc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.