Using CN1CCC(C(C)(C)c2ccc(NC(=O)c3ccccc3[N+](=O)[O-])cc2)CC1 to produce CN1CCC(C(C)(C)c2ccc(NC(=O)c3ccccc3N)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.