Using CC(C)(C)OC(=O)NCC1CCN(c2ncc(S(C)(=O)=O)cc2[N+](=O)[O-])CC1 to produce CC(C)(C)OC(=O)NCC1CCN(c2ncc(S(C)(=O)=O)cc2N)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.