Using COc1cc(N2CCC(CCS(C)(=O)=O)CC2)ccc1[N+](=O)[O-] to produce COc1cc(N2CCC(CCS(C)(=O)=O)CC2)ccc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.