Using Cc1nc(N2CCc3nc(C)sc3CC2)c([N+](=O)[O-])c(=O)[nH]1, CCI to produce CCOc1nc(C)nc(N2CCc3nc(C)sc3CC2)c1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.