Using CCO, Cc1cc(-c2ccncc2[N+](=O)[O-])cc(N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)n1 to produce CCc1cc(-c2ccncc2N)cc(N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.