Using CC(C)(C)C1CN(C(=O)[O-])Cc2cc(-c3cnc(N)c([N+](=O)[O-])c3)ccc2O1 to produce Nc1ncc(-c2ccc3c(c2)CNCCO3)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.