Using C=Cc1cc(NC(=O)OC(C)(C)C)c([N+](=O)[O-])cc1C(F)(F)F to produce C=Cc1cc(NC(=O)OC(C)(C)C)c(N)cc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.