Using COc1c([N+](=O)[O-])cc(C(C)(C)C)cc1C(C)(C)C#N to produce COc1c(N)cc(C(C)(C)C)cc1C(C)(C)C#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.