Using CNc1ccc([N+](=O)[O-])cc1CN(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C, CC(=O)Cl to produce CC(=O)N(C)c1ccc([N+](=O)[O-])cc1CN(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.