Using CC(C)(C)c1cc(C(=O)OCCC(=O)Oc2ccc(Cl)c([N+](=O)[O-])c2)cc(C(C)(C)C)c1O to produce CC(C)(C)c1cc(C(=O)OCCC(=O)Oc2ccc(Cl)c(N)c2)cc(C(C)(C)C)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.