Using CC1(N2CCC(Cc3ccc(Cl)cc3Cl)C2=O)CCC(OC(=O)c2ccc([N+](=O)[O-])cc2)CC1 to produce CC1(N2CCC(Cc3ccc(Cl)cc3Cl)C2=O)CCC(O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.