Using COC(=O)CC(C[N+](=O)[O-])c1c(C)c(Cl)cc(C(C)NC(=O)OC(C)(C)C)c1OC to produce COc1c(C(C)NC(=O)OC(C)(C)C)cc(Cl)c(C)c1C1CNC(=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.