Using CC(C)(C)OC(=O)N1C2CCC1CC(=Cc1ccc(Cl)c(Cl)c1)C2 to produce CC(C)(C)OC(=O)N1C2CCC1CC(Cc1ccc(Cl)c(Cl)c1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.