Using COc1ccc(C2(C)C(=O)Nc3cc(Cl)cc(Cl)c3C2=O)cc1 to produce CC1(c2ccc(O)cc2)C(=O)Nc2cc(Cl)cc(Cl)c2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.