Using Cc1cc(OC2CCC(C(C)(C)C)CC2)cc2ccccc12, COC(Cl)Cl to produce Cc1cc(OC2CCC(C(C)(C)C)CC2)cc2ccc(C=O)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.