Using CCC(CC)(COc1ccc(C(CC)(CC)c2ccc(OCc3ccccc3)c(C)c2)cc1C)OC(C)=O to produce CCC(CC)(COc1ccc(C(CC)(CC)c2ccc(O)c(C)c2)cc1C)OC(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.