Using CC(C)=CCc1c(OCc2ccccc2)ccc(C(=O)C=Cc2ccc(OCc3ccccc3)cc2)c1O to produce CC(C)CCc1c(O)ccc(C(=O)CCc2ccc(O)cc2)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.