Using CCCCCOc1c(OC)ccc2c(=O)n(CCc3ccc(OCc4ccccc4)cc3)ccc12 to produce CCCCCOc1c(OC)ccc2c(=O)n(CCc3ccc(O)cc3)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.