Using CCC1C(C)C(CO)CCC1(O)c1ccc(OCc2ccccc2)cc1 to produce CCC1C(c2ccc(OCc3ccccc3)cc2)=CCC(CO)C1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.