Using CCCc1ccc(-c2ccc(C=CC3(F)C(F)=C(OCC)C=CC3C)cc2)cc1 to produce CCCc1ccc(-c2ccc(CCC3(F)C(F)=C(OCC)C=CC3C)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.