Using CCCCCC1COc2cc(C=CC3=Cc4cc(F)cc(F)c4OC3)c(F)cc2C1 to produce CCCCCC1COc2cc(CCC3=Cc4cc(F)cc(F)c4OC3)c(F)cc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.