Using CCCC1CCC(c2ccc(-c3ccc(C4CCC(CCC)OC4O)c(F)c3F)c(F)c2F)CC1 to produce CCCC1CCC(c2ccc(-c3ccc(C4CCC(CCC)OC4)c(F)c3F)c(F)c2F)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.