Using O=C1CCC(C2CCC(C3OCCO3)CC2)CC1, O=C1CCc2cc(Br)cc(F)c2O1 to produce O=C1CCc2cc(C3(O)CCC(C4CCC(C5OCCO5)CC4)CC3)cc(F)c2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.