Using O=Cc1cccc(C(F)(F)F)c1, BrC1CCC2(CC1)OCCO2 to produce OCc1cccc(C(F)(F)F)c1C1CCC2(CC1)OCCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.