Using CC(C)=CC(=O)C(F)(F)F, CC1(c2cccc(Br)c2)OCCO1 to produce CC(C)(CC(=O)C(F)(F)F)c1cccc(C2(C)OCCO2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.