Using CCOC(C)n1cc(B2OC(C)(C)C(C)(C)O2)cn1, CC(=O)c1cc(Cl)cc(Br)c1-c1cc(F)cc(F)c1 to produce CCOC(C)n1cc(-c2cc(Cl)cc(C(C)=O)c2-c2cc(F)cc(F)c2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.