Using CC(C)[Si](c1ncc(B2OC(C)(C)C(C)(C)O2)o1)(C(C)C)C(C)C, O=C(O)c1ccc(Br)c(F)c1 to produce O=C(O)c1ccc(-c2cnco2)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.