Using O=C=O, CC(C)(C)[Si](C)(C)n1cc(Br)c2cc(-c3cccc(F)c3)cnc21 to produce CC(C)(C)[Si](C)(C)n1cc(C(=O)O)c2cc(-c3cccc(F)c3)cnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.