Using Brc1cc(Br)c(Br)s1, CC(C)(C)c1ccc(B(O)O)cc1 to produce CC(C)(C)c1ccc(-c2cc(Br)c(-c3ccc(C(C)(C)C)cc3)s2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.