Using CC(C)(C)n1nnnc1-c1ccccc1Br, CC(C)OB(OC(C)C)OC(C)C to produce CC(C)(C)n1nnnc1-c1ccccc1B(O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.