Using CC(C)OB1OC(C)(C)C(C)(C)O1, Cc1cc2cc(Br)ccc2[nH]1 to produce Cc1cc2cc(B3OC(C)(C)C(C)(C)O3)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.