Using COB(OC)OC, CC1=CC(C)(C)N(C(=O)OC(C)(C)C)c2ccc(Br)cc21 to produce CC1=CC(C)(C)N(C(=O)OC(C)(C)C)c2ccc(B(O)O)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.