Using Nc1ncc(Br)nc1C(=O)Nc1cccnc1, O=C(O)c1ccc(B(O)O)cc1 to produce Nc1ncc(-c2ccc(C(=O)O)cc2)nc1C(=O)Nc1cccnc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.