Using CC(=O)Nc1cnc(Br)c(N)n1, OB(O)c1cc(Cl)cc(Cl)c1Cl to produce CC(=O)Nc1cnc(-c2cc(Cl)cc(Cl)c2Cl)c(N)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.