Using CC(C)Oc1ccc(B2OC(C)(C)C(C)(C)O2)cc1C#N, Clc1nc(Br)ns1 to produce CC(C)Oc1ccc(-c2nc(Br)ns2)cc1C#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.