Using CC(C)Cn1cnc2cnc3cccc(Br)c3c21, CCCOc1ccc(B(O)O)cc1 to produce CCCOc1ccc(-c2cccc3ncc4ncn(CC(C)C)c4c23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.