Using Cn1cc(-c2cccc(B3OC(C)(C)C(C)(C)O3)c2)cn1, Brc1cnc(I)nc1 to produce Cn1cc(-c2cccc(-c3ncc(Br)cn3)c2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.