Using Brc1cnc2cn[nH]c2c1, CC(C)(C)OC(=O)n1ncc2cc(Br)cnc21 to produce CC(C)(C)OC(=O)n1ncc2ncc(Br)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.