Using CC(C)(C)OC(=O)n1ccc2ccc(N)cc21, Brc1cn2ccnc2c(Br)n1 to produce CC(C)(C)OC(=O)n1ccc2ccc(Nc3nc(Br)cn4ccnc34)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.