Using Brc1cn2ccnc2c(Br)n1, CN1CCC(c2ccc(N)cc2)CC1 to produce CN1CCC(c2ccc(Nc3nc(Br)cn4ccnc34)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.