Using CC(C)(C)OC(=O)N(c1cc(Cl)nc2c(C=O)cnn12)C1CC1, N#Cc1ccc(N)c(Br)c1 to produce CC(C)(C)OC(=O)N(c1cc(Nc2ccc(C#N)cc2Br)nc2c(C=O)cnn12)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.