Using CC(C)(C)OC(=O)N1CC[C@H](N)C1, Brc1cc2cccnc2c(Br)n1 to produce CC(C)(C)OC(=O)N1CC[C@H](Nc2nc(Br)cc3cccnc23)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.