Using C[C@H]1CC[C@@H](N)CC1, CC(C)(C)OC(=O)N1CC(Oc2nc(Cl)ncc2Br)C1 to produce CC(C)(C)OC(=O)N1CC(Oc2nc(N[C@H]3CC[C@@H](C)CC3)ncc2Br)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.