Using BrCC1CC1, CC(C)(C)OC(=O)N[C@@H]1CCCCNC1=O to produce CC(C)(C)OC(=O)N[C@@H]1CCCCN(CC2CC2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.