Using O=C1NCC(c2ccccc2)CCC1Br, [N-]=[N+]=[N-] to produce [N-]=[N+]=N[C@@H]1CC[C@@H](c2ccccc2)CNC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.