Using O=Cc1ccccc1, CCN(Cc1cc(Br)ccc1N)c1ccc(C(N)=O)nn1 to produce CCN(Cc1cc(Br)ccc1NCc1ccccc1)c1ccc(C(N)=O)nn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.