Using BrCc1ccccc1, CN(c1ccccc1)c1nc(N)nc(-c2noc(C3CCNCC3)n2)n1 to produce CN(c1ccccc1)c1nc(N)nc(-c2noc(C3CCN(Cc4ccccc4)CC3)n2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.