Using CC(=O)NCc1ccc2ccn(C3CCNCC3)c2c1, BrCCc1cccnc1 to produce CC(=O)NCc1ccc2ccn(C3CCN(CCc4cccnc4)CC3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.