Using O=Cc1ccn(-c2ccccc2)c1, c1ccc(CC2CCNCC2)cc1 to produce c1ccc(CC2CCN(Cc3ccn(-c4ccccc4)c3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.