Using c1ccc(N2CCNCC2)cc1, CCCc1cc(CCC=O)nn1C(C)(C)C to produce CCCc1cc(CCCN2CCN(c3ccccc3)CC2)nn1C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.