Using CC(=O)NCC1(N2CCN(c3ccncc3)CC2)CCN(Cc2ccccc2)CC1 to produce CC(=O)NCC1(N2CCN(c3ccncc3)CC2)CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.