Using CN1CCN(c2ccc(C(=O)O)cc2)CC1, Nc1cc(CCc2ccccc2)n[nH]1 to produce CN1CCN(c2ccc(C(=O)Nc3cc(CCc4ccccc4)n[nH]3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.