Using CN(Cc1ccccc1)C(=O)CC(CC(=O)N(C)Cc1ccccc1)N1CCCC1 to produce CN(CCC(CCN(C)Cc1ccccc1)N1CCCC1)Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.