Using NCCc1ccccc1, O=C(O)c1ccc2n(c1=O)CCc1ccccc1-2 to produce O=C(NCCc1ccccc1)c1ccc2n(c1=O)CCc1ccccc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.