Using Nc1cccc(NC(=O)c2ccccc2)c1, O=C1Cc2ccc(C(=O)O)cc2N1 to produce O=C1Cc2ccc(C(=O)Nc3cccc(NC(=O)c4ccccc4)c3)cc2N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.