Using COC(=O)c1ccc(C(=O)O)nc1, NC(=O)c1cccc(N)c1N to produce COC(=O)c1ccc(C(=O)Nc2cccc(C(N)=O)c2N)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.