Using O=C(O)CCc1ccc(O)c(O)c1, COC(=O)c1ccc(N)cc1 to produce COC(=O)c1ccc(NC(=O)CCc2ccc(O)c(O)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.