Using COC(=O)c1ccc2c(=O)[nH]c(C(=O)OCc3ccccc3)nc2c1 to produce COC(=O)c1ccc2c(c1)NC(C(=O)O)NC2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.