Using O=C(CC(=O)OCc1ccccc1)OCc1ccccc1, COC(=O)c1ccc2c(=O)oc(=O)n(C)c2c1 to produce COC(=O)c1ccc2c(O)c(C(=O)OCc3ccccc3)c(=O)n(C)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.