Using COc1ccc2c(n1)NC(=O)CN2, O=C(Cl)OCc1ccccc1 to produce COc1ccc2c(n1)NC(=O)CN2C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.