Using CCOC(=O)C(Cc1cccc(C(=O)c2ccc(Cl)cc2)c1OC)C(=O)[O-] to produce COc1c(CC(C(=O)O)C(=O)O)cccc1C(=O)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.