Using COc1ccc(C=CC(=O)Cl)cc1, O=C(O)c1ccc(O)cc1 to produce COc1ccc(C=CC(=O)Oc2ccc(C(=O)O)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.