Using O=C(O)c1cc2cc(O)ccc2o1, COc1cc2nccc(Cl)c2cc1OC to produce COc1cc2nccc(Oc3ccc4oc(C(=O)O)cc4c3)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.