Using CCOC(=O)c1cc(C)cc2c(C)c(C(=O)c3ccc(Cl)cc3Cl)oc12 to produce Cc1cc(C(=O)O)c2oc(Cc3ccc(Cl)cc3Cl)c(C)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.