Using CCOC(=O)c1cc(OCc2ccc(OC)cc2)c(OCc2ccc(OC)cc2)cc1Cl to produce COc1ccc(COc2cc(Cl)c(C(=O)O)cc2OCc2ccc(OC)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.