Using CCOC(=O)c1c(OC)c2cc(OCc3ccccc3)ccc2n1Cc1ccc(Cl)c(Cl)c1 to produce CCOC(=O)c1c(OC)c2cc(O)ccc2n1Cc1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.