Using COC(=O)c1cc(Cl)c(NC(=O)c2ccc(OC)c3oc(C(C)C)cc23)c(Cl)c1 to produce COc1ccc(C(=O)Nc2c(Cl)cc(C(=O)O)cc2Cl)c2cc(C(C)C)oc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.