Using COC[C@@H](C)Oc1cc(OCc2ccccc2)cc(C(=O)OC)c1 to produce COC[C@@H](C)Oc1cc(OCc2ccccc2)cc(C(=O)O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.