Using COC(=O)c1ccc(C(=O)/C=C/c2cccc(O)c2)cc1Cl to produce COC(=O)c1ccc(C(O)/C=C/c2cccc(O)c2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.