Using COC(=O)c1ccccc1OCC(OC)(c1cccc(/C=C/c2ccc3ccc(Cl)cc3n2)c1)C1CC1 to produce COC(COc1ccccc1C(=O)O)(c1cccc(/C=C/c2ccc3ccc(Cl)cc3n2)c1)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.