Using CCOC(CCc1ccccc1C(=O)OC)(OCC)c1cccc(/C=C/c2ccc3ccc(Cl)cc3n2)c1 to produce CCOC(CCc1ccccc1C(=O)O)(OCC)c1cccc(/C=C/c2ccc3ccc(Cl)cc3n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.