Using COC(=O)C(C)(C)c1ccc2c(c1)[nH]c1ccc(Cl)cc12 to produce CC(C)(C(=O)O)c1ccc2c(c1)[nH]c1ccc(Cl)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.