Using O, CC[C@@H](NC(=O)c1cc(C(=O)C(Cl)(Cl)Cl)n2c1COCC2)c1ccccc1 to produce CC[C@@H](NC(=O)c1cc(C(=O)O)n2c1COCC2)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.