Using C[C@H]1C(=O)N(CCC(=O)OC(C)(C)C)CCN1C(=O)Nc1ccc(Cl)c(Cl)c1 to produce C[C@H]1C(=O)N(CCC(=O)O)CCN1C(=O)Nc1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.