Using Cc1cccc(CC2(C(=O)OCc3ccccc3)CCN(C(=O)OC(C)(C)C)CC2)c1 to produce Cc1cccc(CC2(C(=O)O)CCN(C(=O)OC(C)(C)C)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.