Using CNC(=O)c1cccc(C2Nc3ccc(C(=O)OC)cc3CC2(C)C)c1 to produce CNC(=O)c1cccc(C2Nc3ccc(C(=O)O)cc3CC2(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.