Using CCOC(=O)c1cc2cccc(NC(=O)OC(C)(C)C)c2[nH]1 to produce CC(C)(C)OC(=O)Nc1cccc2cc(C(=O)O)[nH]c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.