Using CCOC(=O)c1cc(NC(=O)C(C)(C)C)n(-c2ccccc2)n1 to produce CC(C)(C)C(=O)Nc1cc(C(=O)O)nn1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.