Using COC(=O)c1ccccc1-c1nnc(-c2ccc(C(C)(C)C)cc2)o1 to produce CC(C)(C)c1ccc(-c2nnc(-c3ccccc3C(=O)O)o2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.