Using COC(=O)C(C)(C)C(C)Nc1c(C(N)=O)cnn2cc(-c3ccccc3)cc12 to produce CC(Nc1c(C(N)=O)cnn2cc(-c3ccccc3)cc12)C(C)(C)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.