Using CC(ON1C(C)(C)CCCC1(C)C)C(=O)NC(C)(C)C(=O)O to produce CC(ON1C(C)(C)CCCC1(C)C)C1=NC(C)(C)C(=O)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.