Using O=[O+][O-], C=C1CCC(C(N)=O)(C(C)C)C1Cc1cc(C(F)(F)F)cc(C(F)(F)F)c1 to produce CC(C)C1(C(N)=O)CCC(=O)C1Cc1cc(C(F)(F)F)cc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.