Using CC(=Cc1ccc(S(C)(=O)=O)c(F)c1)[N+](=O)[O-], C1CCOC1 to produce CC(=O)Cc1ccc(S(C)(=O)=O)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.