Using O=C([O-])[O-], O=S(=O)(F)c1c(F)c(F)c(F)c(F)c1F to produce O=S(=O)([O-])c1c(F)c(F)c(F)c(F)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.