Using CON, CC(=O)c1cc(-c2ccc(S(C)(=O)=O)cc2)c(-c2ccc(F)cc2)s1 to produce CON=C(C)c1cc(-c2ccc(S(C)(=O)=O)cc2)c(-c2ccc(F)cc2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.