Using CCOC=O, O=S(=O)(c1ccccc1)n1cc(-c2ccc(F)cc2)c2cnccc21 to produce O=Cc1c(-c2ccc(F)cc2)c2cnccc2n1S(=O)(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.