Using C=Cc1cc(CNC(=O)NCc2ccc(C(C)(C)C)cc2)cc(F)c1NS(C)(=O)=O to produce CCc1cc(CNC(=O)NCc2ccc(C(C)(C)C)cc2)cc(F)c1NS(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.