Using COC(=O)c1c(NS(=O)(=O)c2ccccc2F)ccc2c1C(C)=CCC2 to produce COC(=O)c1c(NS(=O)(=O)c2ccccc2F)ccc2c1C(C)CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.