Using OB(O)c1ccccc1F, COC(=O)c1cc(OS(=O)(=O)C(F)(F)F)c(=O)n2c1CCC2C to produce CC1CCc2c(C(=O)O)cc(-c3ccccc3F)c(=O)n21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.