Using CCOC(=O)c1sc(-c2c(C)nn3ccccc23)nc1OS(=O)(=O)C(F)(F)F, OB(O)c1ccc(F)cc1 to produce CCOC(=O)c1sc(-c2c(C)nn3ccccc23)nc1-c1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.