Using Cc1ccc(-c2nc3ccc(Cl)nn3c2C)cc1NC(=O)C(C)(C)C, OB(O)c1ccc(F)cc1 to produce Cc1ccc(-c2nc3ccc(-c4ccccc4F)nn3c2C)cc1NC(=O)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.