Using CC(C)c1nn(Cc2ccc(Br)cc2F)c(=O)c(C(=O)NCC(=O)O)c1O, OB(O)c1ccccc1 to produce CC(C)c1nn(Cc2ccc(-c3ccccc3)cc2F)c(=O)c(C(=O)NCC(=O)O)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.