Using OB(O)c1cccc(C(F)(F)F)c1, Cc1[nH]cc(C(=O)O)c(=O)c1Br to produce Cc1[nH]cc(C(=O)O)c(=O)c1-c1cccc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.