Using OB(O)c1ccc(F)cc1, Nc1cc(C(F)(F)F)c(Br)nc1C(=O)O to produce Nc1cc(C(F)(F)F)c(-c2ccc(F)cc2)nc1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.