Using OB(O)c1cccc(C(F)(F)F)c1, NC(=O)c1cnc(N)c2c1sc1cc(Br)ccc12 to produce NC(=O)c1cnc(N)c2c1sc1cc(-c3cccc(C(F)(F)F)c3)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.