Using OB(O)c1ccncc1Cl, Nc1cnc(Br)c(-c2cccc(F)c2)n1 to produce Nc1cnc(-c2ccncc2Cl)c(-c2cccc(F)c2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.