Using Cc1c(Cl)nc2cc(F)cc(F)c2c1Cl, OB(O)c1cncc(Cl)c1 to produce Cc1c(-c2cncc(Cl)c2)nc2cc(F)cc(F)c2c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.