Using Nc1cnc(Oc2ccc(Br)c(OC(F)(F)F)c2)nc1, CB(O)O to produce Cc1ccc(Oc2ncc(N)cn2)cc1OC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.