Using NNc1ccncc1, O=C(O)/C=C\n1cnc(-c2cc(C(F)(F)F)cc(C(F)(F)F)c2)n1 to produce O=C(/C=C\n1cnc(-c2cc(C(F)(F)F)cc(C(F)(F)F)c2)n1)NNc1ccncc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.