Using COC(=O)c1nnn(Cc2cc(C(F)(F)F)cc(C(F)(F)F)c2)c1-c1ccccc1, NCCN to produce FC(F)(F)c1cc(Cn2nnc(C3=NCCN3)c2-c2ccccc2)cc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.