Using [N-]=[N+]=NCc1cc(C(F)(F)F)cc(C(F)(F)F)c1, CCOC(=O)CC(=O)OCC to produce CCOC(=O)c1nnn(Cc2cc(C(F)(F)F)cc(C(F)(F)F)c2)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.