Using O=C(c1cc([N+](=O)[O-])cc(C(F)(F)F)c1)N1CCOCC1 to produce O=[N+]([O-])c1cc(CN2CCOCC2)cc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.